Cephalomys arcidens

No picture of Cephalomys arcidens 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 Cephalomys arcidens, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
CephalomysPBDB
Diet
herbivorePBDB, for Rodentia
Life habit
ground dwellingPBDB, for Rodentia
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At most 12 million years on record.

Every occurrence read is dated to somewhere between 29 Mya and 17.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Oligocene — about 8 of 12 occurrencesOligoceneMiocene — about 4 of 12 occurrencesMiocene29–29 Mya — about 0.5 occurrences29–28 Mya — about 0.6 occurrences28–28 Mya — about 0.6 occurrences28–27 Mya — about 0.6 occurrences27–27 Mya — about 0.6 occurrences27–27 Mya — about 0.6 occurrences27–26 Mya — about 0.6 occurrences26–26 Mya — about 0.6 occurrences26–25 Mya — about 0.6 occurrences25–25 Mya — about 0.6 occurrences25–25 Mya — about 0.6 occurrences25–24 Mya — about 0.6 occurrences24–24 Mya — about 0.6 occurrences24–23 Mya — about 0.6 occurrences23–23 Mya — about 0.6 occurrences23–22 Mya — about 0.6 occurrences22–22 Mya — about 0.6 occurrences22–22 Mya — about 0.6 occurrences22–21 Mya — about 0.6 occurrences21–21 Mya — about 0.3 occurrences21–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–19 Mya — about 0.1 occurrences19–18 Mya — about 0.1 occurrences18–18 Mya — about 0.1 occurrences18–17 Mya — about 0.1 occurrences29.5 Mya17 Mya

12 occurrences of Cephalomys arcidens on record, most of them in the Oligocene. 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

12 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

3 formations

Sarmiento — 45.23°S, 67.49°WSarmiento — 44.02°S, 68.02°WDeseado — 47.90°S, 66.25°WCerro Bandera — 38.92°S, 69.58°W

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

Cephalomys arcidens and its relatives

Oligocene

Where Cephalomys arcidens and its relatives were recorded in the Oligocene.

Found in the same rock

109 taxa

The Paleobiology Database records 3 sites for Cephalomys arcidens, 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

5 references

Each of the 12 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 Cephalomys arcidens 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 Cephalomys arcidens, or no answer at all. This entry cannot say which.

No 3D scan of Cephalomys arcidens 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 itCephalomys through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1897