Gower Formation
60 distinct taxa, from 85 fossil occurrences the Paleobiology Database records under this name, spanning 443–423 Mya.
Iowa, Illinois · US
60 taxa · 85 fossils · 443–423 MyaMembers recorded: Brady, LeClaire, Anamosa.
Macrostrat dates this rock 427–423 Ma. Macrostrat’s own record
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5 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
- Nautiloidea
- Gastropoda
- Halysites
- Leptaena
- Rugosa
- Atrypa
- Dimerocrinites
- Dinobolus
- Echinodermata
- Fardenia (Coolinia)
- Favosites
- Mytilarca
- Periechocrinus
- Pycnostylus
- Tabulata
- Tremanotus
- Trimerella
- Amphicoelia
- Bivalvia
- Bumastus
- Calliocrinus
- Caryocrinites
- Crinoidea
- Crotalocrinites
- Cyclonema
- Cyrtioidea
- Cyrtodonta
- Eospirifer
- Eucalyptocrinites
- Euomphalidae
- Fletcheria
- Harpidium
- Harpidium (Isovella)
- Hedeina
- Heliolites
- Hyattidina
- Icthyocrinus
- Leperditia
- Leperditiidae
- Loxonematidae
The 40 most often recorded, of 60.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.