Hyopsodus loomisi

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
- HyopsodusPBDB
- Diet
- omnivorePBDB, for Hyopsodontidae
- Life habit
- scansorialPBDB, for Eutheria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 8 million years on record.
Every occurrence read is dated to somewhere between 56 Mya and 48.07 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
154 occurrences of Hyopsodus loomisi on record, most of them in the Eocene. 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
154 occurrences- Eocene100%
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
5 formations
- Willwood Formation140
- Wasatch Formation11
- Golden Valley Formation1
- Indian Meadows Formation1
- Wind River Formation1
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The named rock units Hyopsodus loomisi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Hyopsodus loomisi and its relatives
EoceneWhere Hyopsodus loomisi and its relatives were recorded in the Eocene.
Found in the same rock
301 taxa- Haplomylus speirianus86 sites
- Cantius mckennai78 sites
- Diacodexis metsiacus71 sites
- Ectocion osbornianus61 sites
- Coryphodon eocaenus58 sites
- Sifrhippus grangeri56 sites
- Arenahippus aemulor53 sites
- Phenacodus intermedius51 sites
- Cardiolophus radinskyi48 sites
- Homogalax protapirinus40 sites
- Allognathosuchus39 sites
- Esthonyx spatularius37 sites
- Thryptacodon antiquus36 sites
- Arfia shoshoniensis34 sites
- Crocodylia34 sites
- Viverravus acutus33 sites
- Phenacodus vortmani31 sites
- Rodentia31 sites
- Esthonyx bisulcatus28 sites
- Hyopsodus simplex27 sites
- Lacertilia25 sites
- Tetonius matthewi25 sites
- Lepisosteus22 sites
- Didymictis protenus21 sites
The Paleobiology Database records 154 sites for Hyopsodus loomisi, 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- Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary96
- Revision of the Wind River faunas, early Eocene of central Wyoming. Part 13. Systematics and phylogenetic pattern of early Eocene Hyopsodus (Mammalia: Condylarthra)21
- Earliest Eocene mammalian fauna from the Paleocene-Eocene Thermal Maximum at Sand Creek Divide, southern Bighorn Basin, Wyoming13
- New earliest Wasatchian mammalian fauna from the Eocene of northwestern Wyoming: composition and diversity in a rarely sampled high-floodplain assemblage8
- Fossil Mammalia from the early Wasatchian Four Mile fauna, Eocene of northwest Colorado7
- Laramide tectonics and deposition, Washakie Range and northwestern Wind River Basin, Wyoming2
- Early Eocene mammalian faunas and their environment in the vicinity of the Rock Springs Uplift, Wyoming2
- New Species of Hapalodectes (Mammalia, Mesonychia) from the Early Wasatchian, Early Eocene of Northwestern Wyoming1
- Early Eocene bats (Mammalia, Chiroptera) and other vertebrates in freshwater limestones of the Willlwood Formation, Clark's Fork Basin, Wyoming1
- Paleoecology of an Early Eocene mammalian fauna from paleosols in the Clarks Fork Basin, northwestern Wyoming (U.S.A.)1
- Revised and Amended Fossil Vertebrate Faunal Lists, Early Tertiary, Hoback Basin, Wyoming1
- Eocene vertebrates, coprolites, and plants in the Golden Valley Formation of western North Dakota1
Each of the 154 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 Hyopsodus loomisi
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHyopsodus through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. McKenna 1960