Cedar Valley Formation
36 distinct taxa, from 38 fossil occurrences the Paleobiology Database records under this name, spanning 393–372 Mya.
Iowa, Missouri · US
36 taxa · 38 fossils · 393–372 MyaFiled under the Traverse Group. Members recorded: Rapid, Littleton, Solon, Iowa City, Linwood.
Macrostrat dates this rock 388–363 Ma. Macrostrat’s own record
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8 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
- Botryocrinus thomasi
- Eocaudina septaforaminalis
- Allanella
- Arabellites
- Athyris
- Cranaena
- Cyrtina
- Decadocrinus crassidactylus
- Decadocrinus pachydactylus
- Decadocrinus spinulifer
- Dinichthyidae
- Diopatraites
- Douvillina arcuata
- Eosyringothyris
- Eutaxocrinus gracilis
- Hadrorhynchia
- Halysiocrinus barrisi
- Halysiocrinus elephantinus
- Icriodus
- Icriodus latericrescens
- Icriodus subterminus
- Lorangerella
- Lumbriconereites
- Megistocrinus pernodosus
- Onychodus
- Pentamerella
- Philoxene cyclostomus
- Polygnathus decorosa
- Polygnathus xylus
- Pseudoatrypa
- Pseudopalmula
- Ptyctodopsis menzeli
- Ptyctodus
- Rhynchodus
- Semitextularia
- Strophomena (Strophodonta)
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.