Bullion Creek Formation
45 distinct taxa, from 48 fossil occurrences the Paleobiology Database records under this name, spanning 61–58 Mya.
North Dakota · US
45 taxa · 48 fossils · 61–58 MyaMacrostrat places this rock in the Fort Union Group, and dates it 58–57 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
- Champsosaurus gigas
- Amphisbaenidae
- Anguidae
- Anura
- Azolla
- Baenidae
- Borealosuchus formidabilis
- Bryanictis microlestes
- Champsosaurus
- Champsosaurus tenuis
- Cupressaceae
- Dakotornis cooperi
- Ectocion
- Emydidae
- Entomolestes
- Gomphaeschna schrankii
- Graculavidae
- Ignacius
- Labidolemur soricoides
- Leptacodon
- Nelumbium
- Neoplagiaulax hazeni
- Neoplagiaulax hunteri
- Neoplagiaulax mckennai
- Palaeoryctes
- Pararyctes
- Peradectes
- Phenacodus
- Phenacolemurinae
- Piceoerpeton willwoodense
- Plesiadapis
- Plesiadapis fodinatus
- Presbyornis isoni
- Propalaeosinopa
- Protochelydra zangerli
- Provaranosaurus
- Ptilodus
- Ptilodus wyomingensis
- Scapherpeton
- Thryptacodon
The 40 most often recorded, of 45.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.