Kaibab Formation
166 distinct taxa, from 644 fossil occurrences the Paleobiology Database records under this name, spanning 299–252 Mya.
Arizona, Utah, Nevada · US
166 taxa · 644 fossils · 299–252 MyaMembers recorded: Fossil Mountain, "Alpha", Alpha, Harrisburg, Gamma, "alpha".
Macrostrat dates this rock 295–252 Ma. Macrostrat’s own record
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61 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
- Peniculauris bassi
- Crinoidea
- Stenolaemata
- Dyoros (Dyoros) subliratus
- Archaeocidaris
- Bellerophon
- Composita
- Dyoros kaibabensis
- Squamularia
- Derbyia
- Echinauris
- Plagioglypta
- Schizodus
- Aviculopecten
- Bicorbis arizonica
- Delaria sevilloidia
- Euphemites
- Rugatia occidentalis
- Waagenoconcha
- Allorisma
- Novoameura mckeei
- Bivalvia
- Donaldospira geminocarinata
- Gastropoda
- Lophophyllum
- Spiriferina
- Delaria snowi
- Euomphalus
- Glabrocingulum coronatum
- Kaibabvenator swiftae
- Leptodesma
- Anisopyge inornata
- Astartella
- Aviculopecten kaibabensis
- Bransonella tribula
- Grammatodon (Cosmetodon) politus
- Kaibabella curvilenata
- Marginifera
- Meekella
- Myalina
The 40 most often recorded, of 166.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.