Hemiacodon

Hemiacodon is a genus of early Eocene omomyid from North America.

Hemiacodon

Uncredited · CC0 · 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
MacrotarsiiniPBDB
Diet
insectivorePBDB, for Omomyidae
Life habit
arborealPBDB, for Omomyidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Omomyidae

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 15 occurrencesEocene — about 15 of 15 occurrencesEocene57–56 Mya — about 0.0 occurrences56–55 Mya — about 0.1 occurrences55–55 Mya — about 0.1 occurrences55–54 Mya — about 0.1 occurrences54–54 Mya — about 0.1 occurrences54–53 Mya — about 0.1 occurrences53–52 Mya — about 0.1 occurrences52–52 Mya — about 0.1 occurrences52–51 Mya — about 0.1 occurrences51–51 Mya — about 0.8 occurrences51–50 Mya — about 1 occurrence50–50 Mya — about 1 occurrence50–49 Mya — about 1 occurrence49–48 Mya — about 1 occurrence48–48 Mya — about 1 occurrence48–47 Mya — about 1 occurrence47–47 Mya — about 1 occurrence47–46 Mya — about 1 occurrence46–46 Mya — about 0.6 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

15 occurrences of Hemiacodon 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

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

6 formations

Bridger — 41.20°N, 110.50°WBridger — 41.70°N, 109.00°WBridger — 41.08°N, 110.10°WWashakie — 40.60°N, 108.10°WWashakie — 41.70°N, 109.00°WWind River — 43.20°N, 107.10°WFowkes — 41.31°N, 111.02°WWiggins — 43.70°N, 108.70°WFriars — 32.90°N, 117.10°W

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The named rock units Hemiacodon has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Hemiacodon and its relatives

Eocene

Where Hemiacodon and its relatives were recorded in the Eocene.

Found in the same rock

203 taxa

The Paleobiology Database records 15 sites for Hemiacodon, 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

10 references

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 content1

Picture of Hemiacodon

Credit
nobody named on the record
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Hemiacodon 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.

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. Marsh 1872