Mytonomys robustus

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
- MytonomysPBDB
- 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 8.9 million years on record.
Every occurrence read is dated to somewhere between 45.9 Mya and 37 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Mytonomys robustus 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
6 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
4 formations
Loading coastlines…
The named rock units Mytonomys robustus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Mytonomys robustus and its relatives
EoceneWhere Mytonomys robustus and its relatives were recorded in the Eocene.
Found in the same rock
179 taxa- Amynodon advenus4 sites
- Protoreodon petersoni4 sites
- Protoreodon pumilus4 sites
- Agriochoeridae3 sites
- Bunomeryx montanus3 sites
- Epihippus gracilis3 sites
- Isectolophus annectens3 sites
- Metaparamys compressidens3 sites
- Mytonolagus petersoni3 sites
- Triplopus obliquidens3 sites
- Diplobunops matthewi2 sites
- Epitriplopus uintensis2 sites
- Harpagolestes leotensis2 sites
- Harpagolestes uintensis2 sites
- Heteraletes2 sites
- Leptotragulus clarki2 sites
- Leptotragulus medius2 sites
- Leptotragulus proavus2 sites
- Macrotarsius jepseni2 sites
- Miocyon scotti2 sites
- Mytonomeryx scotti2 sites
- Ourayia uintensis2 sites
- Pareumys milleri2 sites
- Pentacemylus leotensis2 sites
The Paleobiology Database records 6 sites for Mytonomys robustus, 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- Magnetic stratigraphy and biostratigraphy of the middle Eocene Uinta Formation, Uinta Basin, Utah1
- Biostratigraphic implications of the first Eocene land-mammal fauna from the North American coastal plain1
- Stratigraphic Occurrence and Correlation of Early Tertiary Vertebrate Faunas, Trans-Pecos Texas: Agua Fria-Green Valley Areas1
- Stratigraphy of the Duchesne River Formation (Eocene-Oligocene?), northern Uinta Basin northeastern Utah1
- The Eocene Vertebrates of the Uinta Basin, Utah1
- Report Upon the Material Discovered in the Upper Eocene of the Uinta Basin by Earl Douglas in the Years 1908-1909, and by O. A. Peterson in 19121
Each of the 6 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 Mytonomys robustus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Mytonomys robustus 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMytonomys through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Peterson 1919)