Ectocion collinus

via iDigBio · CC0 · 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
- EctocionPBDB
- Diet
- herbivorePBDB, for Phenacodontidae
- Life habit
- ground dwellingPBDB, for Phenacodontidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 760 thousand years on record.
The record covers at least 61.66 Mya to 60.9 Mya. No occurrence read is dated outside 66 Mya to 57.5 Mya.
26 occurrences of Ectocion collinus 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
26 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
- Fort Union Formation6
- Paskapoo Formation6
- "Fort Union No. 3" (= Melville) Formation3
- Hoback Formation1
- Slope Formation1
- Wasatch Formation1
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The named rock units Ectocion collinus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.
Ectocion collinus and its relatives
PaleoceneWhere Ectocion collinus and its relatives were recorded in the Paleocene.
Found in the same rock
228 taxa- Plesiadapis rex11 sites
- Ptilodus11 sites
- Neoplagiaulax hunteri8 sites
- Thryptacodon australis8 sites
- Bessoecetor septentrionalis7 sites
- Carpodaptes hazelae7 sites
- Litomylus dissentaneus7 sites
- Neoplagiaulax7 sites
- Elpidophorus elegans6 sites
- Ignacius frugivorus6 sites
- Litocherus lacunatus6 sites
- Peradectes elegans6 sites
- Phenacodus grangeri6 sites
- Arctocyon ferox5 sites
- Chriacus pelvidens5 sites
- Ectypodus5 sites
- Mesodma pygmaea5 sites
- Palaeoryctes punctatus5 sites
- Pantodonta5 sites
- Pararyctes pattersoni5 sites
- Anconodon cochranensis4 sites
- Chriacus4 sites
- Leptacodon tener4 sites
- Litocherus zygeus4 sites
The Paleobiology Database records 26 sites for Ectocion collinus, 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
11 references- Synonymies and reidentifications of North American fossil mammals14
- Evolution of Paleocene and Eocene Phenacodontidae (Mammalia, Condylarthra)2
- Late Cretaceous and Paleocene mammal localities of southern Alberta2
- Horolodectidae: a new family of unusual eutherians (Mammalia: Theria) from the Palaeocene of Alberta, Canada1
- A new middle Paleocene (early Tiffanian) mammalian fauna from the Overland Member of the Fort Union Formation, Great Divide Basin, Wyoming, U.S.A.1
- The Tiffanian Land-Mammal Age (middle and late Paleocene) in the northern Bighorn Basin, Wyoming1
- Hunter, 19991
- Paleocene mammals and faunal analysis of the Chappo Type Locality (Tiffanian), Green River Basin, Wyoming1
- Geologic setting of a new Paleocene mammal locality in the northern Powder River basin, Montana1
- Mammalian Fauna from Douglass Quarry, Earliest Tiffanian (Late Paleocene) of the Eastern Crazy Mountain Basin, Montana1
- Palaeocene mammalian faunas of the Bison Basin in south-central Wyoming1
Each of the 26 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 Ectocion collinus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Ectocion collinus was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itEctocion through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Russell 1929