Astrapotheria
Astrapotheria is an extinct order of South American and Antarctic hoofed mammals that existed from the late Paleocene to the Middle Miocene, 59 to 11.8 million years ago. Astrapotheres were large, rhinoceros-like animals and have been called one of the most bizarre orders of mammals with an enigmatic evolutionary history.

Gastón Cuello · CC BY-SA 3.0 · 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
- SudamericungulataPBDB
- Diet
- herbivorePBDB
- Life habit
- scansorialPBDB, for Eutheria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 55 million years on record.
The record covers at least 56 Mya to 11.7 ka. No occurrence read is dated outside 59.24 Mya to 0 Mya.
251 occurrences of Astrapotheria 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
251 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
41 formations
- Sarmiento Formation57
- Santa Cruz Formation29
- Villavieja Formation · Honda Group25
- La Victoria Formation · Honda Group8
- Las Flores Formation · Río Chico Group6
- Cerro Bandera Formation6
Loading coastlines…
The named rock units Astrapotheria has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 further formations hold fewer occurrences each and are not listed. 52 occurrences have no formation on record, which is common for older literature.
Astrapotheria and its relatives
MioceneWhere Astrapotheria and its relatives were recorded in the Miocene.
Found in the same rock
1,202 taxa- Granastrapotherium snorki18 sites
- Astrapotherium16 sites
- Trigonostylops wortmani16 sites
- Hapalops15 sites
- Astrapotheriidae14 sites
- Astrapotherium magnum13 sites
- Notopithecus adapinus13 sites
- Adinotherium12 sites
- Nesodon12 sites
- Protypotherium12 sites
- Prozaedyus12 sites
- Trigonostylops12 sites
- Propalaehoplophoridae11 sites
- Antepithecus brachystephanus10 sites
- Caviomorpha10 sites
- Henricosbornia lophodonta10 sites
- Mammalia10 sites
- Mylodontidae10 sites
- Neoreomys australis10 sites
- Notostylops murinus10 sites
- Protypotherium praerutilum10 sites
- Xenastrapotherium kraglievichi10 sites
- Acarechimys minutus9 sites
- Adinotherium ovinum9 sites
The Paleobiology Database records 142 sites for Astrapotheria, 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
85 references- Uruguaytheriine Astrapotheres of Tropical South America30
- The beginning of the age of mammals in South America. Part II18
- Biostratigraphy of the Casamayoran, Early Eocene of Patagonia14
- Noticias preliminares sobre nuevos mamíferos fósiles del Cretáceo superior y Terciario inferior de la Patagonia11
- Astrapotheres from the Miocene of Colombia, South America10
- Bioestratigrafía de la Formación Santa Cruz (Mioceno Inferior) en el extremo sudeste de la Patagonia9
- Notices préliminaires sur des ongulés nouveaux des terrains crétacés de Patagonie [Preliminary notes on new ungulates from the Cretaceous terrains of Patagonia]8
- Cranial morphology and phylogenetic relationships of Trigonostylops wortmani, an Eocene South American native ungulate6
- Revision of Parastrapotherium (Mammalia, Astrapotheria) and other Deseadan astrapotheres of Patagonia6
- Vertebrate paleontology, geology, and geochronology of the Tapera de López and Scarritt Pocket, Chubut Province, Argentina6
- Nuevas especies de mamíferos, cretáceos y terciarios de la República Argentina [New species of mammals, Cretaceous and Tertiarty, from the Argentine Republic]6
- Georeferencing fossiliferous localities from Solimões and Acre Basins (Brazil) -what we know so far about Solimões Formation and future perspectives5
Each of the 251 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. 73 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 Astrapotheria
- Source
- Wikipedia/Commons
- Credit
- Gastón Cuello
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Astrapotheria was found in MorphoSource and Sketchfab.
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
- 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 itSudamericungulata through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lydekker 1894