Megoreodon grandis

Internet Archive Book Images · No restrictions · 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
- MegoreodonPBDB
- Diet
- herbivorePBDB, for Merycoidodontidae
- Life habit
- ground dwellingPBDB, for Merycoidodontidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 29.5 Mya and 18.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
13 occurrences of Megoreodon grandis 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
13 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
- Harrison Formation · Arikaree Group2
- Gering Formation2
- Peterson Creek Beds Formation1
- Sharps Formation1
- Turtle Butte Formation1
- Sandstone of Inman Ranch Formation1
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The named rock units Megoreodon grandis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Megoreodon grandis and its relatives
OligoceneWhere Megoreodon grandis and its relatives were recorded in the Oligocene.
Found in the same rock
65 taxa- Leptauchenia decora5 sites
- Enhydrocyon pahinsintewakpa4 sites
- Leptauchenia major4 sites
- Archaeocyon leptodus3 sites
- Capacikala gradatus3 sites
- Desmatochoerus megalodon3 sites
- Leptauchenia lullianus3 sites
- Mesoreodon minor3 sites
- Miotylopus leonardi3 sites
- Desmatochoerus hatcheri2 sites
- Diceratherium annectens2 sites
- Diceratherium armatum2 sites
- Florentiamys tiptoni2 sites
- Merycoides cursor2 sites
- Miotylopus gibbi2 sites
- Nanotragulus loomisi2 sites
- Otarocyon cooki2 sites
- Paraenhydrocyon josephi2 sites
- Paramerychyus harrisonensis2 sites
- Phlaocyon minor2 sites
- Pseudolabis dakotensis2 sites
- Allomyinae1 site
- Archaeocyon falkenbachi1 site
- Archaeolagus1 site
The Paleobiology Database records 12 sites for Megoreodon grandis, 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
8 references- Desmatochoerinae, a new subfamily of oreodonts4
- Cenozoic rocks and faunas of Turtle Butte, south-central South Dakota2
- Some new merycoidodonts2
- Biostratigraphy and biochronology of early Arikareean through late Hemingfordian small mammal faunas from the Nebraska Panhandle and adjacent areas1
- Radioisotopically calibrated oreodonts (Mammalia: Artiodactyla) from the late Oligocene of southwestern New Mexico1
- Early Miocene mammals from the Lemhi Valley of Idaho1
- Review of the Miocene Wounded Knee faunas of southwestern South Dakota1
- Contributions to the Stratigraphy and Palaeontology of the Goshen Hole Area, Wyoming. III. A New Basal Oligocene Formation1
Each of the 13 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 Megoreodon grandis
- Source
- Wikidata/Commons
- Credit
- Internet Archive Book Images
- Licence
- No restrictions
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Megoreodon grandis 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 itMegoreodon through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Douglass 1907)