Paramyidae

via iDigBio · 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- Sits inside
- RodentiaPBDB
- Diet
- herbivorePBDB
- Life habit
- ground dwellingPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB
Time the record covers
At least 16 million years on record.
The record covers at least 56 Mya to 39.7 Mya. No occurrence read is dated outside 59.24 Mya to 33.9 Mya.
126 occurrences of Paramyidae 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
126 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
30 formations
- Bridger Formation27
- Aycross Formation10
- Willwood Formation8
- Wasatch Formation7
- Devil's Graveyard Formation7
- Uinta Formation5
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The named rock units Paramyidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 further formations hold fewer occurrences each and are not listed. 19 occurrences have no formation on record, which is common for older literature.
Paramyidae and its relatives
EoceneWhere Paramyidae and its relatives were recorded in the Eocene.
Found in the same rock
975 taxa- Thisbemys corrugatus28 sites
- Omomys carteri26 sites
- Microsyops elegans21 sites
- Hyopsodus paulus18 sites
- Coryphodon17 sites
- Sciuravus nitidus17 sites
- Ectocion osbornianus16 sites
- Hyopsodus16 sites
- Washakius insignis16 sites
- Herpetotherium knighti14 sites
- Hyopsodus minusculus13 sites
- Hyrachyus modestus13 sites
- Microparamys minutus13 sites
- Scenopagus edenensis13 sites
- Microparamys12 sites
- Thisbemys12 sites
- Antiacodon pygmaeus11 sites
- Hyrachyus11 sites
- Uintaparamys parvus11 sites
- Herpetotherium marsupium10 sites
- Orohippus10 sites
- Paramys copei10 sites
- Apatemys bellulus9 sites
- Microsyops scottianus9 sites
The Paleobiology Database records 105 sites for Paramyidae, 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
48 references- Synonymies and reidentifications of North American fossil mammals37
- Systematics of Late Paleocene and Early Eocene Rodentia (Mammalia) from the Clarks Fork Basin, Wyoming8
- Earliest Tertiary evolution and radiation of rodents in North America8
- The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary6
- Geology, Paleontology, and Correlation of Eocene Volcaniclastic Rocks, Southeast Absaroka Range, Hot Springs County, Wyoming4
- Early Wasatchian mammals of the Red Hot local fauna, uppermost Tuscahoma Formation, Lauderdale County, Mississippi3
- Eocene mammal faunas of San Diego County3
- Early Eocene Mammalian Fauna of the Piceance Creek Basin. Northwestern Colorado3
- Late Eocene rodents (Mammalia) from Inner Mongolia3
- The Early Tertiary Rodents of the Family Paramyidae3
- A new mammalian fauna from the earliest Eocene (Ilerdian) of the Corbières (Southern France): palaeobiogeographical implications2
- Fossil Mammals from the Early Eocene Wutu Formation of Shandong Province2
Each of the 126 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. 36 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 content2

Picture of Paramyidae
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Paramyidae indet. · CM:VertPaleo:79266
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 itRodentia through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Miller and Gidley 1918