Eutypomys thomsoni

via iDigBio · CC0 · 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
- EutypomysPBDB
- Diet
- herbivorePBDB, for Rodentia
- Life habit
- ground dwellingPBDB, for Rodentia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 5.2 million years on record.
Every occurrence read is dated to somewhere between 37 Mya and 31.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
7 occurrences of Eutypomys thomsoni 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
7 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
2 formations
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The named rock units Eutypomys thomsoni 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.
Eutypomys thomsoni and its relatives
OligoceneWhere Eutypomys thomsoni and its relatives were recorded in the Oligocene.
Found in the same rock
76 taxa- Hesperocyon gregarius6 sites
- Daphoenus4 sites
- Didelphidae4 sites
- Hypertragulus calcaratus4 sites
- Leptomeryx evansi4 sites
- Megalagus turgidus4 sites
- Merycoidodon culbertsonii4 sites
- Mesohippus bairdi4 sites
- Palaeolagus haydeni4 sites
- Adjidaumo minutus3 sites
- Colodon occidentalis3 sites
- Dinictis3 sites
- Eumys elegans3 sites
- Hyracodon nebraskensis3 sites
- Ischyromys typus3 sites
- Miniochoerus gracilis3 sites
- Paradjidaumo trilophus3 sites
- Peltosaurus3 sites
- Poebrotherium wilsoni3 sites
- Subhyracodon3 sites
- Agriochoerus antiquus2 sites
- Altasciurus relictus2 sites
- Archaeotherium mortoni2 sites
- Hyaenodon2 sites
The Paleobiology Database records 7 sites for Eutypomys thomsoni, 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
6 references- Analysis of the Preservation of Community Structure in Assemblages of Fossil Mammals2
- Description of an Earliest Orellan Fauna From Badlands National Park, Interior, South Dakota and Implications for the Stratigraphic Position of the Bloom Basin Limestone Bed1
- Preliminary biostratigraphy of the White River Group (Oligocene, Chadron and Brule formations) in the vicinity of Chadron, Nebraska1
- Cranial foramina and relationships of Eutypomys (Rodentia, Eutypomyidae)1
- Geology, paleoecology, and paleoclimatology of the Chadron Formation1
- Notice of two new genera of mammals from the Oligocene of South Dakota1
Each of the 7 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 Eutypomys thomsoni
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Eutypomys thomsoni · amnh:fm:12254
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 itEutypomys through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Matthew 1905