Heliscomys (Syphyriomys) ostranderi
No picture of Heliscomys (Syphyriomys) ostranderi 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 Heliscomys (Syphyriomys) ostranderi, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- Heliscomys (Syphyriomys)PBDB
- 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 3.1 million years on record.
Every occurrence read is dated to somewhere between 37 Mya and 33.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
7 occurrences of Heliscomys (Syphyriomys) ostranderi 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
7 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
- White River Formation3
- Cypress Hills Formation1
- Chadron Formation · White River Group1
- Renova Formation1
Loading coastlines…
The named rock units Heliscomys (Syphyriomys) ostranderi 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.
Heliscomys (Syphyriomys) ostranderi and its relatives
EoceneWhere Heliscomys (Syphyriomys) ostranderi and its relatives were recorded in the Eocene.
Found in the same rock
200 taxa- Brontotheriidae7 sites
- Douglassciurus jeffersoni6 sites
- Leptomeryx speciosus6 sites
- Trigenicus profectus6 sites
- Adjidaumo minimus5 sites
- Hyracodon priscidens5 sites
- <Novacek leptictid>4 sites
- Daphoenictis4 sites
- Eotylopus reedi4 sites
- Helodermoides tuberculatus4 sites
- Hesperocyon gregarius4 sites
- Ischyromys veterior4 sites
- Leptomeryx mammifer4 sites
- Megalagus brachyodon4 sites
- Namatomys lloydi4 sites
- Oligoryctes altitalonidus4 sites
- Palaeolagus temnodon4 sites
- Prosciurus vetustus4 sites
- Agriochoerus3 sites
- Aulolithomys bounites3 sites
- Aulolithomys vexilliames3 sites
- Bathygenys3 sites
- Brachyrhynchocyon3 sites
- Centetodon chadronensis3 sites
The Paleobiology Database records 7 sites for Heliscomys (Syphyriomys) ostranderi, 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
3 references- A New Species of Heliscomys and Recognition of the Family Heliscomyidae (Geomyoidea: Rodentia)3
- Eocene-Oligocene faunas of the Cypress Hills Formation, Saskatchewan2
- Magnetostratigraphy and biostratigraphy of the Eocene-Oligocene transition, southwestern Montana2
Each of the 7 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Heliscomys (Syphyriomys) ostranderi 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 Heliscomys (Syphyriomys) ostranderi, or no answer at all. This entry cannot say which.
No 3D scan of Heliscomys (Syphyriomys) ostranderi 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 itHeliscomys (Syphyriomys) through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Korth et al. 1991)