Cowlitz Formation
235 distinct taxa, from 516 fossil occurrences the Paleobiology Database records under this name, spanning 41–34 Mya.
Washington, Oregon · US
235 taxa · 516 fossils · 41–34 MyaMacrostrat dates this rock 40–35 Ma. Macrostrat’s own record
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9 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
- Acutostrea idriaensis
- Nuculana
- Surcula washingtoniana
- Dentalium stramineum
- Marcia
- Priscoficus cowlitzensis
- Turritella uvasana
- Bonellitia (Admetula) paucivaricata
- Cadulus (Platyschides) gabbi
- Exilia dickersoni
- Polinices (Euspira) nuciformis
- Bursa washingtoniana
- Calyptraea diegoana
- Mitra washingtoniana
- Neverita (Neverita) globosa
- Perse washingtoniana
- Polinices (Euspira) hotsoni
- Pteria clarki
- Schedocardia brewerii
- Siphonalia (Nassicola) sopenahensis
- Spirocrypta pileum
- Tellina
- Turricula
- Venericor planicosta
- Cominella
- Cominella eocenica
- Melania fettkei
- Naticidae
- Nuculana (Saccella) gabbii
- Pitaria (Lamelliconcha) eocenica
- Rimella elongata
- Sinum obliquum
- Siphonalia (Nassicola) bicarinata
- Solidobalanus (Hesperibalanus) cornwalli
- Thracia dilleri
- Urosalpinx hannibali
- Acrilla (Ferminoscala) berthiaumei
- Acutostrea idriaensis fettkei
- Ancillaria bretzi
- Brachidontes (Brachidontes) cooperi
The 40 most often recorded, of 235.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.