Macrotarsius jepseni

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
- MacrotarsiusPBDB
- Diet
- insectivorePBDB, for Omomyidae
- Life habit
- arborealPBDB, for Omomyidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Omomyidae
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 45.9 Mya and 39.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Macrotarsius jepseni 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
2 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
2 formations
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The named rock units Macrotarsius jepseni has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Macrotarsius jepseni and its relatives
EoceneWhere Macrotarsius jepseni and its relatives were recorded in the Eocene.
Found in the same rock
97 taxa- Amynodon advenus2 sites
- Mytonomys robustus2 sites
- Protoreodon parvus2 sites
- Allaeochelys1 site
- Allognathosuchus1 site
- Anura1 site
- Arius1 site
- Aves1 site
- Baptemys1 site
- Bombacacidites1 site
- Boverisuchus vorax1 site
- Brachidontes1 site
- Bunomeryx montanus1 site
- Bythocypris1 site
- Caimaninae1 site
- Carcharhinus1 site
- Centetodon pulcher1 site
- Chiroptera1 site
- Crassostrea1 site
- Cylindracanthus1 site
- Cylindrodontidae1 site
- Dasyatis1 site
- Decapoda1 site
- Diaphyodus1 site
The Paleobiology Database records 2 sites for Macrotarsius jepseni, 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
2 references- Magnetic stratigraphy and biostratigraphy of the middle Eocene Uinta Formation, Uinta Basin, Utah1
- Biostratigraphic implications of the first Eocene land-mammal fauna from the North American coastal plain1
Each of the 2 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 Macrotarsius jepseni
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Macrotarsius jepseni 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 itMacrotarsius through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Robinson 1968)