Bryceomys

Bryceomys is an extinct genus of mammal that lived during the Late Cretaceous period and thus shared the world with dinosaurs. It was a member of the extinct order Multituberculata, within the suborder Cimolodonta and the informal Paracimexomys group. The genus is known only from isolated teeth recovered in Utah, United States. It was named by Eaton J.G. in 1995; the name means "Bryce mouse", after Bryce Canyon National Park.

No picture of Bryceomys was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Bryceomys, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
CimolodontaPBDB
Diet
herbivorePBDB, for Multituberculata
Life habit
arborealPBDB, for Multituberculata
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Mammalia

Time the record covers

At least 16 million years on record.

The record covers at least 100.5 Mya to 83.6 Mya. No occurrence read is dated outside 121.4 Mya to 72.2 Mya.

Early Cretaceous — about 1 of 20 occurrencesEarly CretaceousLate Cretaceous — about 19 of 20 occurrencesLate Cretaceous122–121 Mya — about 0.0 occurrences121–119 Mya — about 0.1 occurrences119–117 Mya — about 0.1 occurrences117–116 Mya — about 0.1 occurrences116–114 Mya — about 0.1 occurrences114–112 Mya — about 0.1 occurrences112–110 Mya — about 0.1 occurrences110–109 Mya — about 0.1 occurrences109–107 Mya — about 0.1 occurrences107–105 Mya — about 0.2 occurrences105–104 Mya — about 0.2 occurrences104–102 Mya — about 0.2 occurrences102–100 Mya — about 0.6 occurrences100–99 Mya — about 2 occurrences99–97 Mya — about 2 occurrences97–95 Mya — about 2 occurrences95–93 Mya — about 3 occurrences93–92 Mya — about 3 occurrences92–90 Mya — about 3 occurrences90–88 Mya — about 0.3 occurrences87–85 Mya — about 0.1 occurrences85–83 Mya — about 0.2 occurrences83–81 Mya — about 0.3 occurrences81–80 Mya — about 0.3 occurrences80–78 Mya — about 0.3 occurrences78–76 Mya — about 0.3 occurrences76–75 Mya — about 0.3 occurrences75–73 Mya — about 0.3 occurrences73–71 Mya — about 0.1 occurrences100.5 Mya83.6 Mya122 Mya71 Mya

20 occurrences of Bryceomys on record, most of them in the Late Cretaceous. 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

20 occurrences

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

7 formations

Cedar Mountain — 39.00°N, 111.00°WCedar Mountain — 38.66°N, 111.24°WCedar Mountain — 38.94°N, 111.08°WStraight Cliffs — 37.60°N, 111.97°WStraight Cliffs — 37.80°N, 111.50°WStraight Cliffs — 37.64°N, 112.06°WIron Springs — 37.37°N, 113.35°WIron Springs — 37.90°N, 112.74°WNaturita — 37.80°N, 111.50°WWahweap — 37.59°N, 112.90°WCloverly — 44.51°N, 107.90°WWayan — 43.18°N, 111.12°W

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The named rock units Bryceomys has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Bryceomys and its relatives

Late Cretaceous

Where Bryceomys and its relatives were recorded in the Late Cretaceous.

Found in the same rock

201 taxa

The Paleobiology Database records 16 sites for Bryceomys, 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

7 references

Each of the 20 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 Bryceomys was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Bryceomys, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itCimolodonta through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Eaton 1995