Yaquina Formation
| Yaquina Formation | |
|---|---|
| Stratigraphic range: Chattian | |
| Type | Geological formation |
| Location | |
| Region | Lincoln County, Oregon |
| Country |  United States |
| Type section | |
| Named for | Yaquina Head |
The Yaquina Formation is a
period
.
Fossil content
Mammals
Carnivorans
| Carnivorans reported from the Yaquina Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Enaliarctos | E. barnesi | South of Beaver Creek, Lincoln County, Oregon.[1] | mandibular rami).[1]
|
A pinnipedimorph. | |
| E. sp., cf. E tedfordi | Ona Beach, Lincoln County, Oregon.[2]
|
UCMP 253400 (associated right mandible, thoracic vertebra & 2 ribs).[2]
|
A pinnipedimorph. | ||
Cetaceans
Cetaceans reported from the Yaquina Formation
| |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Aetiocetus | A. cotylaveus | Lincoln County, Oregon.[3] | An aetiocetid whale. |  | |
| A. weltoni | Ona Beach, Lincoln County, Oregon.[4]
|
UCMP 122900.[4] | An aetiocetid whale. |  | |
Desmostylians
| Desmostylians reported from the Yaquina Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Behemotops | B. emlongi | Seal Rock State Wayside, Lincoln County, Oregon.[5]
|
USNM 244033 & 186889.[5] | ||
| Cornwallius | C. sookensis | "2 skulls, 4 partial mandibles, 4 isolated teeth, an | A desmostylid. | ||
Fish
Bony fish
Bony fish reported from the Yaquina Formation
| |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Paleobathygadus | P. yaguinensis | Southwest edge of Waldport.[7] | A scale.[7] | A bathygadid also known from the Toledo Formation. | |
| Promacrurus | P. alseanus | South side of Alsea Bay.[7] | A scale.[7] | A macrourid .
|
|
| P. oregonensis | Southwest edge of Walport.[7] | Scales.[7] | A macrourid .
|
||
| Pyknolepidus | P. macrospinosus | South side of Alsea Bay.[7] | A scale.[7] | A macrourid .
|
|
Sharks
| Sharks reported from the Yaquina Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Megachasma | M. applegatei | Upper member, Ona Beach State Park, Lincoln County, Oregon.[8]
|
2 teeth (LACM 122120 and 122121).[8] | A megamouth shark also known from the Jewett Sand, Skooner Gulch & Nye Mudstone formations. | |
See also
References
- ^ hdl:10088/19145.
- ^ S2CID 55978096.
- ^ Emlong, Douglas (October 1966). "A NEW ARCHAIC CETACEAN FROM THE OLIGOCENE OF NORTHWEST OREGON". Bulletin of the Museum of Natural History, University of Oregon (3): 1–51.
- ^ S2CID 20615374.
- ^ a b Domning, Daryl P.; Mckenna, Malcolm C.; Ray, Clayton Edward (1986). Two new Oligocene desmostylians and a discussion of tethytherian systematics. City of Washington: Smithsonian Institution Press.
- S2CID 83759776.
- ^ JSTOR 1300292.
- ^ S2CID 83949683.
Sources
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.