Tayassu
Tayassu is a genus of peccary. The only extant species is the white-lipped peccary. Collared peccary is suggested now as a possible member of same genus. At least one extinct species, T. edensis, has been placed in the genus. Many sources regard Dicotyles as a synonym. As of December 2025, the Paleobiology Database regarded Dicotyles as a separate genus.

-JvL- from Netherlands · 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
- TayassuiniPBDB
- Diet
- herbivore, omnivorePBDB, for Tayassuidae
- Life habit
- ground dwellingPBDB, for Tayassuidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At least 4.6 million years on record.
The record covers at least 4.7 Mya to 11.7 ka. No occurrence read is dated outside 9.4 Mya to 0 Mya.
45 occurrences of Tayassu 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
45 occurrences- Miocene2%
- Pliocene2%
- Pleistocene84%
- Holocene12%
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
10 formations
- Mesa Formation2
- Mt. Eden Formation1
- Luján Formation1
- Tezanos Pinto Formation1
- Santa Vitória Formation1
- Capadare Formation1
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The named rock units Tayassu has been recovered from, largest first. Drawn where the rock is now, not where it formed. 34 occurrences have no formation on record, which is common for older literature.
Tayassu and its relatives
PleistoceneWhere Tayassu and its relatives were recorded in the Pleistocene.
Found in the same rock
345 taxa- Pecari tajacu14 sites
- Mazama11 sites
- Cuniculus paca9 sites
- Smilodon populator9 sites
- Glyptodon clavipes8 sites
- Hippidion8 sites
- Equus7 sites
- Notiomastodon platensis7 sites
- Palaeolama major7 sites
- Pampatherium7 sites
- Panthera onca7 sites
- Tapirus terrestris7 sites
- Catonyx cuvieri6 sites
- Dasypus (Dasypus) novemcinctus6 sites
- Macrauchenia patagonica6 sites
- Megatherium americanum6 sites
- Neosclerocalyptus6 sites
- Propraopus sulcatus6 sites
- Tolypeutes6 sites
- Toxodon6 sites
- Chaetophractus villosus5 sites
- Dasypus5 sites
- Galea5 sites
- Glossotherium robustum5 sites
The Paleobiology Database records 40 sites for Tayassu, 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
29 references- Two new genera of peccaries (Mammalia, Artiodactyla, Tayassuidae) from Upper Miocene deposits of the Amazon Basin8
- Record of tayassuids in ?Late Pliocene to Quaternary deposits in Venezuela6
- La faune de vertébrés du Pléistocéne supérieur de l’aire archéologique de São Raimundo Nonato (Piauí, Brésil)3
- Diversity and preservation of Pleistocene tetrapods from caves of southwestern Bahia, Brazil2
- Fossil Pleistocene to Sub-Recent Mammals from Northeastern Brazil. I - Edentata Megalonychidae2
- Paleofauna del Pleistoceno de Termas de Rio Hondo, Santiago del Estero, Argentina1
- Late Quaternary caviomorph rodents (Rodentia: Hystricognathi) from the Serra da Capivara, northeastern Brazil, with description of a new taxon1
- Registros de la Paleofauna del Pleistoceno tardio - Holoceno temprano del Partido de Marcos Paz, noreste de la provincia de Buenos Aires1
- El registro de Tayassu pecari (Link, 1795) (Artiodactyla, Tayassuidae) en el Pleistoceno Tardío de la provincia de Santa Fe, Argentina. Aspectos biogeográ cos y de distribución de una especie en retracción1
- A preliminary assessment of the mammalian fauna from the Pliocene-Pleistocene El Breal de Orocual locality, Monagas state, Venezuela1
- The Campo Laborde site: New evidence for the Holocene survival of Pleistocene megafauna in the Argentine Pampas1
- Quaternary mammals from Serra do Bodoquena, Mato Grosso do Sul, Brazil1
Each of the 45 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. 17 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 content2
Picture of Tayassu
- Source
- Wikipedia/Commons
- Credit
- -JvL- from Netherlands
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
Photogrammetry
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Tayassu sp. · UWBM:Mammalogy:UWBM:Mamm:85991
Smithsonian Open Access was 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, “Tayassu”
- 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 itTayassuini through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Fischer 1814