Hyaenodon horridus

Nobu Tamura email:nobu.tamura@yahoo.com http://spinops.blogspot.com/ · CC BY-SA 4.0 · via Wikidata/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
- HyaenodonPBDB
- Diet
- carnivorePBDB, for Hyaenodon
- Life habit
- ground dwellingPBDB, for Hyaenodontidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 2.1 million years on record.
The record covers at least 33.9 Mya to 31.8 Mya. No occurrence read is dated outside 37 Mya to 29.5 Mya.
19 occurrences of Hyaenodon horridus on record. 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
19 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
5 formations
- Brule Formation · White River Group10
- Chadron Formation5
- Cypress Hills Formation1
- Palm Peak Formation1
- Chambers Tuff Formation1
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The named rock units Hyaenodon horridus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Found in the same rock
226 taxa- Megalagus turgidus9 sites
- Merycoidodon culbertsonii9 sites
- Hyaenodon crucians8 sites
- Leptomeryx evansi8 sites
- Palaeolagus haydeni8 sites
- Poebrotherium wilsoni8 sites
- Brontotheriidae7 sites
- Leptictis dakotensis7 sites
- Daphoenus6 sites
- Hesperocyon gregarius6 sites
- Ischyromys6 sites
- Mesohippus bairdi6 sites
- Subhyracodon occidentalis6 sites
- Brachyrhynchocyon dodgei5 sites
- Colodon occidentalis5 sites
- Hypertragulus calcaratus5 sites
- Palaeolagus intermedius5 sites
- Subhyracodon mitis5 sites
- Archaeotherium mortoni4 sites
- Hoplophoneus primaevus4 sites
- Hyracodon priscidens4 sites
- Leptomeryx speciosus4 sites
- Miniochoerus chadronensis4 sites
- Poebrotherium eximium4 sites
The Paleobiology Database records 19 sites for Hyaenodon horridus, 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- Elocene-Oligocene climatic change in North America: The White River Formation near Douglass, East-Central Wyoming5
- Synonymies and reidentifications of North American fossil mammals3
- A contribution to the Tertiary geology and paleontology of northeastern Colorado2
- Eocene-Oligocene faunas of the Cypress Hills Formation, Saskatchewan1
- Lucas and Williamson, 19931
- Mammalian paleontology and geology of the Yoder Member, Chadron Formation, east-central Wyoming1
- Carnivorous mammals of the Late Eocene and Early Oligocene of Trans-Pecos Texas1
- Geology and paleontology of the Oligocene Harris Ranch Badlands, southwestern South Dakota1
- Mammals of the Swift Current Creek Local Fauna (Eocene: Uintan), Saskatchewan1
- Geology, paleoecology, and paleoclimatology of the Chadron Formation1
- The Faunas of the Concretionary Zones of the Oreodon Beds, White River Oligocene1
- Fossil mammals of the Lower Miocene White River beds. Collection of 18921
Each of the 19 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 Hyaenodon horridus
- Source
- Wikidata/Commons
- Credit
- Nobu Tamura email:nobu.tamura@yahoo.com http://spinops.blogspot.com/
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- FennecFyre
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
Smithsonian Open Access and MorphoSource were 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 itHyaenodon through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Leidy 1853)