List of the Mesozoic life of Oregon

Last updated February 13, 2024

This list of the Mesozoic life of Oregon contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Oregon and are between 252.17 and 66 million years of age.

A

† Acanthocircus
- † Acanthocircus carinatus – or unidentified related form
- † Acanthocircus rotundus – or unidentified related form
† Acanthodiscus
- † Acanthodiscus subradiatus – or unidentified related form
Fossilized shells of the Early-Late Cretaceous marine bivalve Actinoceramus
† Actinoceramus
- † Actinoceramus salomoni
- † Actinoceramus subsulcatus
- † Actinoceramus sulcatus
† Agerchlamys
- † Agerchlamys boellingi
† Alpinophragmium – tentative report
† Amblysiphonella
- † Amblysiphonella steinmanni – or unidentified comparable form
- † Amblysiphonella timorica
† Ampakabastraea
- † Ampakabastraea cowichanensis
† Anahamulina
- † Anahamulina wilcoxensis
† Anatropites
† Andrazella
† Angulobracchia
- † Angulobracchia bulbosa
† Anoptychia
- † Anoptychia oregonensis – type locality for species
† Antexitus – type locality for genus
- † Antexitus inusitatus – type locality for species
- † Antexitus pessagnoi – type locality for species
- † Antexitus southforkensis – type locality for species
- † Antexitus yangi – type locality for species
† Anthostylis
- † Anthostylis acanthophora – or unidentified comparable form
† Antiquilima
† Apiotrigonia
- † Apiotrigonia condoni
† Arcavicula – tentative report
Life restoration of two species of the Late Triassic ammonoid cephalopod Arcestes
† Arcestes
- † Arcestes gigantogaleatus – or unidentified comparable form
† Archaeocenosphaera
- † Archaeocenosphaera laseekensis
† Archaeodictyomitra
- † Archaeodictyomitra exigua
- † Archaeodictyomitra primigena
† Archaeohagiastrum
- † Archaeohagiastrum munitum – or unidentified related form
- † Archaeohagiastrum oregonense – type locality for species
† Archaeospongoprunum
- † Archaeospongoprunum helense
- † Archaeospongoprunum praeimlayi
† Arietoceltites
Shell of a modern Astarte bivalve
Astarte
† Astraeomorpha
- † Astraeomorpha confusa
- † Astraeomorpha crassisepta
† Austrisaturnalis
- † Austrisaturnalis quadriradiatus – or unidentified related form

B

† Baccanella
† Badouxia
- † Badouxia canadensis – type locality for species
- † Badouxia columbiae
† Barbuta
- † Barbuta senecaensis – type locality for species
† Bennettazhia
- † Bennettazhia oregonensis – type locality for species
† Bistarkum
- † Bistarkum bifurcum – type locality for species
- † Bistarkum rigidium – type locality for species
- † Bistarkum saginatum – type locality for species
† Broctus
- † Broctus ruesti – type locality for species
† Buchia
- † Buchia pacifica
- † Buchia piochii
- † Buchia uncitoides – or unidentified comparable form
† Bulbocyrtium
- † Bulbocyrtium tubum – type locality for species

