La Difunta Formation
51 distinct taxa, from 60 fossil occurrences the Paleobiology Database records under this name, spanning 267–254 Mya.
Coahuila · MX
51 taxa · 60 fossils · 267–254 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
- Richthofenioidea
- Cibolites waageni
- Hercosia uddeni
- Hustedia mexicana
- Leiorhynchus
- Polydiexodina shumardi
- Reticulariina laxa
- Roadoceras haacki
- Anisopyge perannulata
- Attenuatella attenuata
- Bactrites mexicanus
- Bitaunioceras coahuilense
- Chaunactis
- Chonetes deliciasensis
- Composita
- Demarezites quirozii
- Derbyia nasuta
- Ditomopyge whitei
- Eoaraxoceras ruzhencevi
- Heterelasma shumardianum
- Hustedia
- Kingoceras kingi
- Leiorhynchoidea amygdaloidea
- Leiorhynchoidea laevis
- Leiorhynchoidea schucherti
- Liosotella rugosa
- Metacrimites dunbari
- Neochonetes (Neochonetes) foshagi
- Orbiculoidea ovalis
- Paraceltites altudensis
- Paraceltites rectangularis
- Paranorella imperialis
- Petasmatherus pusillus
- Plectelasma guadalupense
- Polydiexodina capitanensis
- Propinacoceras
- Punctospiriferidae
- Rauserella erratica
- Roadoceras roadense
- Scytinoptera mexicana
The 40 most often recorded, of 51.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.