Microtus paroperarius
No picture of Microtus paroperarius 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 Microtus paroperarius, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- MicrotusPBDB
- Diet
- herbivorePBDB, for Rodentia
- Life habit
- ground dwellingPBDB, for Microtus
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 4.7 million years on record.
Every occurrence read is dated to somewhere between 4.7 Mya and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.
32 occurrences of Microtus paroperarius on record, most of them in the Pleistocene. 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
32 occurrences- Pliocene1%
- Pleistocene99%
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
6 formations
- Alamosa Formation10
- Crooked Creek Formation2
- Tule Formation2
- Seymour Formation1
- Sappa Formation1
- "Meade" Formation1
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The named rock units Microtus paroperarius has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 occurrences have no formation on record, which is common for older literature.
Microtus paroperarius and its relatives
PleistoceneWhere Microtus paroperarius and its relatives were recorded in the Pleistocene.
Found in the same rock
268 taxa- Microtus meadensis15 sites
- Ambystoma tigrinum10 sites
- Geomys10 sites
- Mictomys meltoni10 sites
- Parageomys tobinensis10 sites
- Sorex cinereus10 sites
- Ondatra annectens9 sites
- Rana8 sites
- Camelops7 sites
- Equus7 sites
- Spermophilus7 sites
- Spermophilus tridecemlineatus7 sites
- Blarina brevicauda6 sites
- Bufo6 sites
- Cynomys6 sites
- Equus mexicanus6 sites
- Neotoma6 sites
- Peromyscus cragini6 sites
- Thamnophis6 sites
- Urocitellus richardsonii6 sites
- Leporidae5 sites
- Microtus llanensis5 sites
- Peromyscus5 sites
- Sorex5 sites
The Paleobiology Database records 32 sites for Microtus paroperarius, 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
16 references- Middle Pleistocene (late Irvingtonian: Nebraskan) climatic changes in south-central Colorado10
- Dalquest and Schultz, 19924
- Eshelman and Hager, 19843
- Late Kansan Faunas from Central Kansas3
- Paleontology and historic field trip of the John Guilday Cave Preserve (Trout Rock)1
- Gillette et al., 19991
- Early Rancholabrean mammals from Salamander Cave, Black Hills, South Dakota1
- A middle Pleistocene (Irvingtonian) microtine rodent fauna from White Pine County, Nevada, and its implications for microtone rodent biochronology1
- A biota associated with Matuyama-age sediments in west-central Illinois1
- Irvingtonian Microtus, Pedomys, and Pitymys (Mammalia, Rodenlia, Cri- cetidae) from Trout Cave No. 2, West Virginia1
- Middle Pleistocene arvicoline rodents and environmental change at 2900-meters elevation, Porcupine Cave, South Park, Colorado1
- Early Pleistocene (Irvingtonian) mammals from the Seymour Formation, Knox and Baylor Counties, Texas, exclusive of Camelidae1
Each of the 32 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. 4 further references are not listed. 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 Microtus paroperarius 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 Microtus paroperarius, or no answer at all. This entry cannot say which.
No 3D scan of Microtus paroperarius 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 itMicrotus through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hibbard 1944)