Twin Rivers Formation
22 distinct taxa, from 28 fossil occurrences the Paleobiology Database records under this name, spanning 34–23 Mya.
Washington · US
22 taxa · 28 fossils · 34–23 MyaLoading coastlines…
2 distinct localities, where the rock is now rather than where it was laid down. Tectonics draws the world it belonged to.
When
What has been found
- Conchocele bisecta
- Cyclocardia subtenta
- Lucinoma acutilineata
- Panopea abrupta
- Vertipecten fucanus
- Anadara osmonti
- Bruclarkia
- Chione
- Fulgoraria (Psephaea)
- Katherinella (Katherinella) angustifrons
- Litorhadia astoriana
- Macoma (Rexithaerus) indentata
- Marcia (Marcia)
- Mytilus snohomishensis
- Psammotreta (Leporimetis) rostellata
- Securella clallamensis
- Sinum scopulosum
- Tellina (Olcesia) ocoyana
- Thracia (Homoeodesma) trapezoides
- Thracia schencki
- Turritella oregonensis
- Yoldia (Yoldia) temblorensis
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.