Namatomys
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
- NamatomyiniPBDB
- 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.
12 occurrences of Namatomys 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
12 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
6 formations
- White River Formation5
- Renova Formation2
- Cypress Hills Formation1
- Chadron Formation1
- Brule Formation1
- Florissant Formation1
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The named rock units Namatomys 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.
Namatomys and its relatives
EoceneWhere Namatomys and its relatives were recorded in the Eocene.
Found in the same rock
214 taxa- Ischyromys veterior8 sites
- <Novacek leptictid>6 sites
- Adjidaumo minimus6 sites
- Brontotheriidae6 sites
- Oligoryctes altitalonidus6 sites
- Trigenicus profectus6 sites
- Centetodon chadronensis5 sites
- Douglassciurus jeffersoni5 sites
- Herpetotherium fugax5 sites
- Hesperocyon gregarius5 sites
- Leptomeryx mammifer5 sites
- Leptomeryx speciosus5 sites
- Megalagus brachyodon5 sites
- Palaeolagus temnodon5 sites
- Prosciurus vetustus5 sites
- Brachyrhynchocyon4 sites
- Chadrolagus emryi4 sites
- Cylindrodon natronensis4 sites
- Daphoenictis4 sites
- Didelphidae4 sites
- Domnina thompsoni4 sites
- Eotylopus reedi4 sites
- Equidae4 sites
- Heliscomys (Syphyriomys) ostranderi4 sites
The Paleobiology Database records 11 sites for Namatomys, 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
8 references- Mammalian Range Zones in the Chadronian White River Formation at Flagstaff Rim, Wyoming4
- Magnetostratigraphy and biostratigraphy of the Eocene-Oligocene transition, southwestern Montana2
- Additions to the mammalian fauna of the late Eocene (Chadronian) Florissant Formation, central Colorado1
- Early Chadronian (late Eocene) rodents from the Flagstaff Rim area, central Wyoming1
- A latest Chadronian (Late Eocene) mammalian fauna from the Cypress Hills, Saskatchewan1
- Geomyoid rodents (Mammalia) from the Orellan (middle Oligocene) of Nebraska,1
- Stratigraphic occurrence of rodents and lagomorphs in the Orella Member, Brule Formation (Oligocene), northwestern Nebraska1
- Correlation of the early Oligocene (Chadronian) in northwestern Nebraska1
Each of the 12 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 Namatomys
- 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 Namatomys 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 itNamatomyini through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Black 1965