C

Cadulus
Fossilized shell of the Late Cretaceous ammonoid cephalopod Calycoceras
† Calycoceras
- † Calycoceras naviculare – type locality for species
† Camptonectes
† Canelonus
- † Canelonus conus – or unidentified comparable form
† Canoptum
- † Canoptum anulatum
- † Canoptum artum – type locality for species
- † Canoptum macoyense – or unidentified comparable form
- † Canoptum merum
- † Canoptum poissoni
- † Canoptum praeanulatum
- † Canoptum spinosum – type locality for species
† Cantalum
† Canutus
- † Canutus fusus – type locality for species
- † Canutus giganteus
- † Canutus indomitus
- † Canutus nitidus – type locality for species
- † Canutus rockfishensis
† Capnodoce
- † Capnodoce anapetes – or unidentified related form
- † Capnodoce angusta – type locality for species
- † Capnodoce antiqua – type locality for species
- † Capnodoce baldiensis – type locality for species
- † Capnodoce beaulieui – type locality for species
- † Capnodoce copiosa – type locality for species
- † Capnodoce extenta – type locality for species
- † Capnodoce fragilis – type locality for species
- † Capnodoce gracilis – type locality for species
- † Capnodoce insueta – type locality for species
- † Capnodoce kochi – type locality for species
- † Capnodoce malaca – type locality for species
- † Capnodoce media – type locality for species
- † Capnodoce minuscula – type locality for species
- † Capnodoce minuta – type locality for species
- † Capnodoce sinuosa – type locality for species
- † Capnodoce traversi
† Capnuchosphaera
- † Capnuchosphaera colemani – type locality for species
- † Capnuchosphaera deweveri
- † Capnuchosphaera schenki – type locality for species
- † Capnuchosphaera silviesensis – type locality for species
- † Capnuchosphaera smithorum – type locality for species
- † Capnuchosphaera sockensis – type locality for species
- † Capnuchosphaera soldierensis – type locality for species
- † Capnuchosphaera texensis – type locality for species
Cardinia
† Cardinioides
- † Cardinioides josephus
† Cassianella
- † Cassianella angusta
† Catoma – type locality for genus
- † Catoma concinna – type locality for species
- † Catoma geometrica – type locality for species
- † Catoma inedita – type locality for species
Life restoration of the Late Triassic-Middle Jurassic nautiloid cephalopod Cenoceras
† Cenoceras
- † Cenoceras lupheri – type locality for species
† Ceriostella
† Charlottea
- † Charlottea carterae – type locality for species
- † Charlottea weedensis – or unidentified comparable form
Chlamys
- † Chlamys mojsisovicsi
† Chondrocoenia
- † Chondrocoenia paradoxa
† Cleoniceras – tentative report
- † Cleoniceras dilleri – type locality for species
† Coccophyllum – tentative report
† Coelastarte
† Coenastraea
- † Coenastraea hyatti
† Colospongia
- † Colospongia utriculus
† Corum
- † Corum candidum – type locality for species
- † Corum parvum – type locality for species
† Crassistella
- † Crassistella juvavica
- † Crassistella vesiculosa – or unidentified comparable form
† Crenamussium
- † Crenamussium concentricum
Fossilized shell of the Early Cretaceous ammonoid cephalopod Crioceratites
† Crioceratites
† Crubus
- † Crubus chengi – type locality for species
- † Crubus firmus – type locality for species
† Crucella
- † Crucella angulosa – or unidentified comparable form
- † Crucella beata – type locality for species
- † Crucella concinna – type locality for species
- † Crucella jadeae – type locality for species
- † Crucella theokaftensis – or unidentified comparable form
† Cryptocoelia
† Cuifastraea
- † Cuifastraea granulata
† Cyathocoenia
- † Cyathocoenia gerthi – or unidentified comparable form

D

Dentalium
- † Dentalium stentor
† Diceratigalea
- † Diceratigalea mirus
- † Diceratigalea venustus
† Dichotomites
† Diplotremina
† Discamphiceras
- † Discamphiceras ornatum – type locality for species
† Discosiphonella
† Discotropites
† Distichophyllia
- † Distichophyllia norica
† Droltus
- † Droltus probosus
- † Droltus sanignacioensis
† Drulanta
- † Drulanta bella – type locality for species
- † Drulanta pulchra – type locality for species

E

† Elodium – tentative report
- † Elodium mackenziei
† Elysastraea
- † Elysastraea profunda
† Emiluvia
- † Emiluvia bacata – type locality for species
- † Emiluvia brevispina – type locality for species
- † Emiluvia goricanae – type locality for species
- † Emiluvia kozuri – type locality for species
- † Emiluvia oregonensis – type locality for species
- † Emiluvia parvinodosa – type locality for species
- † Emiluvia pessagnoi
† Empirea
† Endostoma
† Entolium
- † Entolium ceruleus – type locality for species
† Eocomoseris
- † Eocomoseris ramosa
† Erugonia
- † Erugonia canyonensis

