Steiromys

Steiromys is an extinct genus of caviomorph rodent that lived in South America during the Miocene epoch.

Steiromys

Museo Nacional de Buenos Aires · Public Domain · 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
ErethizontoideaPBDB
Diet
herbivorePBDB, for Rodentia
Life habit
arborealPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB

Time the record covers

At least 15 million years on record.

The record covers at least 27.3 Mya to 11.63 Mya. No occurrence read is dated outside 33.9 Mya to 7.246 Mya.

Eocene — about 0 of 36 occurrencesOligocene — about 1 of 36 occurrencesOligoceneMiocene — about 35 of 36 occurrencesMiocene34–34 Mya — about 0.1 occurrences34–33 Mya — about 0.1 occurrences33–32 Mya — about 0.1 occurrences32–31 Mya — about 0.1 occurrences31–30 Mya — about 0.1 occurrences30–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–27 Mya — about 0.1 occurrences21–20 Mya — about 2 occurrences20–19 Mya — about 3 occurrences19–18 Mya — about 3 occurrences18–17 Mya — about 12 occurrences17–16 Mya — about 11 occurrences16–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–13 Mya — about 0.7 occurrences13–12 Mya — about 1.0 occurrences12–11 Mya — about 1 occurrence11–10 Mya — about 0.6 occurrences10–9.5 Mya — about 0.2 occurrences9.5–8.6 Mya — about 0.2 occurrences8.6–7.6 Mya — about 0.2 occurrences7.6–6.7 Mya — about 0.1 occurrences27.3 Mya11.63 Mya34.4 Mya6.7 Mya

36 occurrences of Steiromys on record, most of them in the Miocene. 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

36 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

6 formations

Santa Cruz — 51.20°S, 69.12°WSanta Cruz — 50.28°S, 70.22°WSanta Cruz — 50.28°S, 70.28°WSanta Cruz — 50.16°S, 69.68°WSanta Cruz — 50.05°S, 70.44°WPinturas — 46.99°S, 70.59°WPinturas — 47.03°S, 70.67°WGalera — 46.90°S, 72.30°WVillavieja — 3.26°N, 75.20°WVillavieja — 3.32°N, 75.13°WPebas — 7.36°S, 74.96°WCerro Boleadoras — 47.00°S, 71.62°W

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The named rock units Steiromys has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Steiromys and its relatives

Miocene

Where Steiromys and its relatives were recorded in the Miocene.

Found in the same rock

221 taxa

The Paleobiology Database records 19 sites for Steiromys, 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

12 references

Each of the 36 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 Steiromys

Credit
Museo Nacional de Buenos Aires
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Steiromys 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.

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 itErethizontoidea through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1887