Sierra de Santa Roas Formation
39 distinct taxa, from 62 fossil occurrences the Paleobiology Database records under this name, spanning 193–183 Mya.
Sonora · MX
39 taxa · 62 fossils · 193–183 MyaMembers recorded: Middle.
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3 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
- Weyla alata
- Frenguelliella poultoni
- Pinna folium
- Agerchlamys wunschae
- Antiquilima nodulosa
- Ceratomya concentrica
- Entolium (Entolium) corneolum
- Gervillella leesi
- Grammatodon sulcatus
- Lucinidae
- Modiolus
- Modiolus giganteus
- Myoconcha neuquena
- Neocrassina gueuxi
- Plagiostoma
- Pleuromya uniformis
- Protocardia luggudensis
- Weyla bodenbenderi
- Weyla titan
- Cardinia
- Ceratomya petricosa
- Cercomya (Capillimya) peruviana
- Ctenostreon
- Eopecten velatus
- Gervillella araucana
- Gervillia
- Goniomya
- Groeberella
- Isocyprina ancatruzi
- Pachymya
- Parallelodon hirsonensis
- Pholadomya (Pholadomya) fidicula
- Pholadomya (Pholadomya) idea
- Pholadomya (Pholadomya) voltzi
- Plicatula
- Protocardia
- Protocardia striatula
- Pseudolimea
- Weyla (Lywea) unca
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.