Protitanotherium
Protitanotherium is an extinct genus of horned brontothere that lived in North America during the Middle Eocene, in the late Uintan land mammal age.

Henry Fairfield Osborn (1857–1935) · Public Domain · 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
- BrontotheriinaePBDB
- Diet
- browserPBDB, for Brontotheriidae
- Life habit
- ground dwellingPBDB, for Brontotheriidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 1.9 million years on record.
The record covers at least 39.7 Mya to 37.71 Mya. No occurrence read is dated outside 45.9 Mya to 23.04 Mya.
9 occurrences of Protitanotherium on record, most of them in the Eocene. 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
9 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
4 formations
Loading coastlines…
The named rock units Protitanotherium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Protitanotherium and its relatives
EoceneWhere Protitanotherium and its relatives were recorded in the Eocene.
Found in the same rock
126 taxa- Amynodon advenus3 sites
- Bunomeryx montanus3 sites
- Colodon3 sites
- Diplacodon3 sites
- Protoreodon pumilus3 sites
- Triplopus obliquidens3 sites
- Baena arenosa2 sites
- Caenolophus2 sites
- Diplobunops matthewi2 sites
- Epihippus gracilis2 sites
- Glyptosaurus2 sites
- Hadrianus corsoni2 sites
- Harpagolestes koreanicus2 sites
- Harpagolestes leotensis2 sites
- Hylomeryx2 sites
- Hyracodon medius2 sites
- Isectolophus annectens2 sites
- Leptoreodon marshi2 sites
- Leptotragulus clarki2 sites
- Leptotragulus medius2 sites
- Leptotragulus proavus2 sites
- Lophialetes2 sites
- Miacidae2 sites
- Microsyops annectens2 sites
The Paleobiology Database records 9 sites for Protitanotherium, 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
6 references- Geochronological and Taxonomic Revisions of the Middle Eocene Whistler Squat Quarry (Devil’s Graveyard Formation, Texas) and Implications for the Early Uintan in Trans-Pecos Texas2
- Magnetic stratigraphy and biostratigraphy of the middle Eocene Uinta Formation, Uinta Basin, Utah2
- The Eocene Vertebrates of the Uinta Basin, Utah2
- Protitanotherium (Mammalia, Perissodactyla) from the Eocene Baca Formation, west-central New Mexico1
- On Cenozoic vertebrates in Korea1
- Eocene mammals found from the Hosan coal-field, Tyosen1
Each of the 9 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 Protitanotherium
- Source
- Wikipedia/Commons
- Credit
- Henry Fairfield Osborn (1857–1935)
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
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 itBrontotheriinae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Osborn 1908