F

† Fantus
- † Fantus exiguus – type locality for species
- † Fantus schoolhousensis – type locality for species
† Farcus
- † Farcus graylockensis
- † Farcus kozuri – type locality for species
- † Farcus lepidus – type locality for species
- † Farcus lipidus – or unidentified comparable form
- † Farcus multidorsus – type locality for species
† Fenestrula
- † Fenestrula jurassica – type locality for species
- † Fenestrula oregonensis – type locality for species
† Franziceras
- † Franziceras graylockense – type locality for species
† Frenguelliella – tentative report

G

† Gablonzeria
- † Gablonzeria profunda
Fossilized shell of the Carboniferous-Eocene bivalve Gervillia
† Gervillia
- † Gervillia angusta
† Gorgansium
- † Gorgansium beaverense – type locality for species
- † Gorgansium browni – type locality for species
- † Gorgansium morganense
- † Gorgansium silviesense
- † Gorgansium thayeri – type locality for species
- † Gorgansium vallieri
- † Gorgansium yangi – type locality for species
† Grammatodon
Interior and exterior of a fossilized shell of the Late Triassic-Eocene marine bivalve Gryphaea
† Gryphaea
- † Gryphaea arcuataeformis

H

† Hagiastrum
- † Hagiastrum macrum – type locality for species
- † Hagiastrum majusculum
† Hajarispongia
- † Hajarispongia whaleni – type locality for species
† Halobia
- † Halobia beyrichi
- † Halobia dilatata
- † Halobia halorica
- † Halobia oregonensis – type locality for species
- † Halobia radiata
- † Halobia salinarum
- † Halobia superba
† Halorella
† Hannaites
- † Hannaites riddlensis
- † Hannaites truncatus
† Hannaoceras
† Hemicryptocapsa
† Heptastylis
- † Heptastylis aquilae
- † Heptastylis oregonensis
† Hetalum – type locality for genus
- † Hetalum brevilabrum – type locality for species
† Higumastra
- † Higumastra angustabraccia – type locality for species
- † Higumastra exigua – type locality for species
- † Higumastra hui – type locality for species
- † Higumastra inflata – or unidentified comparable form
- † Higumastra laxa – type locality for species
- † Higumastra lupheri – type locality for species
- † Higumastra obesabraccia – type locality for species
- † Higumastra transversa
† Hilarisirex
- † Hilarisirex oregonensis
† Hiscocapsa
- † Hiscocapsa funatoensis
- † Hiscocapsa matsuokai – type locality for species
- † Hiscocapsa minuta – type locality for species
† Hollisites
- † Hollisites dichotomus – type locality for species
† Homoeoparonaella
- † Homoeoparonaella elegans
- † Homoeoparonaella hydensis – type locality for species
† Homolsomites
- † Homolsomites stantoni
† Hoplocrioceras
- † Hoplocrioceras remondi – or unidentified comparable form
Fossil of the Jurassic-Paleogene lobster Hoploparia
† Hoploparia
- † Hoploparia riddlensis – type locality for species
† Hsuum
- † Hsuum acutum – type locality for species
- † Hsuum belliatulum
- † Hsuum brevicostatum
- † Hsuum gratum – type locality for species
- † Hsuum lucidum – type locality for species
- † Hsuum lupheri
- † Hsuum mirabundum
- † Hsuum modicum – type locality for species
- † Hsuum parasolense
- † Hsuum parvulum – type locality for species
- † Hsuum robustum
- † Hsuum rosebudense
† Hyphantoceras
- † Hyphantoceras ceratopse – tentative report
- † Hyphantoceras irregulare – tentative report
† Hypophylloceras
- † Hypophylloceras onoense – or unidentified related form
- † Hypophylloceras onoensis – or unidentified related form

I

† Icrioma
- † Icrioma praecipua – type locality for species
- † Icrioma transversa – type locality for species
Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
† Inoceramus
† Isocyprina

J

† Jaworskiella
- † Jaworskiella supleiensis – type locality for species
† Justium – type locality for genus
- † Justium medium – type locality for species
- † Justium novum – type locality for species
- † Justium robustum – type locality for species

