Cephalomys

Cephalomys is an extinct genus of rodent that inhabited South America during the Oligocene and Miocene epochs.

Cephalomys

Skye McDavid · CC BY-SA 4.0 · via Wikipedia/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
CephalomyidaePBDB
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 2 million years on record.

The record covers at least 23.04 Mya to 21 Mya. No occurrence read is dated outside 29 Mya to 17.5 Mya.

Oligocene — about 11 of 15 occurrencesOligoceneMiocene — about 4 of 15 occurrencesMiocene29–29 Mya — about 0.5 occurrences29–28 Mya — about 0.7 occurrences28–28 Mya — about 0.7 occurrences28–27 Mya — about 0.7 occurrences27–27 Mya — about 0.7 occurrences27–27 Mya — about 0.8 occurrences27–26 Mya — about 0.8 occurrences26–26 Mya — about 0.8 occurrences26–25 Mya — about 0.8 occurrences25–25 Mya — about 0.8 occurrences25–25 Mya — about 0.8 occurrences25–24 Mya — about 0.8 occurrences24–24 Mya — about 0.8 occurrences24–23 Mya — about 0.8 occurrences23–23 Mya — about 0.7 occurrences23–22 Mya — about 0.7 occurrences22–22 Mya — about 0.7 occurrences22–22 Mya — about 0.7 occurrences22–21 Mya — about 0.7 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 occurrences23.04 Mya21 Mya29.5 Mya17 Mya

15 occurrences of Cephalomys on record. 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

15 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

4 formations

Sarmiento — 45.23°S, 67.49°WSarmiento — 47.03°S, 66.48°WSarmiento — 44.02°S, 68.02°WDeseado — 47.90°S, 66.25°WAgua de la Piedra — 36.55°S, 69.70°WCerro Bandera — 38.92°S, 69.58°W

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

Found in the same rock

118 taxa

The Paleobiology Database records 5 sites for Cephalomys, 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

8 references

Each of the 15 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 content1

Picture of Cephalomys

Credit
Skye McDavid
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

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 itCephalomyidae through timeThe world it lived on

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