Tuxedni Formation
48 distinct taxa, from 140 fossil occurrences the Paleobiology Database records under this name, spanning 171–162 Mya.
Alaska · US
48 taxa · 140 fossils · 171–162 MyaMembers recorded: Bowser, upper siltstone.
Macrostrat dates this rock 171–165 Ma. Macrostrat’s own record
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14 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
- Arctocephalites (Cranocephalites)
- Arctocephalites (Cranocephalites) costidensus
- Belemnitida
- Pleuromya
- Arctocephalites (Cranocephalites) pompeckji
- Inoceramus
- Meleagrinella
- Arctocephalites alticostus
- Camptonectes
- Grammatodon
- Iniskinites intermedius
- Trigonia
- Astarte
- Gryphaea
- Ostrea
- Gastropoda
- Holcophylloceras
- Kepplerites
- Phylloceras (Macrophylloceras) grossicostatum
- Thracia
- Xenocephalites vicarius
- Arctocephalites
- Bullatimorphites (Kheraiceras)
- Calliphylloceras freibrocki
- Inoceramus porrectus
- Oxytoma
- Parallelodon
- Parareineckeia shelikofana
- Trigonarca tumida
- Cercomya
- Chinitnites parviformus
- Cobbanites talkeetnanus
- Isocyprina
- Kepplerites (Seymourites) tychonis
- Lucina
- Modiolus
- Myophorella dawsoni
- Myophorella devexa
- Oecotraustes (Paroecotraustes)
- Ophthalmosaurinae
The 40 most often recorded, of 48.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.