K

† Kahlerosphaera
† Katroma
- † Katroma angusta – type locality for species
- † Katroma bicornus – type locality for species
- † Katroma clara – type locality for species
- † Katroma inflata – type locality for species
- † Katroma ninstintsi
- † Katroma pinquitudo – or unidentified comparable form
† Kilianella
- † Kilianella besairiei – or unidentified comparable form
† Krumbeckiella – tentative report
- † Krumbeckiella timorensis – tentative report
† Kuhnastraea
- † Kuhnastraea decussata
- † Kuhnastraea incrassata

L

† Lantus
- † Lantus obesus – type locality for species
- † Lantus sixi – type locality for species
† Lanubus
- † Lanubus alatus – type locality for species
- † Lanubus dickinsoni
- † Lanubus hattorii – type locality for species
- † Lanubus holdsworthi
- † Lanubus purus
† Laxuscingula – type locality for genus
- † Laxuscingula obesa
† Leugeo
- † Leugeo hullae – type locality for species
- † Leugeo ordinarius
- † Leugeo parvispinata
Lima
- † Lima spinigera
† Liostrea
- † Liostrea newelli
Electron micrograph of fossilized teeth from the Early Jurassic-Early Cretaceous freshwater shark Lissodus
† Lissodus
- † Lissodus weltoni – type locality for species
† Lithiotis
- † Lithiotis problematica
† Loffa
- † Loffa lepida – type locality for species
- † Loffa vesterensis – type locality for species
Lopha
† Lucina
† Lupherium
- † Lupherium nitidum
- † Lupherium snowshoense
Fossilized shell of the Early Cretaceous ammonoid cephalopod Lyelliceras
† Lyelliceras
† Lytoceras
- † Lytoceras aulaeum

M

† Maeandrostylis
- † Maeandrostylis grandiseptus – type locality for species
- † Maeandrostylis vancouverensis
Fossilized shell of the Late Cretaceous ammonoid cephalopod Mantelliceras
† Mantelliceras
- † Mantelliceras phoenixense – type locality for species
† Margarastraea
- † Margarastraea pulchra – type locality for species
† Margarosmilia – report made of unidentified related form or using admittedly obsolete nomenclature
- † Margarosmilia confluens
† Meleagrinella
† Metapolygnathus
- † Metapolygnathus nodosus
Milax
- † Milax alienus
- † Milax flexuosus
Miliolipora
† Minetrigonia
† Minutusolla – type locality for genus
- † Minutusolla yaoi – type locality for species

† Modiolus

† Monotis
- † Monotis subcircularis
† Montlivaltia – report made of unidentified related form or using admittedly obsolete nomenclature
† Multimonilis – type locality for genus
- † Multimonilis pulcher – type locality for species
- † Multimonilis splendidus – or unidentified comparable form
† Myophorella
- † Myophorella argo – or unidentified comparable form
- † Myophorella freboldi – type locality for species
† Myophorigonia
- † Myophorigonia kobayashii
† Mysidiella
- † Mysidiella americana – or unidentified comparable form
- † Mysidiella cordillerana
† Mysidioptera
- † Mysidioptera spinigera
- † Mysidioptera williamsi

N

Napora
- † Napora antelopensis
- † Napora aperta – type locality for species
- † Napora baumgartneri
- † Napora bearensis
- † Napora cerromesaensis
- † Napora cosmica – or unidentified related form
- † Napora insolita
- † Napora milleri
- † Napora morganensis
- † Napora opaca
- † Napora proba – type locality for species
- † Napora propria – type locality for species
- † Napora relica – type locality for species
† Neoconocaryomma – type locality for genus
- † Neoconocaryomma acusspina – type locality for species
- † Neoconocaryomma mixtura – type locality for species
- † Neoconocaryomma tantulimamma – type locality for species
- † Neoconocaryomma tripalmaspina – type locality for species
† Neogondolella
† Neowrangellium
- † Neowrangellium pessagnoi – type locality for species
Fossilized shell of the Jurassic-Cretaceous sea snail Nerinea
† Nerinea
† Nevadaphyllites
- † Nevadaphyllites compressus
Nodosaria – or unidentified comparable form
† Noritus
- † Noritus lillihornensis – or unidentified comparable form
- † Noritus pauxillus
- † Noritus tenuis – type locality for species
Nucinella – or unidentified comparable form

