Pediomyidae

Frank E. Beddard · Public Domain · via Wikidata/Commons. 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
- PediomyoideaPBDB
- Diet
- omnivorePBDB, for Metatheria
- Life habit
- scansorialPBDB, for Theria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Mammalia
Time the record covers
At least 33 million years on record.
The record covers at least 89.8 Mya to 56 Mya. No occurrence read is dated outside 93.9 Mya to 48.07 Mya.
211 occurrences of Pediomyidae on record, most of them in the Late Cretaceous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
211 occurrences- Late Cretaceous99%
- Paleoceneunder 1%
- Eoceneunder 1%
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
30 formations
- Hell Creek Formation · Montana Group96
- Lance Formation40
- Oldman Formation · Belly River Group9
- Judith River Formation · Montana Group8
- Frenchman Formation6
- Scollard Formation · Edmonton Group6
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The named rock units Pediomyidae 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. 2 occurrences have no formation on record, which is common for older literature.
Pediomyidae and its relatives
Late CretaceousWhere Pediomyidae and its relatives were recorded in the Late Cretaceous.
Found in the same rock
670 taxa- Meniscoessus robustus53 sites
- Cimolodon nitidus38 sites
- Didelphodon vorax38 sites
- Protolambda hatcheri37 sites
- Pediomys elegans35 sites
- Hadrosauridae33 sites
- Mesodma thompsoni32 sites
- Myledaphus bipartitus31 sites
- Protolambda florencae31 sites
- Lepisosteus occidentalis29 sites
- Scapherpeton tectum29 sites
- Trionychidae29 sites
- Champsosaurus27 sites
- Paronychodon27 sites
- Ceratopsidae26 sites
- Anura25 sites
- Opisthotriton kayi25 sites
- Gypsonictops hypoconus24 sites
- Cimolomys gracilis23 sites
- Leptalestes krejcii23 sites
- Baenidae22 sites
- Leptalestes cooki22 sites
- Theropoda22 sites
- Tyrannosauridae22 sites
The Paleobiology Database records 116 sites for Pediomyidae, 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
55 references- Fossil mammals from the type Lance Formation, Wyoming. Part II. Marsupialia32
- Synonymies and reidentifications of North American fossil vertebrates and so forth25
- The Bug Creek problem and the Cretaceous-Tertiary transition at McGuire Creek, Montana25
- A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana18
- Mammals from the end of the age of dinosaurs in North Dakota and southeastern Montana, with a reappraisal of geographic differentiation among Lancian mammals9
- Mammal evolution near the Cretaceous-Tertiary Boundary9
- Late Cretaceous mammals of western South Dakota, 19749
- Mammals from the Upper Cretaceous Oldman Formation, Alberta. II. Pediomys Marsh (Marsupialia)6
- Latest Cretaceous mammals of upper part of Edmonton Formation of Alberta, Canada, and review of marsupial-placental dichotomy in mammalian evolution5
- Cretaceous mammals from Montana5
- Preliminary report on the mammals form Lane's Little Jaw Site Quarry: a latest Cretaceous (earliest Puercan?) local fauna, Hell Creek Formation, southeastern Montana4
- New latest Cretaceous mammals from northeastern Colorado with biochronologic and biogeographic implications4
Each of the 211 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. 43 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 Pediomyidae
- Source
- Wikidata/Commons
- Credit
- Frank E. Beddard
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Pediomyidae 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 itPediomyoidea through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Simpson 1927)