Theosodon gracilis

via iDigBio · CC0 · via iDigBio. 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
- TheosodonPBDB
- Diet
- herbivorePBDB, for Litopterna
- Life habit
- scansorialPBDB, for Eutheria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 4.5 million years on record.
Every occurrence read is dated to somewhere between 20.45 Mya and 15.98 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Theosodon gracilis 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
4 occurrences- Miocene100%
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
2 formations
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The named rock units Theosodon gracilis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Theosodon gracilis and its relatives
MioceneWhere Theosodon gracilis and its relatives were recorded in the Miocene.
Found in the same rock
67 taxa- Hapalops2 sites
- Hegetotherium2 sites
- Hegetotherium mirabile2 sites
- Homalodotherium2 sites
- Nesodon2 sites
- Acarechimys constans1 site
- Acarechimys minutissimus1 site
- Acarechimys minutus1 site
- Acaremys murinus1 site
- Adinotherium1 site
- Anisolophus floweri1 site
- Astrapotheriidae1 site
- Astrapotherium1 site
- Aves1 site
- Caviocricetus guenekko1 site
- Cladosictis1 site
- Cladosictis patagonica1 site
- Dudumus berggreni1 site
- Eocardia1 site
- Eocardia (Dicardia) excavata1 site
- Eocardia robusta1 site
- Eosteiromys annectens1 site
- Hapalops gracilidens1 site
- Hapalops platycephalus1 site
The Paleobiology Database records 3 sites for Theosodon gracilis, 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
3 references- Paleobiology of Santacrucian native ungulates (Meridiungulata: Astrapotheria, Litoptera and Notoungulata)2
- Sedimentology and fossil vertebrates of the Santa Cruz formation (early Miocene) in Lago Posadas, southwestern Patagonia, Argentina1
- A new fossil mammal assemblage from the southern Chilean Andes: implications for geology, geochronology, and tectonics1
Each of the 4 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Theosodon gracilis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Theosodon gracilis 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itTheosodon through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1891