Harpersville Formation
31 distinct taxa, from 90 fossil occurrences the Paleobiology Database records under this name, spanning 304–286 Mya.
Texas · US
31 taxa · 90 fossils · 304–286 MyaFiled under the Cisco Group. Members recorded: Belknap ls, Crystal Falls, Saddle Creek ls, Crystal Falls ls, Saddle Creek limestone, Waldrip Shale.
Macrostrat places this rock in the Cisco Group. 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
- Neospirifer dunbari
- Neochonetes granulifer
- Derbyia
- Parajuresania nebrascensis
- Composita subtilita
- Linoproductus prattenianus
- Neochonetes
- Reticulatia huecoensis
- Aviculopinna
- Enteletes hemiplicata
- Wilkingia terminale
- Derbyia wabaunseensis
- Echinaria
- Hystriculina wabashensis
- Linoproductus
- Neospirifer kansasensis
- Punctospirifer kentuckensis
- Amphiscapha muricata
- Astartella
- Aviculopecten
- Composita ovata
- Crurithyris planoconvexa
- Derbyia cymbula
- Echinaria moorei
- Enteletes
- Foraminifera
- Heteropecten vanvleeti
- Kutorginella lasallensis
- Phestia
- Pseudomonotis hawni
- Rhynchopora
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.