Thaynes Formation
276 distinct taxa, from 990 fossil occurrences the Paleobiology Database records under this name, spanning 252–247 Mya.
Idaho, Utah, Nevada, Montana · US
276 taxa · 990 fossils · 252–247 MyaMembers recorded: Portneuf, Ross Fork.
Macrostrat dates this rock 252–247 Ma. Macrostrat’s own record
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69 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
- Meekoceras gracilitatis
- Pseudosageceras multilobatum
- Aspenites acutus
- Columbites parisianus
- Jeanbesseiceras jacksoni
- Idahocolumbites cheneyi
- Obnixia thaynesiana
- Juvenites thermarum
- Parussuria compressa
- Promyalina
- Lanceolites compactus
- Leptochondria occidanea
- Owenites koeneni
- Paranannites aspenensis
- Anaflemingites silberlingi
- Arctoceras tuberculatum
- Bajarunia pilata
- Guodunites hooveri
- Xenoceltites spencei
- Dieneroceras dieneri
- Inyoites oweni
- Permophorus
- Churkites noblei
- Eumorphotis multiformis
- Preflorianites toulai
- Vex semisimplex
- Bakevellia
- Confusionella loczyi
- Juvenites septentrionalis
- Leptochondria
- Silberlingeria bearlakensis
- Unionites
- Wyomingites aplanatus
- Cordillerites angulatus
- Euflemingites cirratus
- Eumorphotis
- Hedenstroemia kossmati
- Inyoites beaverensis
- Rudolftruempyiceras apostolicum
- Tirolites smithi
The 40 most often recorded, of 276.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.