Aycross Formation
90 distinct taxa, from 146 fossil occurrences the Paleobiology Database records under this name, spanning 56–46 Mya.
Wyoming · US
90 taxa · 146 fossils · 56–46 MyaLoading coastlines…
4 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
- Microsyops elegans
- Hyopsodus paulus
- Hyrachyus modestus
- Pseudotomus robustus
- Trogosus
- Notharctus
- Orohippus
- Paramyidae
- Eotitanops gregoryi
- Thisbemys corrugatus
- Antiacodon pygmaeus
- Apatemys bellulus
- Aycrossia lovei
- Hyopsodus
- Hyrachyus eximius
- Macrocranion
- Palaeictops bridgeri
- Palaeosyops fontinalis
- Patriofelis
- Reithroparamys delicatissimus
- Adapisoricidae
- Alveojunctus minutus
- Anaptomorphini
- Bathyopsis
- Bridgeremys pusilla
- Carnivora
- Crocodylia
- Didelphidae
- Didelphodontinae
- Elwynella oreas
- Eotitanops borealis
- Equidae
- Erinaceidae
- Gazinius amplus
- Hapalorestes lovei
- Helaletes intermedius
- Helaletes nanus
- Herpetotheriidae
- Herpetotherium knighti
- Herpetotherium marsupium
The 40 most often recorded, of 90.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.