Alisitos Formation
125 distinct taxa, from 180 fossil occurrences the Paleobiology Database records under this name, spanning 121–101 Mya.
Baja California · MX
125 taxa · 180 fossils · 121–101 MyaMembers recorded: upper, lower.
Macrostrat dates this rock 121–101 Ma. Macrostrat’s own record
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4 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
- Nerinea (Plesioptygmatis) tomasensis
- Caprinuloidea
- Montlivaltia
- Plicatula allisoni
- Lenticulina
- Montastraea
- Nerinea (Plesioptygmatis) bosei
- Nerinella parallela
- Nodosaria
- Notoscabrotrigonia stolleyi
- Pyrazus (Echinobathra) durhami
- Actaeonella fusiformis
- Alamirifica harrissi
- Anchura (Perissoptera) hannai
- Aptyxiella (Aptyxiella) subula
- Astrocoenia
- Cimolithium eleanorae
- Corsania (Corsania) allisoni
- Decapoda
- Exogyra quitmanensis
- Exogyra yabei
- Gryphaea wardi
- Natica importuna
- Nerinea (Plesioptygmatis) pseudoconvexa
- Placosmilia
- Plicatula
- Pseudonerinea stirtoni
- Reptomulticava
- Thalamocaeniopsis neocomiensis
- Turritella seriatimgranulata
- Tylostoma allisoni
- Uchauxia beali
- Uchauxia kirki
- Vaginulina
- Actaeonella parvus
- Agnathodonta brooksi
- Ammodiscus incertus
- Anchura (Anchura) andersoni
- Angaria (Angaria) gwynae
- Astacolus
The 40 most often recorded, of 125.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.