Hertha Formation
47 distinct taxa, from 80 fossil occurrences the Paleobiology Database records under this name, spanning 315–299 Mya.
Missouri, Kansas, Oklahoma, Illinois · US
47 taxa · 80 fossils · 315–299 MyaFiled under the Kansas City Group. Members recorded: Mound City Shale.
Macrostrat places this rock in the Kansas City Group. Macrostrat’s own record
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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
- Brachiopoda
- Crurithyris
- Gastropoda
- Rhombopora
- Bivalvia
- Calamospora
- Crinoidea
- Cyclogranisporites
- Florinites
- Apiculatasporites
- Bryozoa
- Chonetinella
- Glaphyrites
- Lophamplexus
- Palaeoneilo
- Plagioglypta
- Triquitrites
- Vertebrata
- Ammonoidea
- Astartella
- Bisatoceras
- Cyclozyga
- Derbyia
- Donaldina
- Endosporites
- Euphemites
- Hoarepora parrishi
- Hustedia
- Hyolitha
- Marginifera
- Meekopinna illinoiensis
- Nucula
- Orbiculoidea
- Phestia
- Phricodothyris
- Potonieisporites
- Punctatisporites
- Punctatosporites
- Punctospirifer
- Raistrickia
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.