Alamosa Formation
48 distinct taxa, from 203 fossil occurrences the Paleobiology Database records under this name, spanning 0.8–0.1 Mya.
Colorado · US
48 taxa · 203 fossils · 0.8–0.1 MyaMacrostrat dates this rock 5.3–0 Ma. Macrostrat’s own record
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1 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
- Ambystoma tigrinum
- Geomys
- Rana
- Spea bombifrons
- Microtus paroperarius
- Thamnophis
- Microtus meadensis
- Bufo
- Bufo cognatus
- Equus
- Leporidae
- Heterodon nasicus
- Rana catesbeiana
- Reithrodontomys
- Sceloporus undulatus
- Thamnophis sirtalis
- Amblystoma
- Bufo woodhousei
- Holbrookia
- Spermophilus tridecemlineatus
- Equus mexicanus
- Pituophis melanoleucus
- Urocitellus richardsonii
- Antilocapridae
- Anura
- Aythya affinis
- Callospermophilus lateralis
- Camelops
- Canis
- Crotalus viridis
- Cynomys
- Dipodomys ordii
- Fulica americana
- Lacertilia
- Mictomys meltoni
- Neotoma ozarkensis
- Ondatra annectens
- Perognathinae
- Peromyscus
- Phenacomys
The 40 most often recorded, of 48.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.