O

† Occidentocerithium – type locality for genus
- † Occidentocerithium panthalassicum – type locality for species
Fossilized shell of the Early Cretaceous ammonoid cephalopod Olcostephanus
† Olcostephanus
- † Olcostephanus pecki
- † Olcostephanus popenoei
† Ophthalmidium
† Oppelismilia
† Orbiculiforma
- † Orbiculiforma densaora – type locality for species
- † Orbiculiforma hexagonaora – type locality for species
- † Orbiculiforma iniqua
- † Orbiculiforma librataspira – type locality for species
- † Orbiculiforma multifora – or unidentified related form
- † Orbiculiforma sentarota – type locality for species
† Orbiculiformella
- † Orbiculiformella callosa
- † Orbiculiformella trispina – type locality for species
† Oregoniceras
- † Oregoniceras jacksonense – type locality for species
- † Oregoniceras jillsoni – type locality for species
- † Oregoniceras multicostum
- † Oregoniceras phoenixense – type locality for species
Shell of an Ostrea , or oyster
Ostrea
† Otoscaphites
- † Otoscaphites perrini
† Oxytropidoceras

P

† Pachus – tentative report
Fossilized shell of the Late Cretaceous ammonoid cephalopod Pachydiscus
† Pachydiscus
- † Pachydiscus ashlandicus – type locality for species
- † Pachydiscus oregonensis – type locality for species
† Pachyoncus
- † Pachyoncus crassus – type locality for species
- † Pachyoncus floreus – type locality for species
- † Pachyoncus tumidus
- † Pachyoncus varius
† Palaeodasycladus – tentative report
† Palaeosaturnalis
- † Palaeosaturnalis subovalis
† Palaxius
† Palinandromeda
- † Palinandromeda fimbria
† Pamiroseris
- † Pamiroseris meriani
- † Pamiroseris smithi
† Pantanellium
- † Pantanellium baileyi – type locality for species
- † Pantanellium butonense – type locality for species
- † Pantanellium cumshewaense
- † Pantanellium fosteri
- † Pantanellium foveatum
- † Pantanellium inornatum
- † Pantanellium latum – type locality for species
- † Pantanellium malheurense – type locality for species
- † Pantanellium pinguisfloreus – type locality for species
- † Pantanellium sincerum – type locality for species
- † Pantanellium ultrasincerum
- † Pantanellium vigrassi – type locality for species
- † Pantanellium wui – type locality for species
† Paradelphinulopsis – type locality for genus
- † Paradelphinulopsis vallieri – type locality for species
† Paradeningeria – tentative report
† Paradiscamphiceras
- † Paradiscamphiceras athabascanense
- † Paradiscamphiceras dickinsoni
- † Paradiscamphiceras elkhornense – type locality for species
† Parahsuum
- † Parahsuum formosum – type locality for species
- † Parahsuum hiconocosta
- † Parahsuum izeense
- † Parahsuum mostleri – type locality for species
- † Parahsuum officerense
- † Parahsuum publicum
- † Parahsuum sporta – type locality for species
- † Parahsuum vizcainoense
† Parallelodon
- † Parallelodon monobensis – or unidentified comparable form
† Parasaturnalis
- † Parasaturnalis diplocyclis – type locality for species
- † Parasaturnalis yehae – type locality for species
† Parasepsagon
- † Parasepsagon variabilis
† Parentactinia
- † Parentactinia nakatsugawaensis
† Parentactinosphaera – tentative report
- † Parentactinosphaera longispinosa
† Paronaella
- † Paronaella araneae
- † Paronaella bona – type locality for species
- † Paronaella curticrassa
- † Paronaella fera – type locality for species
- † Paronaella grahamensis
- † Paronaella kotura
- † Paronaella obesa
- † Paronaella pessagnoi
- † Paronaella pygmaea
- † Paronaella skowkonaensis
