Makah Formation

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Makah Formation
Stratigraphic range: Late Eocene to Early Oligocene
Branchioplax species 01 SR EC 07-01-26.jpg
Fossil of Branchioplax from the Makah Formation
Type Formation
Unit of Twin River Group
Underlies Pysht Formation
Overlies Hoko River Formation
Lithology
Primary Sandstone, siltstone
Location
Region Washington (state)
Country United States
Type section
Named for Makah Reservation
Named bySnavely et al, 1980

The Makah Formation is a geologic formation in Washington (state). It was deposited during the late Paleogene period between the late Eocene and early Oligocene epoches, and preserves marine fossils dating to the early Oligocene. It outcrops at the northwestern edge of the Olympic Peninsula. [1] [2]

Contents

Vertebrate paleobiota

The following fossil taxa are known: [2]

Mammals

Mammals of the Makah Formation
GenusSpeciesPresenceMaterialNotesImages
Fucaia F. buelliAn aetiocetid baleen whale.
Mysticeti indet.A baleen whale of uncertain affinities.

Birds

Birds of the Makah Formation
GenusSpeciesPresenceMaterialNotesImages
Galliformes indet.SkullA landfowl of uncertain affinities.
Klallamornis K. buchananiA plotopterid suliform. Klallamornis.jpg
K. clarki
Makahala M. miraeAn early tubenose seabird. [3]
?Phalacrocoracoidea indet.An indeterminate relative of cormorants and darters.
Tonsala T. hildegardaeA plotopterid suliform. Tonsala hildegardae.png

See also

References

  1. "Geolex — Makah publications". ngmdb.usgs.gov. Retrieved 2024-11-21.
  2. 1 2 "PBDB". paleobiodb.org. Retrieved 2024-11-21.
  3. Mayr, Gerald (2022), Mayr, Gerald (ed.), "Phaethontiformes and Aequornithes: The Aquatic and Semi-aquatic Neaovian Taxa" , Paleogene Fossil Birds, Cham: Springer International Publishing, pp. 117–152, doi:10.1007/978-3-030-87645-6_7, ISBN   978-3-030-87645-6 , retrieved 2024-11-21