Mictomys borealis

via iDigBio · CC BY-SA · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Also called
- northern bog lemmingPBDB
- Sits inside
- MictomysPBDB
- Diet
- herbivorePBDB, for Rodentia
- Life habit
- ground dwellingPBDB, for Rodentia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 198 thousand years on record.
The record covers at least 210 ka to 11.7 ka. No occurrence read is dated outside 2.58 Mya to 0 Mya.
25 occurrences of Mictomys borealis on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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
25 occurrences- Pleistocene91%
- Holocene9%
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.
Mictomys borealis and its relatives
PleistoceneWhere Mictomys borealis and its relatives were recorded in the Pleistocene.
Found in the same rock
421 taxa- Clethrionomys gapperi18 sites
- Microtus pennsylvanicus16 sites
- Neotoma floridana14 sites
- Peromyscus13 sites
- Sorex cinereus12 sites
- Synaptomys cooperi12 sites
- Tamiasciurus hudsonicus12 sites
- Marmota monax11 sites
- Microtus11 sites
- Microtus chrotorrhinus11 sites
- Myotis11 sites
- Phenacomys intermedius11 sites
- Sorex11 sites
- Tamias striatus11 sites
- Erethizon dorsatum10 sites
- Spermophilus tridecemlineatus10 sites
- Eptesicus fuscus9 sites
- Glaucomys volans9 sites
- Odocoileus virginianus9 sites
- Blarina brevicauda8 sites
- Glaucomys sabrinus8 sites
- Microtus pinetorum8 sites
- Ondatra zibethicus8 sites
- Parascalops breweri8 sites
The Paleobiology Database records 24 sites for Mictomys borealis, 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- Quaternary vertebrate localities of Virginia and their avian and mammalian fauna6
- Ecological Significance of Displaced Boreal Mammals in West Virginia Caves3
- Synonymies and reidentifications of North American fossil mammals2
- The ancestors of the lemmings (Lemmini, Arvicolinae, Cricetidae, Rodentia) in the early Pliocene of Wölfersheim near Frankfurt am Main; Germany.2
- Pleistocene vertebrates from the pre-late Wisconsinan Mill Creek site, St. Clair County, Michigan1
- Melrose Caverns: A Late Pleistocene Vertebrate Locality in Virginia, U.S.A.1
- The Pleistocene Fauna from Earlys Cave and Earlys Pit, Wythe County, Virginia1
- Sheriden: a Clovis cave site in eastern North America1
- Jefferson, 19941
- Mid-Wisconsinan vertebrates and their environment from January Cave, Alberta, Canada1
- A preliminary account of the Pleistocene mammals from Patton Cave, Monroe County, West Virginia1
- The late Pleistocene fauna of New Trout Cave, Pendleton County, West Virginia1
Each of the 25 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 content1

Picture of Mictomys borealis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY-SA
- Commercial use
- the licence allows it
No 3D scan of Mictomys borealis 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 itMictomys through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Richardson 1828)