- † Paronaella snowshoensis – type locality for species
- † Paronaella venadoensis – or unidentified related form
† Parvicingula
- † Parvicingula blackhornensis
- † Parvicingula blackhorsensis
- † Parvicingula elegans
- † Parvicingula matura
- † Parvicingula media
- † Parvicingula praeacutum
† Parvifavus
- † Parvifavus irregularis
† Parvivacca
- † Parvivacca blomei – or unidentified comparable form
† Perispyridium
- † Perispyridium apertum – type locality for species
- † Perispyridium darwini
- † Perispyridium dettermani – or unidentified comparable form
- † Perispyridium dumitricai
- † Perispyridium facetum
- † Perispyridium gujohachimanense
- † Perispyridium oregonense – type locality for species
- † Perispyridium schopfi
- † Perispyridium tamarackense
- † Perispyridium whalenae – type locality for species
Fossil of the Devonian-Cretaceous sponge Peronidella
† Peronidella
† Phacelostylophyllum
- † Phacelostylophyllum zitteli
Pholadomya
† Phylloceras
- † Phylloceras umpquanum
† Phyllopachyceras
- † Phyllopachyceras trinitense
- † Phyllopachyceras umpquanum
† Plafkerium
- † Plafkerium robustum – type locality for species
† Plagiostoma – tentative report
† Planiinvoluta
† Platymya
- † Platymya rockymontana
† Pleesus
- † Pleesus aptus – type locality for species
† Pleuromya
† Pleuronectites
Plicatula
- † Plicatula hekiensis
† Poulpus
- † Poulpus haeckeli – type locality for species
- † Poulpus karnicus – type locality for species
- † Poulpus lupheri – type locality for species
† Praeconocaryomma
- † Praeconocaryomma decora – type locality for species
- † Praeconocaryomma parvimamma
- † Praeconocaryomma splendida – type locality for species
- † Praeconocaryomma whiteavesi
- † Praeconocaryomma yakounensis
† Praeparvicingula
- † Praeparvicingula burnsensis
- † Praeparvicingula communis
- † Praeparvicingula decora
- † Praeparvicingula grantensis
- † Praeparvicingula inornata
- † Praeparvicingula prisca
- † Praeparvicingula profunda
- † Praeparvicingula schoolhousensis
- † Praeparvicingula sodaensis
- † Praeparvicingula tlellensis
- † Praeparvicingula vera
† Procyclolites
† Promathildia
† Pronoella
- † Pronoella uintahensis
† Protorcula
- † Protorcula frydai
† Protunuma
- † Protunuma japonicus
† Pseudocrucella
- † Pseudocrucella hilara – type locality for species
- † Pseudocrucella ornata – type locality for species
- † Pseudocrucella pecta – type locality for species
- † Pseudocrucella prava
- † Pseudocrucella tangae – type locality for species
† Pseudoheliodiscus
† Pseudolimea
- † Pseudolimea naumanni
† Pseudopantanellium
- † Pseudopantanellium floridum – type locality for species
† Pseudopoulpus
- † Pseudopoulpus acutipodium – type locality for species
- † Pseudopoulpus deweveri – type locality for species
† Pseudoristola
- † Pseudoristola faceta – type locality for species
- † Pseudoristola megaglobosa – type locality for species
† Pseudosaturniforma
- † Pseudosaturniforma minuta
† Pseudospondylospira
- † Pseudospondylospira perplexa
† Pseudostylosphaera
- † Pseudostylosphaera japonica
- † Pseudostylosphaera magnispinosa – type locality for species
† Purpuroidea – report made of unidentified related form or using admittedly obsolete nomenclature
† Pylostephanidium

Q

† Quadrisaturnalis – type locality for genus
- † Quadrisaturnalis dickinsoni – type locality for species
- † Quadrisaturnalis grandis – type locality for species
- † Quadrisaturnalis quadratus – type locality for species
† Quarticella
- † Quarticella ovalis – or unidentified comparable form

