Paucituberculata
Paucituberculata is an order of South American marsupials. Although currently represented only by the seven living species of shrew opossums, this order was formerly much more diverse, with more than 60 extinct species named from the fossil record, particularly from the late Oligocene to early Miocene epochs. The earliest paucituberculatans date to the late Paleocene. The group went through a pronounced decline in the middle Miocene epoch, which resulted in the extinction of all families of this order except for the living shrew opossums (Caenolestidae). Extinct families of Paucituberculatans include Pichipilidae, Palaeothentidae, and Abderitidae.

Jbritomolina · CC BY-SA 4.0 · 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
- MarsupialiaPBDB
- Diet
- omnivorePBDB, for Marsupialia
- Life habit
- scansorialPBDB, for Marsupialia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Mammalia
Time the record covers
At least 43 million years on record.
The record covers at least 48.07 Mya to 5 Mya. No occurrence read is dated outside 56 Mya to 3 Mya.
225 occurrences of Paucituberculata on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
225 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
29 formations
- Santa Cruz Formation90
- Sarmiento Formation26
- Pinturas Formation19
- Pozo Formation17
- Río Frias Formation7
- Chambira Formation6
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The named rock units Paucituberculata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 further formations hold fewer occurrences each and are not listed. 10 occurrences have no formation on record, which is common for older literature.
Paucituberculata and its relatives
MioceneWhere Paucituberculata and its relatives were recorded in the Miocene.
Found in the same rock
947 taxa- Acdestis oweni22 sites
- Palaeothentes minutus18 sites
- Palaeothentes lemoinei16 sites
- Caviomorpha14 sites
- Neoreomys australis14 sites
- Sipalocyon gracilis14 sites
- Acarechimys minutissimus13 sites
- Protypotherium13 sites
- Prozaedyus13 sites
- Borhyaena tuberata12 sites
- Cladosictis patagonica12 sites
- Palaeothentes intermedius12 sites
- Prolagostomus12 sites
- Acarechimys minutus11 sites
- Nesodon11 sites
- Octodontoidea11 sites
- Perimys11 sites
- Acarechimys10 sites
- Adinotherium10 sites
- Astrapotherium10 sites
- Microbiotherium tehuelchum10 sites
- Protypotherium praerutilum10 sites
- Stenotatus10 sites
- Hapalops9 sites
The Paleobiology Database records 80 sites for Paucituberculata, 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
50 references- Systematics, Biostratigraphy, and Dental Evolution of the Palaeothentidae, Later Oligocene to Early-Middle Miocene (Deseadan-Santacrucian) Caenolestoid Marsupials of South America40
- Paleoecology of the Paucituberculata and Microbiotheria (Mammalia, Marsupialia) from the late Early Miocene of Argentina33
- The Metatheria from the Río Santa Cruz (Santa Cruz Formation, Early-Middle Miocene, Argentina): History and new records14
- Systematics of the South American marsupial family Microbiotheriidae13
- Biotic community and landscape changes around the Eocene–Oligocene transition at Shapaja, Peruvian Amazonia: Regional or global drivers?12
- A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru12
- Fossil Marsupialia from the type Friasian Land Mammal Age (Miocene), Alto Rio Cisnes, Aisen, Chile7
- Paleoenvironmental reconstruction of the coastal Monte Leon and Santa Cruz formations (Early Miocene) at Rincon del Buque, Southern Patagonia: A revisited locality6
- Middle Tertiary marsupials from central Patagonia (early Oligocene of Gran Barranca): understanding South America's Grande Coupure6
- The Deseadan, Early Oligocene, Marsupialia of South America5
- New metatherians from Collon Cura Formation at Cerro Zeballos (Middle Miocene), Chubut province, Argentina4
- Review of the extinct ‘shrew-opossums’ (Marsupialia: Caenolestidae), with descriptions of two new genera and three new species from the Early Miocene of southern South America4
Each of the 225 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. 38 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 Paucituberculata
- Source
- Wikipedia/Commons
- Credit
- Jbritomolina
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Paucituberculata 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 itMarsupialia through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Ameghino 1894)