Macrotarsius

Macrotarsius is an extinct genus of omomyid that inhabited North America and East Asia during the Eocene epoch.

Tephrodornis pondicerianus pondicerianus (Gmelin, 1789), a relative of Macrotarsius — not Macrotarsius itself

Not Macrotarsius. This is Tephrodornis pondicerianus pondicerianus (Gmelin, 1789), a relative.

Sarthak Awhad · CC BY-NC 4.0 · via GBIF. 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
MacrotarsiiniPBDB
Diet
insectivorePBDB, for Omomyidae
Life habit
arborealPBDB, for Omomyidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Omomyidae

Time the record covers

At most 12 million years on record.

Every occurrence read is dated to somewhere between 48.07 Mya and 37 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 14 of 14 occurrencesEocene48–48 Mya — about 0.0 occurrences48–47 Mya — about 0.0 occurrences47–47 Mya — about 0.0 occurrences47–47 Mya — about 0.0 occurrences47–46 Mya — about 0.0 occurrences46–46 Mya — about 0.3 occurrences46–45 Mya — about 0.8 occurrences45–45 Mya — about 0.8 occurrences45–45 Mya — about 0.8 occurrences45–44 Mya — about 0.8 occurrences44–44 Mya — about 0.8 occurrences44–43 Mya — about 0.8 occurrences43–43 Mya — about 0.8 occurrences43–43 Mya — about 0.8 occurrences43–42 Mya — about 0.8 occurrences42–42 Mya — about 0.8 occurrences42–41 Mya — about 0.8 occurrences41–41 Mya — about 0.8 occurrences41–41 Mya — about 0.8 occurrences41–40 Mya — about 0.8 occurrences40–40 Mya — about 0.8 occurrences40–39 Mya — about 0.4 occurrences39–39 Mya — about 0.3 occurrences39–39 Mya — about 0.3 occurrences39–38 Mya — about 0.3 occurrences38–38 Mya — about 0.3 occurrences38–37 Mya — about 0.3 occurrences37–37 Mya — about 0.2 occurrences48.6 Mya36.5 Mya

14 occurrences of Macrotarsius 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

14 occurrences

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

7 formations

Wagon Bed ("Tepee Trail") — 43.20°N, 107.10°WWiggins — 43.70°N, 108.70°WColmena Tuff — 29.90°N, 104.20°WLaredo — 27.53°N, 99.43°WUinta — 40.07°N, 109.70°WSespe — 34.30°N, 119.00°WCypress Hills — 50.00°N, 107.90°W

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The named rock units Macrotarsius has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Macrotarsius and its relatives

Eocene

Where Macrotarsius and its relatives were recorded in the Eocene.

Found in the same rock

268 taxa

The Paleobiology Database records 14 sites for Macrotarsius, 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

Each of the 14 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 Tephrodornis pondicerianus pondicerianus (Gmelin, 1789)

Source
GBIF
Credit
Sarthak Awhad
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Macrotarsius jepseni · ypm:vp:ypm vppu 016431

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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 itMacrotarsiini through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Clark 1941