Bloyd Formation
101 distinct taxa, from 191 fossil occurrences the Paleobiology Database records under this name, spanning 330–307 Mya.
Arkansas, Oklahoma · US
101 taxa · 191 fossils · 330–307 MyaFiled under the Morrow Group. Members recorded: Brentwood Limestone, Baldwin Coal, Brentwood, Wapanucka Limestone, Brentwood Shale, Trace Creek Shale, Kessler Limestone, Woolsey, Conglomerate, Kessler Limeston, Pre-Brentwood Shale, Post-Brentwood Shale.
Macrostrat dates this rock 320–319 Ma. Macrostrat’s own record
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24 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
- Diphuicrinus croneisi
- Arkacrinus dubius
- Endelocrinus matheri
- Metutharocrinus cockei
- Anchicrinus planulatus
- Cibolocrinus tumidus
- Densosporites
- Paracromyocrinus oklahomensis
- Phaneroceras kesslerense
- Pseudorthoceras knoxense
- Affinocrinus progressus
- Anchicrinus rugosus
- Cristatisporites
- Eupachycrinus
- Florinites
- Granulatisporites
- Affinocrinus
- Apiculatasporites
- Cibolocrinus bellus
- Dicromyocrinus optimus
- Diphuicrinus mammifer
- Gastrioceras
- Gastrioceras (Lissogastrioceras) fittsi
- Heliosocrinus
- Hydreionocrinus
- Laevigatosporites
- Lasanocrinus minutus
- Lasanocrinus nodatus
- Lasanocrinus strigosus
- Lycospora
- Metacoceras
- Metutharocrinus spinifer
- Palmerocrinus profundus
- Perimestocrinus teneris
- Phaneroceras compressum
- Scytalocrinus crassibrachiatus
- Strongylocrinus hansoni
- Affinocrinus grandis
- Affinocrinus normalis
- Ampelocrinus convexus
The 40 most often recorded, of 101.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.