Chriacus baldwini

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.
24 occurrences of Chriacus baldwini 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
24 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
8 formations
- Nacimiento Formation8
- "Fort Union" (= Lebo) Formation5
- North Horn Formation3
- Fort Union Formation3
- Black Peaks Formation · Tornillo Group2
- Paskapoo Formation1
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The named rock units Chriacus baldwini has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Chriacus baldwini and its relatives
PaleoceneWhere Chriacus baldwini and its relatives were recorded in the Paleocene.
Found in the same rock
276 taxa- Anisonchus sectorius14 sites
- Tetraclaenodon puercensis12 sites
- Tricentes subtrigonus12 sites
- Promioclaenus acolytus10 sites
- Periptychus carinidens9 sites
- Promioclaenus lemuroides9 sites
- Chriacus pelvidens8 sites
- Protoselene opisthacus8 sites
- Psittacotherium multifragum8 sites
- Protictis haydenianus7 sites
- Deltatherium fundaminis5 sites
- Goniacodon levisanus5 sites
- Mimetodon silberlingi5 sites
- Mioclaenus turgidus5 sites
- Mixodectes malaris5 sites
- Peradectes5 sites
- Acmeodon secans4 sites
- Adunator ladae4 sites
- Arctocyon corrugatus4 sites
- Catopsalis fissidens4 sites
- Haplaletes disceptatrix4 sites
- Haploconus angustus4 sites
- Intyrictis vanvaleni4 sites
- Litaletes disjunctus4 sites
The Paleobiology Database records 23 sites for Chriacus baldwini, 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
9 references- Synonymies and reidentifications of North American fossil mammals10
- 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;2
- New late Paleocene (late middle Tiffanian) mammals from the Roche Percée local fauna, south-eastern Saskatchewan, Canada1
- Late Cretaceous and Paleocene mammal localities of southern Alberta1
- Paleontology and biostratigraphy of lower part of Polecat Bench Formation, southern Bighorn Basin, Wyoming1
- Mammalian paleontology of the Fort Union Formation (Paleocene), eastern Rock Springs Uplift, Sweetwater County, Wyoming1
- Dragonian mammals and Paleocene magnetic polarity stratigraphy, North Horn Formation, central Utah1
- The mammalian faunas of the Paleocene of central Utah, with notes on the geology1
Each of the 24 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 content2

Picture of Chriacus baldwini
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Chriacus baldwini · MCZ:VP:VPM-20676
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 1882)