Leptodontomys douglassi
No picture of Leptodontomys douglassi was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Leptodontomys douglassi, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- LeptodontomysPBDB
- 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 4.4 million years on record.
The record covers at least 33.9 Mya to 29.5 Mya. No occurrence read is dated outside 37 Mya to 18.5 Mya.
4 occurrences of Leptodontomys douglassi 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
4 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
1 formation
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The named rock units Leptodontomys douglassi has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Leptodontomys douglassi and its relatives
OligoceneWhere Leptodontomys douglassi and its relatives were recorded in the Oligocene.
Found in the same rock
127 taxa- Domnina3 sites
- Agnotocastor2 sites
- Allomys2 sites
- Ansomys cyanotephrus2 sites
- Campestrallomys dawsonae2 sites
- Heliscomys2 sites
- Leidymys blacki2 sites
- Meniscomys2 sites
- Miospermophilus2 sites
- Nototamias2 sites
- Palaeolagus hypsodus2 sites
- Palaeolagus philoi2 sites
- Paradjidaumo2 sites
- Protosciurus mengi2 sites
- Protospermophilus2 sites
- Adjidaumo lophatus1 site
- Adjidaumo minimus1 site
- Altasciurus clausulus1 site
- Altasciurus relictus1 site
- Amphicaenopus platycephalus1 site
- Ankylodon annectens1 site
- Archaeocyon leptodus1 site
- Artiodactyla1 site
- Aulolithomys bounites1 site
The Paleobiology Database records 4 sites for Leptodontomys douglassi, 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
4 references- Rodents (Mammalia) from the Pilgrim Creek Local Fauna, Wyoming: a mixed Eocene and Oligocene assemblage (Duchesnean To Whitneyan)1
- Mammals from the Blue Ash Local Fauna (Late Oligocene), South Dakota. Rodentia, Part 1: Families Eutypomyidae, Eomyidae, Heliscomyidae, and Zetamys1
- Synonymies and reidentifications of North American fossil mammals1
- Additional Specimens of Leptodontomys douglassi (Eomyidae, Rodentia) from the Arikareean (Late Oligocene) of Nebraska1
Each of the 4 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 content0
No picture of Leptodontomys douglassi was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Leptodontomys douglassi, or no answer at all. This entry cannot say which.
No 3D scan of Leptodontomys douglassi 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 itLeptodontomys through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Burke 1934)