Douglassciurus bjorki
No picture of Douglassciurus bjorki was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Douglassciurus bjorki, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DouglassciurusPBDB
- Diet
- granivore, frugivorePBDB, for Sciuridae
- Life habit
- scansorialPBDB, for Sciuridae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 7.5 million years on record.
Every occurrence read is dated to somewhere between 37 Mya and 29.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Douglassciurus bjorki 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
2 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 Douglassciurus bjorki has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Douglassciurus bjorki and its relatives
OligoceneWhere Douglassciurus bjorki and its relatives were recorded in the Oligocene.
Found in the same rock
101 taxa- Epeiromys2 sites
- Scottimus lophatus2 sites
- Adjidaumo intermedius1 site
- Adjidaumo minimus1 site
- Agnotocastor praetereadens1 site
- Altasciurus1 site
- Altasciurus albiclivus1 site
- Altasciurus clausulus1 site
- Altasciurus relictus1 site
- Amphechinus1 site
- Ankylodon progressus1 site
- Ansomys cyanotephrus1 site
- Apatemys1 site
- Apternodus major1 site
- Aulolithomys bounites1 site
- Aulolithomys vexilliames1 site
- Blacktops1 site
- Campestrallomys1 site
- Campestrallomys dawsonae1 site
- Campestrallomys siouxensis1 site
- Cedromus modicus1 site
- Centetodon marginalis1 site
- Centetodon wolffi1 site
- Centimanomys major1 site
The Paleobiology Database records 2 sites for Douglassciurus bjorki, 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
2 references- Fossil mammals from ant mounds situated on exposures of the Big Cottonwood Creek Member of the Chadron Formation (latest Eocene - Early Oligocene), Sioux County, Nebraska1
- Rodents (Mammalia) from the Whitneyan (Middle Oligocene) Cedar Pass Fauna of South Dakota1
Each of the 2 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 Douglassciurus bjorki was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Douglassciurus bjorki, or no answer at all. This entry cannot say which.
No 3D scan of Douglassciurus bjorki 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 itDouglassciurus through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Korth 2014