Pachyceras

Last updated

Pachyceras
Temporal range: Callovian–Oxfordian [1]
Pachyceratidae - Pachyceras lalandeanum.JPG
Fossil of Pachyceras lalandeanum from Calvados (France), on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom:
Phylum:
Class:
Subclass:
Order:
Superfamily:
Family:
Genus:
Pachyceras

Bayle, 1878
Species [2]

Pachyceras is a genus of perisphinctoid ammonites from the Middle Jurassic, upper Callovian stage, and is the type genus for the family Pachyceratidae. The shell is involute, subglobular, with a deep umbilicus and flattened flanks that slope toward a more narrowly rounded venter, and covered by low, widely spaced ribs.

Distribution

Jurassic deposits of Egypt, France, India, Saudi Arabia and Switzerland. [2]

Related Research Articles

<i>Amoeboceras</i> Genus of molluscs (fossil)

Amoeboceras is an extinct genus of ammonite cephalopod closely related to the genus Cardioceras. Fossils are found in Late Jurassic-aged marine strata of Europe and Russia.

<i>Aulacostephanus</i> Genus of molluscs (fossil)

Aulacostephanus is an extinct ammonoid cephalopod genus from the Upper Jurassic Tithonian belonging to the perisphinctacean family Aulacostephanidae.

<i>Ataxioceras</i>

Ataxioceras is an extinct Ammonite cephalopod genus confined to the Upper Jurassic of Europe, included in the superfamily Perisphinctoidea.

<i>Cadomites</i>

Cadomites is an extinct ammonite genus from the superfamily Stephanoceratoidea that lived during the Middle Jurassic.

Eudmetoceras is an extinct genus from a well-known class of fossil cephalopods, the ammonites. It lived during the Jurassic Period, which lasted from 171.6 to 168.4 million years ago.

<i>Hyperlioceras</i> Genus of molluscs (fossil)

Hyperlioceras is an extinct genus of cephalopod included in the ammonitid family Graphoceratidae that lived during the Bajocian stage of the Middle Jurassic. The type species is Hyperlioceras discites

Petitclercia is a genus of molluscs from the strigoceratid subfamily Disticocratinae which are included in the ammonitid superfamily Haplocerataceae. Petitclercia, named by Rollier, 1909.

<i>Peltoceras</i> Genus of molluscs (fossil)

Peltoceras is an extinct ammonite genus from the aspidoceratid subfamily Peltoceratinae that lived during the later part of the Middle Jurassic.

<i>Phylloceras</i>

Phylloceras is an extinct genus of ammonoid cephalopods belonging to the family Phylloceratidae. These nektonic carnivores lived from Early Jurassic to Late Cretaceous.

Haploceras is a genus of late Upper Jurassic ammonoid cephalopods and the type for the Haploceratidae, similar to Lissoceras but with a broader whorl section and small blunt lappets and a blunt rostrum; some species with feeble ventral folds on body chamber.

<i>Lytoceras</i> Genus of molluscs (fossil)

Lytoceras is an ammonite genus that was extant during most of the Jurassic and Cretaceous periods, and is the type genus for the family Lytoceratidae. These cephalopods were fast-moving nektonic carnivores.

<i>Euaspidoceras</i> Genus of molluscs (fossil)

Euaspidoceras is an extinct ammonoid cephalopod genus that lived during the Middle Jurassic.

<i>Pterotrigonia</i> Extinct genus of bivalves

Pterorigonia is an extinct genus of saltwater clams, marine bivalve molluscs in the family Megatrigoniidae. This genus is known in the fossil record from the Jurassic period Tithonian age to the Cretaceous period Maastrichtian age. Species in this genus were facultatively mobile infaunal suspension feeders. The type species of the genus is Pterotrigonia cristata.

<i>Lithacoceras</i>

Lithacoceras is an extinct Ammonite cephalopod genus included in the superfamily Perisphinctoidea. These fast-moving nektonic carnivores lived during the Jurassic period, from the Oxfordian age to the Tithonian age.

<i>Cardioceras</i>

Cardioceras is an extinct ammonite genus belonging to the family Cardioceratidae. These fast-moving nektonic carnivores lived during the Jurassic period, Oxfordian age.

Parkinsoniidae

Parkinsoniidae is a family of ammonites belonging to the order Ammonitida. The cephalopod family lived from the Bajocian stage to the Bathonian age of the Middle Jurassic.

<i>Parkinsonia</i> (ammonite)

Parkinsonia is a genus of ammonites belonging to the family Parkinsoniidae.

Pachysphinctes

Pachysphinctes is an extinct genus of ammonites belonging to the Perisphinctidae family.

Reynesoceras is genus of ammonites that lived during the upper Pliensbachian stage of early Jurassic. It has evolved from Prodactylioceras, or Cetonoceras. Dactylioceras (Eodactylites) has probably evolved from this genus. Aveyroniceras is a name for macroconchs of this genus. Their fossils were found in Europe, northern Africa, Asia, North America and South America.

Raimondiceras Upper Jurassic ammonite belonging to the ammonitida family.

References

  1. Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Archived from the original on 2016-02-25. Retrieved 2017-10-18.CS1 maint: discouraged parameter (link)
  2. 1 2 Paleobiology Database - Pachyceras. 2017-10-18.