Hesperogaulus

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
- MylagaulinaePBDB
- Diet
- herbivorePBDB, for Rodentia
- Life habit
- ground dwellingPBDB, for Rodentia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 3.1 million years on record.
The record covers at least 12.5 Mya to 9.4 Mya. No occurrence read is dated outside 23.04 Mya to 4.7 Mya.
15 occurrences of Hesperogaulus 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
15 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
- Mascall Formation2
- Butte Creek Formation2
- Drewsey Formation1
- Esmeralda Formation1
- McKay Formation1
- Volcanic Sandstone Formation1
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The named rock units Hesperogaulus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Hesperogaulus and its relatives
MioceneWhere Hesperogaulus and its relatives were recorded in the Miocene.
Found in the same rock
206 taxa- Acritohippus isonesus8 sites
- Camelidae7 sites
- Hypohippus osborni6 sites
- Ticholeptus zygomaticus6 sites
- Desmatippus avus5 sites
- Dromomeryx borealis5 sites
- Liodontia alexandrae5 sites
- Merychippus brevidontus5 sites
- Aphelops4 sites
- Merycodontinae4 sites
- Tayassuinae4 sites
- Amphicyon frendens3 sites
- Archaeohippus ultimus3 sites
- Canidae3 sites
- Dipoides stirtoni3 sites
- Pliotaxidea nevadensis3 sites
- Proboscidea3 sites
- Protospermophilus malheurensis3 sites
- Balantiomys oregonensis2 sites
- Dinohippus spectans2 sites
- Diprionomys parvus2 sites
- Dromomerycidae2 sites
- Epicyon saevus2 sites
- Eucyon davisi2 sites
The Paleobiology Database records 15 sites for Hesperogaulus, 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
3 references- Hesperogaulus, a new genus of mylagaulid rodent (Mammalia) from the Miocene (Barstovian to Hemphillian) of the Great Basin11
- Synonymies and reidentifications of North American fossil mammals3
- The fauna and chronostratigraphy of the middle Miocene Mascall type area, John Day Basin, Oregon, USA1
Each of the 15 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 Hesperogaulus
- 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 of Hesperogaulus 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 itMylagaulinae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Korth 1999