Astoria Formation
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Geologic formation in Oregon and Washington, United States
Sub-unitsFrom top to bottom:[1]
- Big Creek sandstone member
- Newport sandstone member
- Silver Point mudstone member
- Angora Peak sandstone member
UnderliesMontesano Formation[2]
OverliesLincoln Creek Formation[2]
| Astoria Formation | |
|---|---|
| Stratigraphic range: Miocene | |
| Type | Geological formation |
| Sub-units | From top to bottom:[1]
|
| Underlies | Montesano Formation[2] |
| Overlies | Lincoln Creek Formation[2] |
| Location | |
| Region | Washington, Oregon |
| Country | United States |
The Astoria Formation (formerly known as the Astoria shales) is a geologic formation in Washington state & Oregon. It preserves fossils dating back to the early to middle Miocene (but was formerly thought to date to the Oligocene).[1]
The Astoria Formation is a thick marine formation representing a near shore, relatively shallow-water shelf deposit.[2] The formation spans a considerable amount of time, with its base considered to be lower boundary of Newportian Stage (late Early Miocene) & its top to be upper boundary of Newportian Stage (middle Middle Miocene).[1]
Fossil content
 | This article is missing information about invertebrate, microorganisum, and plant taxa. Please expand the article to include this information. Further details may exist on the talk page. (February 2023) |
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Mammals
Carnivorans
| Genus | Species | Stratigraphy | Material | Notes | Images |
|---|---|---|---|---|---|
| Desmatophoca | D. brachycephala | East of Knappton, Washington.[3] | Skull elements.[3] | A desmatophocid. | |
| D. oregonensis | Iron Mountain Bed & an unspecified horizon.[3][4] | Multiple specimens.[3][4] | A desmatophocid. |  | |
| Enaliarctos | E. emlongi | South of Big Creek, Lincoln County, Oregon.[5] | USNM 250345.[5] | A pinnipedimorph, may instead be from the Nye Mudstone.[citation needed] |  |
| E. sp. | Iron Mountain bed, Lincoln County, Oregon.[6] | Partial skeleton (UWBM 89114).[6] | A pinnipedimorph. |  | |
| Eodesmus | E. condoni | Iron Mountain Bed, Oregon.[7] | A nearly complete cranium.[7] | A desmatophocid. | |
| Pacificotaria | P. hadromma | Iron Mountain bed, Lincoln County, Oregon.[8] | Complete cranium (LACM 127973).[8] | A pinnipedimorph. | |
| Proneotherium | P. repenningi | Lincoln County, Oregon.[9] | Remains of multiple individuals.[9] | An odobenid. | |
| Pteronarctos | P. goedertae | Lincoln County, Oregon.[10] | Skulls.[10] | A pinnipedimorph. |
Cetaceans
| Genus | Species | Presence | Material | Notes | Images |
|---|---|---|---|---|---|
| Cophocetus | C. oregonensis | North of Yaquina Bay.[4] | Associated skull, jaws & skeletal elements.[4] | A baleen whale. | |
| Dilophodelphis | D. fordycei | Nye Beach, Oregon.[11] | USNM 214911.[11] | A platanistid. |  |
| Wimahl | W. chinookensis | Washington State[12] | A kentriodontid. | ||
| Zarhinocetus | Z. donnamatsonae | Near Elma, Washington.[2] | UCMP 86139.[2] | An allodelphinid. | |
Perissodactyls
| Genus | Species | Presence | Material | Notes | Images |
|---|---|---|---|---|---|
| Aphelops | A. sp. | Fragment of skull (USNM 187123).[4] | A rhinoceros. | _(Ash_Hollow_Formation,_Middle_Miocene;_Hottell_Ranch,_near_Harrisburg,_Nebraska,_USA)_5_(32695130172).jpg) | |
| Tylocephalonyx | T. sp. | Iron Mountain Bed, Lincoln County, Oregon.[13] | A skull (NMNH 187129).[13] | A chalicothere. | |
Birds
| Genus | Species | Presence | Material | Notes | Images |
|---|---|---|---|---|---|
| Diomedeidae | Gen. et. sp. indet. | East of Knappton, Washington.[14] | Partial skeleton (SMF Av 644).[14] | An albatross. | |
Cartilaginous fish
| Genus | Species | Presence | Material | Notes | Images |
|---|---|---|---|---|---|
| Carcharodon | C. megalodon | North of Newport, Oregon.[15] | Species reassigned to the genus Otodus. | .jpg) | |
| Cetorhinus | C. piersoni | North of Newport, Oregon.[16] | Teeth.[16] | A basking shark. | |
| Cosmopolitodus | C. hastalis | Coos Bay, Oregon.[15] | A tooth.[15] | A lamnid shark. |  |
| C. planus? | North of Newport, Oregon.[15] | A lamnid shark. |  | ||
| Galeocerdo | G. cf. aduncus | North of Newport, Oregon.[15] | A requiem shark. | ,_Zuber,_Florida,_Estados_Unidos,_2021-01-19,_DD_105-144_FS.jpg) | |
| Hexanchus | North of Newport, Oregon.[15] | A cow shark. |  | ||
| Isurus | I. hastalis | Coos Bay, Oregon.[15] | A tooth.[15] | Species reassigned to Cosmopolitodus. | |
| I. planus? | North of Newport, Oregon.[15] | Species reassigned to Cosmopolitodus. | |||
| Myliobatis | North of Newport, Oregon.[15] | An eagle ray. |  | ||
| Otodus | O. megalodon | North of Newport, Oregon.[15] | Originally reported as Carcharodon megalodon. |  | |
See also
References
- 1 2 3 "Geolex — Astoria publications". ngmdb.usgs.gov. Retrieved 2022-12-19.