R

† Radium – type locality for genus
- † Radium pessagnoi – type locality for species
† Recticostastraea – type locality for genus
- † Recticostastraea wallowaensis – type locality for species
† Renzium – type locality for genus
- † Renzium adversum – type locality for species
- † Renzium webergorum – type locality for species
† Retiophyllia
- † Retiophyllia dawsoni
- † Retiophyllia norica
- † Retiophyllia oppeli – or unidentified related form
- † Retiophyllia parviseptum
† Ristola
- † Ristola prisca
- † Ristola reliqua – type locality for species
- † Ristola turpicula
† Rolumbus
- † Rolumbus beatus – type locality for species
- † Rolumbus hilarus – type locality for species
- † Rolumbus lautus – type locality for species

S

† Saitoum
- † Saitoum coronarium – or unidentified comparable form
- † Saitoum dickinsoni – type locality for species
- † Saitoum smithi – type locality for species
- † Saitoum thayeri – type locality for species
† Salzburgia – tentative report
† Sarasinella
- † Sarasinella densicostata – or unidentified comparable form
- † Sarasinella hyatti
- † Sarasinella subspinosa – or unidentified comparable form
† Sarla
- † Sarla delicata – type locality for species
- † Sarla externa – type locality for species
- † Sarla formosa – type locality for species
- † Sarla plena – type locality for species
- † Sarla triangulata – type locality for species
- † Sarla vetusta – or unidentified related form
† Scalarites
- † Scalarites mihoensis
† Scaphites
- † Scaphites condoni
† Schistophylloceras
- † Schistophylloceras aulonotum – or unidentified related form
† Sepsagon
- † Sepsagon longispinosus
† Septocardia
Life restoration of three species of the Middle-Late Triassic ichthyosaur genus Shastasaurus
† Shastasaurus
- † Shastasaurus pacificus – or unidentified comparable form
† Silicarmiger
† Simbirskites
- † Simbirskites elatus – or unidentified related form
- † Simbirskites progrediens – or unidentified related form
† Sontonaella
- † Sontonaella concinna – type locality for species
- † Sontonaella spongiosa – type locality for species
† Spinidelphinulopsis – type locality for genus
- † Spinidelphinulopsis whaleni – type locality for species
† Spitidiscus
- † Spitidiscus oregonensis – type locality for species
† Spondylospira
- † Spondylospira lewesensis
- † Spondylospira tricosta
† Spongiomorpha
- † Spongiomorpha acyclica
- † Spongiomorpha gibbosa – or unidentified comparable form
- † Spongiomorpha tenuis
† Spongocapsula
- † Spongocapsula palmerae
† Spongostylus
- † Spongostylus carnicus
† Stauracontium – tentative report
- † Stauracontium trispinosum
† Stromatomorpha
† Stuoresia
- † Stuoresia libratosepta – or unidentified comparable form
† Stylophyllopsis
- † Stylophyllopsis lindstroemi – or unidentified comparable form
- † Stylophyllopsis rudis – or unidentified comparable form
† Stylophyllum
† Subprionocyclus
- † Subprionocyclus branneri
- † Subprionocyclus neptuni
- † Subprionocyclus normalis – type locality for species
† Sympolycyclus
† Syringocapsa
- † Syringocapsa turgida

