Heterohyus

Heterohyus is an extinct genus of apatemyid from the early to late Eocene. A small, tree-dwelling creature with elongated fore- and middle fingers, in these regards it somewhat resembled a modern-day aye-aye.

Heterohyus

Chris Woodrich · 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
ApatemyidaePBDB
Diet
herbivorePBDB, for Apatemyidae
Life habit
arborealPBDB, for Apatemyidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Apatemyidae

Time the record covers

At least 10 million years on record.

The record covers at least 48.07 Mya to 37.71 Mya. No occurrence read is dated outside 56 Mya to 33.9 Mya.

Paleocene — about 0 of 31 occurrencesEocene — about 31 of 31 occurrencesEoceneOligocene — about 0 of 31 occurrences57–56 Mya — about 0.3 occurrences56–55 Mya — about 0.8 occurrences55–54 Mya — about 0.8 occurrences54–53 Mya — about 0.8 occurrences53–53 Mya — about 0.8 occurrences53–52 Mya — about 0.8 occurrences52–51 Mya — about 0.8 occurrences51–50 Mya — about 0.8 occurrences50–50 Mya — about 0.8 occurrences50–49 Mya — about 0.8 occurrences49–48 Mya — about 0.8 occurrences48–47 Mya — about 0.3 occurrences47–46 Mya — about 0.3 occurrences46–46 Mya — about 0.3 occurrences46–45 Mya — about 0.3 occurrences45–44 Mya — about 0.3 occurrences44–43 Mya — about 0.3 occurrences43–43 Mya — about 0.3 occurrences43–42 Mya — about 0.3 occurrences42–41 Mya — about 0.3 occurrences41–40 Mya — about 3 occurrences40–40 Mya — about 3 occurrences40–39 Mya — about 3 occurrences39–38 Mya — about 3 occurrences38–37 Mya — about 2 occurrences37–36 Mya — about 2 occurrences36–36 Mya — about 2 occurrences36–35 Mya — about 2 occurrences35–34 Mya — about 2 occurrences34–33 Mya — about 0.6 occurrences48.07 Mya37.71 Mya56.5 Mya33.4 Mya

31 occurrences of Heterohyus 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

31 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

10 formations

Lignites de Soissonais — 49.05°N, 4.00°ELignites de Soissonais — 49.08°N, 4.03°ECreechbarrow Limestone — 50.65°N, 2.12°WPerrière — 44.37°N, 1.73°EPerrière — 44.38°N, 1.43°EBembridge Limestone — 50.67°N, 1.55°WHeadon Beds — 50.72°N, 1.59°WPerriere — 44.35°N, 1.73°ESilveirinha — 40.01°N, 8.82°WHeadon Hill — 50.67°N, 1.54°WCollegats — 42.25°N, 1.08°ECorca — 42.02°N, 0.70°E

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The named rock units Heterohyus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.

Heterohyus and its relatives

Eocene

Where Heterohyus and its relatives were recorded in the Eocene.

Found in the same rock

519 taxa

The Paleobiology Database records 19 sites for Heterohyus, 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

14 references

Each of the 31 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. 2 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 content1

Picture of Heterohyus

Credit
Chris Woodrich
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itApatemyidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gervais 1848