Herpetotherium youngi
No picture of Herpetotherium youngi 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 Herpetotherium youngi, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HerpetotheriumPBDB
- Diet
- omnivorePBDB, for Marsupialia
- Life habit
- ground dwellingPBDB, for Herpetotheriidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Mammalia
Time the record covers
At least 1.6 million years on record.
The record covers at least 24.7 Mya to 23.1 Mya. No occurrence read is dated outside 29.5 Mya to 18.5 Mya.
22 occurrences of Herpetotherium youngi 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
22 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
10 formations
- Gering Formation5
- Sharps Formation3
- Harrison Formation · Arikaree Group3
- Monroe Creek Formation2
- Brule Formation2
- Cypress Hills Formation1
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The named rock units Herpetotherium youngi 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.
Herpetotherium youngi and its relatives
OligoceneWhere Herpetotherium youngi and its relatives were recorded in the Oligocene.
Found in the same rock
186 taxa- Palaeocastor11 sites
- Proscalops secundus9 sites
- Palaeolagus philoi8 sites
- Geringia mcgregori7 sites
- Palaeolagus hypsodus7 sites
- Promylagaulus riggsi7 sites
- Gripholagomys lavocati6 sites
- Leidymys blacki6 sites
- Proscalops tertius6 sites
- Protospermophilus6 sites
- Castoridae5 sites
- Ekgmowechashala philotau5 sites
- Entoptychus grandiplanus5 sites
- Palaeocastor fossor5 sites
- Parvericius5 sites
- Proharrymys fedti5 sites
- Sanctimus stuartae5 sites
- Alwoodia4 sites
- Alwoodia harkseni4 sites
- Archaeocyon leptodus4 sites
- Campestrallomys dawsonae4 sites
- Gregorymys formosus4 sites
- Hitonkala macdonaldtau4 sites
- Leidymys4 sites
The Paleobiology Database records 22 sites for Herpetotherium youngi, 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
9 references- Synonymies and reidentifications of North American fossil mammals8
- Biostratigraphy and biochronology of early Arikareean through late Hemingfordian small mammal faunas from the Nebraska Panhandle and adjacent areas4
- Stratigraphy and biostratigraphy of the eastern portion of the Wildcat Ridge, western Nebraska3
- Fossil small mammals from the Harrison Formation (late Arikareean: earliest Miocene), Cherry County, Nebraska2
- Small mammals of the Kealey Springs local fauna (early Arikareean; late Oligocene) of Saskatchewan1
- Middle Tertiary marsupials (Mammalia) from North America1
- Monroe Creek (early Miocene) microfossils from the Wounded Knee area, South Dakota1
- Review of the Miocene Wounded Knee faunas of southwestern South Dakota1
- New marsupials from the Tertiary of Nebraska1
Each of the 22 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 Herpetotherium youngi 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 Herpetotherium youngi, or no answer at all. This entry cannot say which.
No 3D scan of Herpetotherium youngi 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 itHerpetotherium through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (McGrew 1937)