Desmocyon
Desmocyon is an extinct genus of the Borophaginae subfamily of canids native to North America. It lived from the Late Oligocene to the Early Miocene, 24.8—16.3 Mya, existing for approximately 8.5 mya. It is a rarely found genus, with fossil deposits only occurring in western Nebraska, Wyoming, New Mexico and north Florida. It is regarded as a primitive, transitional member of the Borophagini tribe.

Noles1984 · 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
- BorophaginiPBDB
- 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 most 14 million years on record.
Every occurrence read is dated to somewhere between 29.5 Mya and 16.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
42 occurrences of Desmocyon on record, most of them in the Miocene. 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
42 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
9 formations
- Runningwater Formation · Hemingford Group13
- Marsland Formation · Hemingford Group11
- Rosebud Formation3
- John Day Formation2
- Harrison Formation1
- ? Runningwater Formation1
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The named rock units Desmocyon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.
Desmocyon and its relatives
MioceneWhere Desmocyon and its relatives were recorded in the Miocene.
Found in the same rock
164 taxa- Merychyus minimus11 sites
- Cynarctoides acridens9 sites
- Merychyus arenarum9 sites
- Stenomylus gracilis9 sites
- Menoceras barbouri8 sites
- Pseudoblastomeryx advena8 sites
- Merycoides stouti7 sites
- Metatomarctus canavus6 sites
- Phlaocyon minor6 sites
- Equidae5 sites
- Menoceras arikarense5 sites
- Merycochoerus matthewi5 sites
- Aletomeryx gracilis4 sites
- Gregorymys riggsi4 sites
- Merychyus elegans4 sites
- Michenia4 sites
- Paraenhydrocyon wallovianus4 sites
- Syndyoceras cooki4 sites
- Ysengrinia americana4 sites
- Adilophontes brachykolos3 sites
- Amphicyonidae3 sites
- Archaeohippus3 sites
- Camelidae3 sites
- Cephalogale3 sites
The Paleobiology Database records 42 sites for Desmocyon, 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
7 references- Phylogenetic systematics of the Borophaginae (Carnivora: Canidae)34
- Geology and paleontology of the upper John Day beds, John Day river valley, Oregon: lithostratigraphic and biochronologic revision in the Haystack Valley and Kimberly areas (Kimberly and Mt. Misery quadrangles)2
- Synonymies and reidentifications of North American fossil mammals2
- Fossil dogs (Carnivora, Canidae) from the Sespe and Vaqueros formations in Southern California, with comments on relationships of Phlaocyon taylori1
- Biostratigraphy and biochronology of early Arikareean through late Hemingfordian small mammal faunas from the Nebraska Panhandle and adjacent areas1
- Review of the Miocene Wounded Knee faunas of southwestern South Dakota1
- New Carnivora from the Miocene and Pliocene of Western Nebraska1
Each of the 42 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Desmocyon
- Source
- Wikipedia/Commons
- Credit
- Noles1984
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Desmocyon 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, “Desmocyon”
- 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 itBorophagini through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Wang et al. 1999