Shedhorn Formation
47 distinct taxa, from 75 fossil occurrences the Paleobiology Database records under this name, spanning 267–260 Mya.
Wyoming, Montana · US
47 taxa · 75 fossils · 267–260 MyaMembers recorded: Upper, Lower.
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12 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
- Cyrtorostra varicostata
- Aviculopecten
- Euphemites
- Orbiculoidea
- Osteichthyes
- Schizodus bifidus
- Trepostomata
- Derbyia
- Fenestrata
- Lingula
- Lyroschizodus oklahomensis
- Nuculopsis poposiensis
- Polidevcia obesa
- Procostatoria sexradiata
- Scaphellina concinna
- Schizodus
- Stutchburia
- Warthia
- Acanthopecten
- Acanthopecten coloradoensis
- Aviculopecten kaibabensis
- Bathymyonia
- Bathymyonia nevadensis
- Bellerophon deflectus
- Bellerophontoidea
- Chonetes
- Composita
- Echinauris
- Euphemitopsis multinodosa
- Euphemitopsis paucinodosus
- Euphemitopsis subpapillosa
- Heteropecten vanvleeti
- Orbiculoidea utahensis
- Orthonema
- Plagioglypta
- Porifera
- Prodentalium canna
- Pseudopermophorus annettae
- Retispira
- Rugosa
The 40 most often recorded, of 47.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.