- 1 2 3 4 5 Toshiyuki, Kimura; Barnes, Lawrence G. (March 2016). "New Miocene fossil Allodelphinidae (Cetacea, Odontoceti, Platanistoidea) from the North Pacific Ocean". Bull.Gunma Mus.Natu.Hist. 20: 1–58.
- 1 2 3 4 Barnes, Lawrence G. (1987-06-18). "An Early Miocene pinniped of the genus Desmatophoca (Mammalia: Otariidae) from Washington". Contributions in Science. 382: 1–20. doi:10.5962/p.208126. ISSN 0459-8113. S2CID 198245103.
- 1 2 3 4 5 Ray, Clayton E. (1976). "Fossil Marine Mammals of Oregon". Systematic Zoology. 25 (4): 420–436. doi:10.2307/2412515. ISSN 0039-7989. JSTOR 2412515.
- 1 2 Berta, Annalisa (1991). "New Enaliarctos* (Pinnipedimorpha) from the Oligocene and Miocene of Oregon and the Role of "Enaliarctids" in Pinniped Phylogeny". Smithsonian Contributions to Paleobiology. 69 (69): 1–33. doi:10.5479/si.00810266.69.1. hdl:10088/19145.
- 1 2 Poust, Ashley; Boessenecker, Robert (2018). "Expanding the geographic and geochronologic range of early pinnipeds: new specimens of Enaliarctos from Northern California and Oregon". Acta Palaeontologica Polonica. 63. doi:10.4202/app.00399.2017. S2CID 55978096.
- 1 2 Tate-Jones, M. Kellum; Peredo, Carlos M.; Marshall, Christopher D.; Hopkins, Samantha S. B. (2020-07-03). "The Dawn of Desmatophocidae: A New Species of Basal Desmatophocid Seal (Mammalia, Carnivora) from the Miocene of Oregon, U.S.A.". Journal of Vertebrate Paleontology. 40 (4) e1789867. Bibcode:2020JVPal..40E9867T. doi:10.1080/02724634.2020.1789867. ISSN 0272-4634. S2CID 224935328.
- 1 2 Barnes, Lawrence G. (1992-04-07). "A new genus and species of Middle Miocene enaliarctine pinniped (Mammalia, Carnivora, Otariidae) from the Astoria Formation in coastal Oregon". Contributions in Science. 431: 1–27. doi:10.5962/p.208159. ISSN 0459-8113. S2CID 199822990.
- 1 2 Deméré, Thomas A.; Berta, Annalisa (2001-07-20). "A reevaluation of Proneotherium repenningi from the Miocene Astoria Formation of Oregon and its position as a basal odobenid (Pinnipedia: Mammalia)". Journal of Vertebrate Paleontology. 21 (2): 279–310. doi:10.1671/0272-4634(2001)021[0279:AROPRF]2.0.CO;2. ISSN 0272-4634. S2CID 88095414.
- 1 2 Berta, Annalisa (1994). New specimens of the Pinnipediform Pteronarctos from the Miocene of Oregon. Washington, D.C: Smithsonian Institution Press.
- 1 2 Boersma, Alexandra T.; McCurry, Matthew R.; Pyenson, Nicholas D. (May 2017). "A new fossil dolphin Dilophodelphis fordycei provides insight into the evolution of supraorbital crests in Platanistoidea (Mammalia, Cetacea)". Royal Society Open Science. 4 (5) 170022. Bibcode:2017RSOS....470022B. doi:10.1098/rsos.170022. ISSN 2054-5703. PMC 5451807. PMID 28573006.
- ↑ Peredo, Carlos Mauricio; Uhen, Mark D.; Nelson, Margot D. (2018-03-04). "A new kentriodontid (Cetacea: Odontoceti) from the early Miocene Astoria Formation and a revision of the stem delphinidan family Kentriodontidae". Journal of Vertebrate Paleontology. 38 (2) e1411357. Bibcode:2018JVPal..38E1357P. doi:10.1080/02724634.2017.1411357. ISSN 0272-4634. S2CID 89965454.
- 1 2 Coombs, Margery Chalifoux (1979). "Tylocephalonyx, a new genus of North American dome-skulled chalicotheres (Mammalia, Perissodactyla)". Bulletin of the AMNH. 164 (1): 1–64. hdl:2246/1041.
- 1 2 Mayr, Gerald; Goedert, James L. (July 2017). "Oligocene and Miocene albatross fossils from Washington State (USA) and the evolutionary history of North Pacific Diomedeidae". The Auk. 134 (3): 659–671. doi:10.1642/AUK-17-32.1. ISSN 0004-8038. S2CID 89636332.
- 1 2 3 4 5 6 7 8 9 10 11 Welton, Bruce J. (October 1972). "Fossil Sharks in Oregon" (PDF). The Ore Bin. 34 (10): 161–172.
- 1 2 Welton, Bruce J. (2015-08-21). "A New Species of Late Early Miocene Cetorhinus (Lamniformes; Cetorhinidae) from the Astoria Formation of Oregon, and coeval Cetorhinus from Washington and California". Contributions in Science. 523: 67––89. doi:10.5962/p.241294. ISSN 0459-8113. S2CID 242792009.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
- Moore, E. (1963). "Miocene marine mollusks from the Astoria formation in Oregon". Professional Paper. doi:10.3133/PP419. S2CID 127613845.
{{cite book}}: Missing or empty|title=(help) - "Stratigraphy and sedimentation of the Onion Peak area, Clatsop County, Oregon". 1974.
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