Mylohyus nasutus
Mylohyus is an extinct genus of peccary found in North and Central America. It first evolved during the Late Miocene and became extinct at the end of the Pleistocene, around 12,000 years ago, during the Late Pleistocene megafaunal extinction.

Reynosa Blogs from Reynosa Tamaulipas, Mexico · CC BY 2.0 · 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
- MylohyusPBDB
- Diet
- browser, grazerPBDB, for Mylohyus
- Life habit
- ground dwellingPBDB, for Tayassuidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At least 81 thousand years on record.
The record covers at least 210 ka to 129 ka. No occurrence read is dated outside 2.58 Mya to 0 Mya.
20 occurrences of Mylohyus nasutus on record, most of them in the Pleistocene. 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- Pleistocene99%
- Holoceneunder 1%
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
1 formation
Loading coastlines…
The named rock units Mylohyus nasutus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 19 occurrences have no formation on record, which is common for older literature.
Mylohyus nasutus and its relatives
PleistoceneWhere Mylohyus nasutus and its relatives were recorded in the Pleistocene.
Found in the same rock
351 taxa- Procyon lotor9 sites
- Equus8 sites
- Odocoileus virginianus8 sites
- Ursus americanus7 sites
- Aenocyon dirus6 sites
- Castor canadensis6 sites
- Dasypus bellus6 sites
- Mammut americanum6 sites
- Neotoma floridana6 sites
- Scalopus aquaticus6 sites
- Sylvilagus floridanus6 sites
- Coluber5 sites
- Crotalus5 sites
- Ectopistes migratorius5 sites
- Lynx rufus5 sites
- Meleagris gallopavo5 sites
- Peromyscus5 sites
- Puma concolor5 sites
- Tapirus (Helicotapirus) veroensis5 sites
- Anolis carolinensis4 sites
- Canis4 sites
- Didelphis virginiana4 sites
- Mammuthus columbi4 sites
- Mephitis mephitis4 sites
The Paleobiology Database records 20 sites for Mylohyus nasutus, 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
17 references- Sabertooth cat, Smilodon floridanus (Leidy), and associated fauna from a Tennessee Cave (40 Dv 40), the First American Bank site4
- Platygonus cf. P. vetus from the middle Pleistocene (late Irvingtonian) Fairmead Landfill locality, Madera County, California1
- A late Pleistocene and early Holocene mammalian fauna from Little Beaver Cave, Central Ozarks, Missouri.1
- Late Rancholabrean mammals from south- ernmost Florida, and the Neotropical influence in Florida Pleistocene faunas1
- Additional records of the giant beaver, Castoroides, from the Mid-South: Alabama, Tennessee, and South Carolina1
- Taphonomy of a late Pleistocene carnivore den, Dade County, Florida1
- Quaternary Vertebrates from the Virginia Coastal Plain1
- Late Pleistocene records of caribou and elk from Georgia and Alabama1
- Quaternary vertebrate localities of Virginia and their avian and mammalian fauna1
- Late Pleistocene Fauna of the Hollidaysburg Fissure1
- A long-nosed peccary (Mylohyus nasutus) from Knob Rock Cave, Indiana1
- Development and eruption sequence of deciduous and permanent teeth in the saber-tooth cat Homotherium serum Cope1
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. 5 further references are not listed. 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 Mylohyus nasutus
- Source
- Wikipedia/Commons
- Credit
- Reynosa Blogs from Reynosa Tamaulipas, Mexico
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
No 3D scan of Mylohyus nasutus 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
- Source
- Wikipedia, “Mylohyus”
- 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 itMylohyus through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Leidy 1868)