Arkadelphia Formation
35 distinct taxa, from 36 fossil occurrences the Paleobiology Database records under this name, spanning 72–66 Mya.
Arkansas · US
35 taxa · 36 fossils · 72–66 MyaMacrostrat dates this rock 68–67 Ma. Macrostrat’s own record
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2 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
- Atractosteus
- Aulopiformes
- Baculites
- Beryciformes
- Carcharias holmdelensis
- Cylindracanthus ornatus
- Dasyatis
- Discoscaphites iris
- Discoscaphites minardi
- Enchodus
- Enchodus ferox
- Enchodus gladiolus
- Galeorhinus girardoti
- Hadrodus priscus
- Ischyrhiza mira
- Lenticulina
- Lepisosteiformes
- Lepisosteus
- Lithraphidites quadratus
- Odontaspis aculeatus
- Paralbula casei
- Plicatoscyllium derameei
- Plicatoscyllium lehneri
- Ptychotrygon vermiculata
- Pycnodontiformes
- Raja farishi
- Rhinobatos casieri
- Rhombodus binkhorsti
- Schizorhiza stromeri
- Sclerorhynchus
- Serratolamna serrata
- Squalicorax kaupi
- Squatina (Cretascyllium) hassei
- Teleostei
- Texatrygon avonicola
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.