Eotylopus

James St. John · CC BY 2.0 · 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
- OromerycidaePBDB
- Diet
- browserPBDB, for Oromerycidae
- Life habit
- ground dwellingPBDB, for Oromerycidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At most 5.8 million years on record.
Every occurrence read is dated to somewhere between 39.7 Mya and 33.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
15 occurrences of Eotylopus 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
15 occurrences- Eocene100%
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
5 formations
- White River Formation8
- Sespe Formation1
- Devil's Graveyard Formation1
- Cypress Hills Formation1
- Chadron Formation1
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The named rock units Eotylopus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Eotylopus and its relatives
EoceneWhere Eotylopus and its relatives were recorded in the Eocene.
Found in the same rock
238 taxa- Brontotheriidae8 sites
- Ischyromys veterior8 sites
- Brachyrhynchocyon7 sites
- Didelphidae7 sites
- Hesperocyon gregarius7 sites
- Hypisodus7 sites
- Leptomeryx speciosus7 sites
- <Novacek leptictid>6 sites
- Dinictis6 sites
- Douglassciurus jeffersoni6 sites
- Hyracodon priscidens6 sites
- Megalagus brachyodon6 sites
- Palaeolagus temnodon6 sites
- Trigenicus profectus6 sites
- Adjidaumo minimus5 sites
- Archaeotherium coarctatum5 sites
- Centetodon chadronensis5 sites
- Daphoenictis5 sites
- Equidae5 sites
- Leptomeryx mammifer5 sites
- Penetrigonias dakotensis5 sites
- Ankylodon4 sites
- Apternodus brevirostris4 sites
- Bathygenys4 sites
The Paleobiology Database records 15 sites for Eotylopus, 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
9 references- Mammalian Range Zones in the Chadronian White River Formation at Flagstaff Rim, Wyoming6
- Stratigraphic Occurrence and Correlation of Early Tertiary Vertebrate Faunas Trans-Pecos Texas. Part I: Vieja Area2
- Eocene-Oligocene faunas of the Cypress Hills Formation, Saskatchewan1
- Stratigraphic Occurrence and Correlation of Early Tertiary Vertebrate Faunas, Trans-Pecos Texas: Agua Fria-Green Valley Areas1
- Oligocene calibration of the magnetic polarity time scale1
- Summary of known occurrences of terrestrial vertebrates from Eocene strata of southern California1
- Early Tertiary Vertebrate Faunas Big Bend Area Trans-Pecos Texas: Brontotheriidae1
- A contribution to the Tertiary geology and paleontology of northeastern Colorado1
- On the skull of Apternodus and the skeleton of a new artiodactyl1
Each of the 15 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 content2

Picture of Eotylopus
- Source
- Wikidata/Commons
- Credit
- James St. John
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Eotylopus reedi · amnh:fm:47394
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 itOromerycidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Matthew 1910