Scales Shale
136 distinct taxa, from 314 fossil occurrences the Paleobiology Database records under this name, spanning 451–446 Mya.
Illinois, Iowa, Iowa, Minnesota, Illinois, Iowa, Wisconsin · US
136 taxa · 314 fossils · 451–446 MyaFiled under the Maquoketa Group. Members recorded: Elgin, Clermont.
Macrostrat places this rock in the Maquoketa Group, and dates it 450–448 Ma. 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
- Zygobolboides
- Endoceras
- Primitiella
- Thaerodonta recedens
- Megamyonia unicostata
- Paucicrura corpulenta
- Plaesiomys proavita
- Anaspyroceras
- Austinella kankakensis
- Ctenobolbina
- Glyptorthis bellarugosa
- Heterorthina emacerata
- Hiscobeccus capax
- Isotelus susae
- Orbiculoidea
- Plaesiomys subquadratus
- Rafinesquina deltoidea
- Rafinesquina trentonensis
- Strophomena trilobata
- Thelecalymene mammillata
- Zygospira modesta
- Armenoceras
- Bollia
- Carabocrinus
- Dendrocrinus
- Diceromyonia
- Eoplectodonta
- Eunema quadrisulcata
- Flexicalymene (Flexicalymene) senaria
- Glyptorthis insculpta
- Hebertella occidentalis
- Hormotoma gracilis
- Hypsiptycha anticostiensis
- Kionoceras
- Lingulops
- Onniella
- Paucicrura rogata
- Porocrinus
- Primitia
- Sinuites subcompressa
The 40 most often recorded, of 136.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.