Cutoff Formation
122 distinct taxa, from 188 fossil occurrences the Paleobiology Database records under this name, spanning 283–267 Mya.
Texas · US
122 taxa · 188 fossils · 283–267 MyaMembers recorded: Williams Ranch, El Centro, Shumard.
Macrostrat dates this rock 299–252 Ma. Macrostrat’s own record
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5 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
- Isacrodus marthae
- Paraceltites elegans
- Stethacanthulus decorus
- Cooleyella amazonensis
- Texoceras texanum
- Alilepis texasensis
- Peritrochia erebus
- Apachella pseudostrigillata
- Glikmanius myachkovensis
- Sphenacanthus
- Adamantina foliacea
- Aulosteges
- Cladodontomorphi
- Composita nucella
- Cooleyella
- Ctenacanthidae
- Cyclacantharia kingorum
- Enteletes
- Hustedia decollatensis
- Kungurodus
- Nucula
- Parafusulina
- Phrenophoria corpulenta
- Platysomidae
- Pleuronautilus praecursor
- Rauserella
- Reifella lata
- Rhynchopora
- Skinnerina fusiformis
- Skinnerina mildredae
- Skinnerina rotundata
- Stethacanthulus
- Symmoriiformes
- Acrolepididae
- Agathiceras girtyi
- Allorhynchus
- Ananias labrectus
- Ananias permianus
- Anemonaria sublaevis
- Anisopyge perannulata
The 40 most often recorded, of 122.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.