Enhydrocyon
Enhydrocyon is an extinct genus of bone crushing canid which inhabited North America during the Oligocene and Early Miocene, 30.8—20.4 Ma, existing for approximately 11 million years.

William Driller Matthew (1871-1930) · Public Domain · via Wikipedia/Commons. 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
- HesperocyoninaePBDB
- Diet
- carnivore, omnivorePBDB, for Canidae
- Life habit
- ground dwellingPBDB, for Canidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 6.4 million years on record.
The record covers at least 29.5 Mya to 23.1 Mya. No occurrence read is dated outside 31.8 Mya to 18.5 Mya.
30 occurrences of Enhydrocyon on record, most of them in the Oligocene. 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
30 occurrencesThese 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
6 formations
- John Day Formation6
- Harrison Formation · Arikaree Group4
- Monroe Creek Formation3
- Sharps Formation3
- Gering Formation1
- Turtle Butte Formation1
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The named rock units Enhydrocyon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.
Enhydrocyon and its relatives
OligoceneWhere Enhydrocyon and its relatives were recorded in the Oligocene.
Found in the same rock
237 taxa- Capacikala gradatus8 sites
- Diceratherium annectens8 sites
- Diceratherium armatum8 sites
- Miohippus8 sites
- Nanotragulus loomisi7 sites
- Leptauchenia major6 sites
- Paraenhydrocyon josephi6 sites
- Promerycochoerus carrikeri6 sites
- Promerycochoerus superbus6 sites
- Leptauchenia decora5 sites
- Megoreodon grandis5 sites
- Mesoreodon minor5 sites
- Miohippus equinanus5 sites
- Nimravus brachyops5 sites
- Paramerychyus harrisonensis5 sites
- Archaeocyon leptodus4 sites
- Archaeotherium4 sites
- Daphoenus4 sites
- Diceratherium4 sites
- Eporeodon occidentalis4 sites
- Miohippus equiceps4 sites
- Miotylopus gibbi4 sites
- Miotylopus leonardi4 sites
- Palaeolagus philoi4 sites
The Paleobiology Database records 29 sites for Enhydrocyon, 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- Phylogenetic systematics of the Hesperocyoninae (Carnivora: Canidae)14
- Review of the Miocene Wounded Knee faunas of southwestern South Dakota5
- Revised chronostratigraphy and biostratigraphy of the John Day Formation (Turtle Cove and Kimberly Members), Oregon, with implications for updated calibration of the Arikareean North American land mammal age3
- Stratigraphy and biostratigraphy of the eastern portion of the Wildcat Ridge, western Nebraska2
- Observations on the faunae of the Miocene Tertiaries of Oregon2
- Terrestrial mammal fossils from the Wildcat Creek Beds (Paleogene), Tieton River Area, south-central Washington, USA1
- Synonymies and reidentifications of North American fossil mammals1
- The Brooksville 2 local fauna (Arikareean, latest Oligocene) Hernando County, Florida1
- Uppermost White River and lowermost Arikaree rocks and faunas, White River Valley, north-western Nebraska and their correlation with South Dakota1
Each of the 30 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 Enhydrocyon
- Source
- Wikipedia/Commons
- Credit
- William Driller Matthew (1871-1930)
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Enhydrocyon was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Enhydrocyon”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHesperocyoninae through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1879