Racine Formation
248 distinct taxa, from 1,071 fossil occurrences the Paleobiology Database records under this name, spanning 443–423 Mya.
Wisconsin, Illinois, Iowa · US
248 taxa · 1,071 fossils · 443–423 MyaFiled under the Salina Group. Members recorded: lower.
Macrostrat dates this rock 428–422 Ma. Macrostrat’s own record
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10 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
- Rugosa
- Bryozoa
- Eucalyptocrinites
- Pseudooneotodus beckmanni
- Panderodus unicostatus
- Antirhynchonella
- Periechocrinus
- Isorthis
- Resserella canalis
- Brachyprion (Protomegastrophia) profunda
- Reticulatrypa
- Siphonocrinus
- Dicoelosia biloba
- Dimerocrinites
- Leangella
- Amphicyrtoceras
- Dalejina
- Dolerorthis
- Harpidium (Isovella)
- Howellella
- Plectodonta
- Anastrophia
- Calliocrinus
- Crotalocrinites
- Meristina
- Stegerhynchus
- Wurmiella excavata
- Astraeospongium
- Calymene celebra
- Cyrtorizoceras
- Gastropoda
- Parapisocrinus
- Atrypa
- Atrypina
- Caryocrinites
- Cyrtia
- Dawsonoceras
- Kionoceras
- Lecanocrinus
- Macrostylocrinus
The 40 most often recorded, of 248.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.