Trachytherus

Ghedoghedo · CC BY-SA 4.0 · via Wikidata/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
- MesotheriidaePBDB
- Diet
- herbivorePBDB, for Notoungulata
- Life habit
- scansorialPBDB, for Eutheria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 6.3 million years on record.
The record covers at least 27.3 Mya to 21 Mya. No occurrence read is dated outside 33.9 Mya to 17.5 Mya.
22 occurrences of Trachytherus on record, most of them in the Oligocene. 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
22 occurrencesThese 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
7 formations
- Sarmiento Formation11
- Upper Moquegua Formation3
- Salla Formation1
- Deseado Formation1
- Fray Bentos Formation1
- Agua de la Piedra Formation · Malargüe Group1
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The named rock units Trachytherus 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.
Trachytherus and its relatives
OligoceneWhere Trachytherus and its relatives were recorded in the Oligocene.
Found in the same rock
226 taxa- Archaeohyrax patagonicus6 sites
- Meteutatus lagenaformis5 sites
- Pyrotherium5 sites
- Argyrohyrax proavus4 sites
- Australohyaena antiqua4 sites
- Pharsophorus lacerans4 sites
- Ancylocoelus frequens3 sites
- Caviomorpha3 sites
- Moqueguahippus glycisma3 sites
- Parastrapotherium holmbergi3 sites
- Phorusrhacidae3 sites
- Prohegetotherium3 sites
- Prohegetotherium sculptum3 sites
- Stenotatus3 sites
- Andrewsornis2 sites
- Archaeohyrax suniensis2 sites
- Archaeutatus malaspinensis2 sites
- Asmodeus osborni2 sites
- Borhyaenidae2 sites
- Cephalomyidae2 sites
- Cephalomyopsis2 sites
- Cephalomys arcidens2 sites
- Chubutomys simpsoni2 sites
- Coniopternium2 sites
The Paleobiology Database records 15 sites for Trachytherus, 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- Late Oligocene mesotheriids (Mammalia, Notoungulata) from Salla and Lacayani (Bolivia): implications for basal mesotheriid phylogeny and distribution8
- Loomis, 19143
- Vertebrate paleontology, geology, and geochronology of the Tapera de López and Scarritt Pocket, Chubut Province, Argentina2
- A new species of Trachytherus (Notoungulata: Mesotheriidae) from the late Oligocene (Deseadan) of Southern Peru and the middle latitude diversification of early diverging mesotheriids1
- First Record of Mesotheriidae in the Late Oligocene of Mendoza Province, Argentina1
- Estratigrafía, vertebrados fósiles y evolución tectosedimentaria de los depósitos neógenos del Bloque de San Rafael (Mioceno-Plioceno), Mendoza, Argentina1
- Rodent-like notoungulates (Typotheria) from Gran Barranca, Chubut Province, Argentina: phylogeny and systematics1
- Paleontology and geochronology of the Deseadan (late Oligocene) of Moquegua, Peru1
- Discovery of Deseadan fossils in the upper Moquegua Formation (late Oligocene - ?early Miocene) of southern Peru1
- Un nuevo Trachytheriinae (Mammalia, Notoungulata) del Deseadense (Oligoceno tardío) de Patagonia, Argentina: implicancias en la filogenia, biogeografía y bioestratigrafía de los Mesotheriidae1
- Un nuevo Trachytherus (Notoungulata, Mammalia) en el Terciario de la Faja Subandina, norte de Bolivia1
- Magnetic polarity stratigraphy and Mammalian fauna of the Deseadan (late Oligocene-early Miocene) Salla Beds of Northern Bolivia1
Each of the 22 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 Trachytherus
- Source
- Wikidata/Commons
- Credit
- Ghedoghedo
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Trachytherus 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMesotheriidae through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1889