Downsimus chadwicki
No picture of Downsimus chadwicki 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 Downsimus chadwicki, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DownsimusPBDB
- Diet
- herbivorePBDB, for Aplodontiidae
- Life habit
- fossorialPBDB, for Aplodontiidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 29.5 Mya and 18.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Downsimus chadwicki 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
6 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
3 formations
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The named rock units Downsimus chadwicki has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Downsimus chadwicki and its relatives
OligoceneWhere Downsimus chadwicki and its relatives were recorded in the Oligocene.
Found in the same rock
121 taxa- Palaeolagus philoi5 sites
- Geringia mcgregori4 sites
- Palaeolagus hypsodus4 sites
- Leptauchenia major3 sites
- Nanotragulus loomisi3 sites
- Agnotocastor2 sites
- Archaeocyon leptodus2 sites
- Campestrallomys dawsonae2 sites
- Canidae2 sites
- Ekgmowechashala philotau2 sites
- Florentiamys tiptoni2 sites
- Herpetotherium fugax2 sites
- Herpetotherium youngi2 sites
- Leidymys blacki2 sites
- Megalagus primitivus2 sites
- Merycoidodontidae2 sites
- Miohippus2 sites
- Nanodelphys2 sites
- Nototamias2 sites
- Ocajila makpiyahe2 sites
- Palaeocastor2 sites
- Palaeocastor peninsulatus2 sites
- Proharrymys fedti2 sites
- Proharrymys schlaikjeri2 sites
The Paleobiology Database records 6 sites for Downsimus chadwicki, 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
5 references- Small mammals of the Kealey Springs local fauna (early Arikareean; late Oligocene) of Saskatchewan2
- Magnetostratigraphy and paleontology of Wagner Quarry, (late Oligocene, early Arikareean) basal Arikaree Group of the Pine Ridge region, Dawes County, Nebraska1
- Biostratigraphy and biochronology of early Arikareean through late Hemingfordian small mammal faunas from the Nebraska Panhandle and adjacent areas1
- Stratigraphy and biostratigraphy of the eastern portion of the Wildcat Ridge, western Nebraska1
- Review of the Miocene Wounded Knee faunas of southwestern South Dakota1
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 content0
No picture of Downsimus chadwicki 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 Downsimus chadwicki, or no answer at all. This entry cannot say which.
No 3D scan of Downsimus chadwicki was found in MorphoSource and Sketchfab.
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 itDownsimus through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Macdonald 1970