T

† Tardentactinia
- † Tardentactinia oregonensis – type locality for species
† Teichertus
- † Teichertus pessagnoi – type locality for species
- † Teichertus splendidus
† Telacapsula – type locality for genus
- † Telacapsula johndayensis – type locality for species
- † Telacapsula littlescottyensis – type locality for species
- † Telacapsula odoghertyi – type locality for species
- † Telacapsula wangi – type locality for species
† Tetraditryma
- † Tetraditryma coldspringensis
- † Tetraditryma corralitosensis
- † Tetraditryma pseudoplena
† Tetragonites
- † Tetragonites glabrus
- † Tetragonites jacksonense – type locality for species
† Tetrarchiplagia
- † Tetrarchiplagia yehae
† Tetratrabs
- † Tetratrabs acutusspina – type locality for species
- † Tetratrabs izeensis – type locality for species
- † Tetratrabs robustusspina – type locality for species
Fossil of the Triassic-Eocene stony coral Thamnasteria
† Thamnasteria
- † Thamnasteria borealis
† Thamnasteriamorpha
- † Thamnasteriamorpha frechi
† Thecomeandra
- † Thecomeandra vallieri
† Thecosmilia – report made of unidentified related form or using admittedly obsolete nomenclature
† Thurmanniceras
- † Thurmanniceras jenkinsi
- † Thurmanniceras stippi – or unidentified comparable form
- † Thurmanniceras wilcoxi
† Thurstonia
- † Thurstonia gibsoni – or unidentified comparable form
† Tolypammina
† Tosapecten
- † Tosapecten subhiemalis
† Tozerium
† Tragodesmoceras
- † Tragodesmoceras ashlandicum
† Triactoma
- † Triactoma rosespitensis
† Triassocampe
- † Triassocampe exilis – type locality for species
- † Triassocampe illyrica
- † Triassocampe immaturum
- † Triassocampe pulchra – or unidentified comparable form
- † Triassocampe sulovensis
† Triassocingula
† Triassocyrtium – tentative report
Fossilized shell of the Permian-Paleocene marine bivalve Trigonia
† Trigonia
- † Trigonia montanaensis
† Trillus
- † Trillus elkhornensis
- † Trillus seidersi – type locality for species
† Tripocyclia
- † Tripocyclia brooksi
- † Tripocyclia smithi
- † Tripocyclia southforkensis
- † Tripocyclia wickiupensis
† Tritrabs
- † Tritrabs simplex
- † Tritrabs suavis
- † Tritrabs worzeli – or unidentified comparable form
† Triversus
- † Triversus fastigatus
Trochocyathus
- † Trochocyathus oregonensis – type locality for species
† Tropites
† Turanta
- † Turanta fida – type locality for species
- † Turanta morinae
- † Turanta nodosa
† Turristylus
- † Turristylus triadicus – or unidentified related form
Fossilized shells of the Late Jurassic-modern tower snail Turritella
Turritella
- † Turritella buwaldana
† Tutcheria
- † Tutcheria densestriata
- † Tutcheria densestriatum

U

† Undularia
† Unuma – tentative report
- † Unuma unicus – type locality for species
† Uvanella
- † Uvanella norica

V

† Vaugonia
- † Vaugonia oregonensis – type locality for species
- † Vaugonia yukonensis – tentative report
Venericardia
† Vermiceras
- † Vermiceras mineralense
- † Vermiceras morganense – type locality for species
- † Vermiceras rursicostatum – or unidentified related form
† Verticiplagia
- † Verticiplagia oregonensis – type locality for species
- † Verticiplagia verticillata
- † Verticiplagia yehae

W

† Wallowaconcha
- † Wallowaconcha raylenea
† Wallowanerita – type locality for genus
- † Wallowanerita newtonae – type locality for species
† Wellsia
- † Wellsia oregonensis
- † Wellsia packardi
- † Wellsia vigorosa
† Weyla
† Williriedellum
- † Williriedellum frequens
† Wilvemia
† Wrangellium
- † Wrangellium izeense – type locality for species
- † Wrangellium oregonense – type locality for species
- † Wrangellium thurstonense – or unidentified comparable form

X

† Xiphostylus
- † Xiphostylus communis – type locality for species
- † Xiphostylus fragilis
- † Xiphostylus halli
- † Xiphostylus logdellensis
- † Xiphostylus simplus – type locality for species
- † Xiphostylus sinuosus
- † Xiphostylus superbus
- † Xiphostylus vallieri
- † Xiphostylus whalenae
† Xiphotheca
† Xiphothecaella
- † Xiphothecaella longa

Y

† Yamatoum
† Yeharaia
- † Yeharaia elegans

Z

† Zardinia – tentative report
† Zartus
- † Zartus dickinsoni – type locality for species
- † Zartus imlayi – type locality for species
- † Zartus jonesi – type locality for species
- † Zartus jurassicus – type locality for species
- † Zartus praejonesi – type locality for species
- † Zartus thayeri – type locality for species
† Zoneait – type locality for genus
- † Zoneait nargorum – type locality for species
† Zugmayerella
- † Zugmayerella americana – type locality for species
- † Zugmayerella uncinata

References

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 17 December 2021.

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List of the Mesozoic life of Oregon

Contents

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

References