Notharctus

Notharctus is a genus of adapiform primate that lived in North America during the early to middle Eocene. Known from many geologic formations, including the Bridger Basin and the Devil's Graveyard Formation, Notharctus was wide-ranging throughout North America.

Notharctus

Jonathan Chen · CC BY-SA 4.0 · 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
NotharctidaePBDB
Diet
omnivorePBDB, for Primates
Life habit
arborealPBDB, for Primates
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 5.2 million years on record.

The record covers at least 51.1 Mya to 45.9 Mya. No occurrence read is dated outside 56 Mya to 39.7 Mya.

Paleocene — about 0 of 107 occurrencesEocene — about 107 of 107 occurrencesEocene57–56 Mya — about 0.3 occurrences56–55 Mya — about 2 occurrences55–55 Mya — about 2 occurrences55–54 Mya — about 2 occurrences54–54 Mya — about 2 occurrences54–53 Mya — about 2 occurrences53–52 Mya — about 2 occurrences52–52 Mya — about 2 occurrences52–51 Mya — about 2 occurrences51–51 Mya — about 7 occurrences51–50 Mya — about 9 occurrences50–50 Mya — about 9 occurrences50–49 Mya — about 9 occurrences49–48 Mya — about 9 occurrences48–48 Mya — about 9 occurrences48–47 Mya — about 9 occurrences47–47 Mya — about 9 occurrences47–46 Mya — about 9 occurrences46–46 Mya — about 4 occurrences46–45 Mya — about 0.3 occurrences45–44 Mya — about 0.3 occurrences44–44 Mya — about 0.3 occurrences44–43 Mya — about 0.3 occurrences43–43 Mya — about 0.3 occurrences43–42 Mya — about 0.3 occurrences42–42 Mya — about 0.3 occurrences42–41 Mya — about 0.3 occurrences41–40 Mya — about 0.3 occurrences40–40 Mya — about 0.3 occurrences40–39 Mya — about 0.0 occurrences51.1 Mya45.9 Mya56.5 Mya39.2 Mya

107 occurrences of Notharctus 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

107 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

13 formations

Bridger — 42.70°N, 110.10°WBridger — 41.50°N, 110.60°WBridger — 41.70°N, 109.00°WBridger — 41.20°N, 110.50°WBridger — 41.22°N, 109.72°WBridger — 41.80°N, 110.70°WBridger — 41.77°N, 110.33°WBridger — 41.65°N, 110.92°WBridger — 42.37°N, 108.91°WWasatch — 41.70°N, 109.00°WWasatch — 42.70°N, 110.10°WWasatch — 43.20°N, 108.20°WWasatch — 41.80°N, 107.00°WWasatch — 42.07°N, 109.10°WWasatch — 41.75°N, 108.00°WWasatch — 42.37°N, 108.91°WWind River — 43.20°N, 108.20°WWind River — 43.20°N, 107.10°WAycross — 43.70°N, 108.70°WAycross — 43.90°N, 110.80°WWashakie — 40.60°N, 108.10°WWashakie — 41.70°N, 109.00°WWashakie — 41.29°N, 108.47°WGreen River — 41.20°N, 110.50°WGreen River — 41.70°N, 109.00°WGreen River — 40.20°N, 109.90°W"Sheep Pass" — 39.00°N, 114.10°WWapiti — 44.30°N, 109.00°WHart Mine — 34.00°N, 107.00°WHuerfano — 37.80°N, 105.10°WWagon Bed — 41.80°N, 107.00°WFowkes — 41.31°N, 111.02°WDevil's Graveyard — 29.20°N, 103.20°W

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The named rock units Notharctus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Notharctus and its relatives

Eocene

Where Notharctus and its relatives were recorded in the Eocene.

Found in the same rock

548 taxa

The Paleobiology Database records 100 sites for Notharctus, 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

33 references

Each of the 107 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. 21 further references are not listed. 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 content3

Picture of Notharctus

Credit
Jonathan Chen
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Notharctus tenebrosus · University of Colorado Museum of Natural History (UCM):Vertebrate:69990

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

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 itNotharctidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Leidy 1870