Hess Formation
201 distinct taxa, from 419 fossil occurrences the Paleobiology Database records under this name, spanning 290–274 Mya.
Texas · US
201 taxa · 419 fossils · 290–274 MyaMembers recorded: Taylor Ranch.
Macrostrat dates this rock 286–280 Ma. Macrostrat’s own record
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6 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
- Antronaria transversa
- Oncosarina whitei
- Rhipidomella hessensis
- Peniculauris imitata
- Hustedia
- Limbella
- Thamnosia silicica
- Acosarina minuta
- Antronaria speciosa
- Coopericus undatus
- Enteletes subcircularis
- Peniculauris ivesi
- Dielasma longisulcatum
- Meekella hessensis
- Trigonoproductus inexpectans
- Composita
- Acritosia peculiaris
- Composita subtilita
- Echinauris
- Edriosteges medlicottianus
- Enteletes dumblei
- Eolyttonia
- Hercosia uddeni
- Meekella attenuata
- Rigrantia hessensis
- Rugaria hessensis
- Spyridiophora reticulata
- Stenoscisma venustum
- Cassianoides kingorum
- Chondronia ningula
- Composita apsidata
- Composita bucculenta
- Coopericus angustus
- Fistuliporidae
- Girtyocoelia
- Meekella
- Omphalotrochus hessensis
- Paraduplophyllum (Vacoea) amplexoides amplexoides
- Paraperrinites subcumminsi
- Perrinites hilli
The 40 most often recorded, of 201.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.