San Francisquito Formation
75 distinct taxa, from 134 fossil occurrences the Paleobiology Database records under this name, spanning 101–56 Mya.
California · US
75 taxa · 134 fossils · 101–56 MyaMacrostrat dates this rock 67–56 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
- Turritella infragranulata pachecoensis
- Bivalvia
- Gastropoda
- Mesalia martinezensis
- Teredo
- Brachysphingus gibbosus
- Metacerithium
- Ostrea
- Roudairia squiresi
- Sulcobuccinum maritimum
- Turritella webbi
- Anchura baptos
- Cretalamna appendiculata
- Cucullaea mathewsonii
- Cucullaea morani
- Echinoidea
- Flabellum cuneiforme
- Foraminifera
- Gyrodes
- Nemocardium (Nemocardium) linteum
- Palaeopsammia zitteli
- Perissitys stewarti
- Pitar
- Ringicula (Ringicula) pinguis
- Saxituberosa fons
- Scleractinia
- Turritella
- Turritella buwaldana
- Turritella chaneyi orienda
- Turritella peninsularis quaylei
- Acila
- Acteon merriami
- Amauropsis martinezensis
- Brachysphingus sinuatus
- Calliostoma
- Campanile greenellum
- Catopygus cajonensis
- Cidaris
- Claibornites (Codalucina) muirensis
- Costacopluma squiresi
The 40 most often recorded, of 75.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.