Oxymycterus

Oxymycterus is a genus of rat-like rodents commonly known as hocicudos. They are endemic to South America. As of April 2019, the genus contains the following 16 species:O. akodontius Thomas, 1921 Argentine hocicudo O. amazonicus Herzhkovitz, 1994 Amazon hocicudo O. angularis Thomas, 1909 angular hocicudo O. caparaoe Hershkovitz, 1998 Caparao hocicudo O. dasytrichus (Schinz, 1821) Atlantic Forest hocicudo O. delator Thomas, 1903 spy hocicudo O. hiska Hinojosa, Anderson & Patton, 1987 small hocicudo O. hispidus Pictet, 1843 hispid hocicudo O. hucucha Hinojosa, Anderson & Patton, 1987 Quechuan hocicudo O. inca Thomas, 1900 Incan hocicudo O. itapeby Peçanha et al. 2019 Itapevi hocicudo O. josei Hoffmann, Lessa & Smith, 2002 Cook's hocicudo O. nasutus (Waterhouse, 1837) long-nosed hocicudo O. paramensis Paramo hocicudo O. quaestor Thomas, 1903 Quaestor hocicudo O. roberti Thomas, 1901 Robert's hocicudo O. rufus (Fischer, 1814) red hocicudo O. wayku Jayat et al., 2008 ravine hocicudo

Oxymycterus

Bell, Thomas; Darwin, Charles; Gould, Elizabeth; Gould, John; Owen, Richard; Waterhouse, G. R. · 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
Also called
hocicudoPBDB
Sits inside
AkodontiniPBDB
Diet
herbivorePBDB, for Rodentia
Life habit
semifossorialPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 762 thousand years on record.

The record covers at least 774 ka to 11.7 ka. No occurrence read is dated outside 2.58 Mya to 0 Mya.

Pliocene — about 0 of 6 occurrencesPleistocene — about 5 of 6 occurrencesPleistoceneHolocene — about 1 of 6 occurrences2.7–2.6 Mya — about 0.0 occurrences2.6–2.5 Mya — about 0.1 occurrences2.5–2.4 Mya — about 0.1 occurrences2.4–2.3 Mya — about 0.1 occurrences2.3–2.2 Mya — about 0.1 occurrences2.2–2.1 Mya — about 0.1 occurrences2.1–2.0 Mya — about 0.1 occurrences2.0–1.8 Mya — about 0.1 occurrences1.8–1.7 Mya — about 0.1 occurrences1.7–1.6 Mya — about 0.1 occurrences1.6–1.5 Mya — about 0.1 occurrences1.5–1.4 Mya — about 0.1 occurrences1.4–1.3 Mya — about 0.1 occurrences1.3–1.2 Mya — about 0.1 occurrences1.2–1.1 Mya — about 0.1 occurrences1.1–1.0 Mya — about 0.1 occurrences1.0–924 ka Mya — about 0.1 occurrences924 ka–821 ka Mya — about 0.1 occurrences821 ka–719 ka Mya — about 0.1 occurrences719 ka–616 ka Mya — about 0.2 occurrences616 ka–513 ka Mya — about 0.2 occurrences513 ka–411 ka Mya — about 0.2 occurrences411 ka–308 ka Mya — about 0.2 occurrences308 ka–205 ka Mya — about 0.2 occurrences205 ka–103 ka Mya — about 1 occurrence103 ka–0 Mya — about 3 occurrences774 ka11.7 ka3.08 Mya0 Mya

6 occurrences of Oxymycterus on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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

6 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

Tarija — 21.53°S, 64.73°WTafí del Valle — 26.92°S, 65.70°WBotucatu — 29.56°S, 51.40°W

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The named rock units Oxymycterus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Oxymycterus and its relatives

Pleistocene

Where Oxymycterus and its relatives were recorded in the Pleistocene.

Found in the same rock

143 taxa

The Paleobiology Database records 5 sites for Oxymycterus, 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

6 references

Each of the 6 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 Oxymycterus

Credit
Bell, Thomas; Darwin, Charles; Gould, Elizabeth; Gould, John; Owen, Richard; Waterhouse, G. R.
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Oxymycterus 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 itAkodontini through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Waterhouse 1837