Chriacus pelvidens

via iDigBio · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- ChriacusPBDB
- Diet
- omnivorePBDB, for Chriacus
- Life habit
- scansorialPBDB, for Chriacus
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 5.9 million years on record.
Every occurrence read is dated to somewhere between 63.4 Mya and 57.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
21 occurrences of Chriacus pelvidens on record, most of them in the Paleocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
21 occurrences- Paleocene100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
5 formations
- Nacimiento Formation10
- Fort Union Formation5
- Paskapoo Formation1
- Evanston Formation1
- Melville Formation1
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The named rock units Chriacus pelvidens has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Chriacus pelvidens and its relatives
PaleoceneWhere Chriacus pelvidens and its relatives were recorded in the Paleocene.
Found in the same rock
255 taxa- Anisonchus sectorius10 sites
- Periptychus carinidens10 sites
- Promioclaenus acolytus10 sites
- Psittacotherium multifragum10 sites
- Tetraclaenodon puercensis10 sites
- Tricentes subtrigonus10 sites
- Mixodectes malaris9 sites
- Protoselene opisthacus9 sites
- Chriacus baldwini8 sites
- Promioclaenus lemuroides8 sites
- Acmeodon secans7 sites
- Arctocyon ferox7 sites
- Deltatherium fundaminis7 sites
- Goniacodon levisanus7 sites
- Litomylus dissentaneus7 sites
- Mioclaenus turgidus7 sites
- Protictis haydenianus7 sites
- Diacodon puercensis6 sites
- Ectocion collinus5 sites
- Arctocyon corrugatus4 sites
- Bessoecetor septentrionalis4 sites
- Conoryctella pattersoni4 sites
- Coriphagus encinensis4 sites
- Dissacus navajovius4 sites
The Paleobiology Database records 20 sites for Chriacus pelvidens, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
12 references- Paleocene vertebrate paleontology of the San Juan Basin, New Mexico6
- The Kutz Canyon Local Fauna, Torrejonian (Middle Paleocene) of the San Juan Basin, New Mexico;3
- Magnetic polarity stratigraphy and biostratigraphy of middle-late Paleocene continental deposits of south-central Montana2
- Palaeocene mammalian faunas of the Bison Basin in south-central Wyoming2
- The biogeographic origins of late Paleocene - early Eocene mammalian immigrants to the Western Interior of North America1
- Late Cretaceous and Paleocene mammal localities of southern Alberta1
- Mammalian Fauna from Douglass Quarry, Earliest Tiffanian (Late Paleocene) of the Eastern Crazy Mountain Basin, Montana1
- Mammalian paleontology of the Fort Union Formation (Paleocene), eastern Rock Springs Uplift, Sweetwater County, Wyoming1
- Swain Quarry of the Fort Union Formation, Middle Paleocene (Torrejonian), Carbon County, Wyoming: geologic setting and mammalian fauna1
- Paleontology and geology of the Badwater Creek area, central Wyoming. Pt. 10. A late Paleocene mammal fauna from the Shotgun Member of the Fort Union Formation1
- A new occurrence of Paleocene mammals in the Evanston Formation, southwestern Wyoming1
- A new multituberculate from the Paleocene Torrejon fauna of New Mexico1
Each of the 21 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Chriacus pelvidens
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itChriacus through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Cope 1881)