Helohyus

Helohyus

via iDigBio · 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
HelohyidaePBDB
Diet
herbivore, omnivorePBDB
Life habit
ground dwellingPBDB, for Artiodactyla
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Artiodactyla

Time the record covers

At most 14 million years on record.

Every occurrence read is dated to somewhere between 51.1 Mya and 37.71 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 39 of 39 occurrencesEocene51–51 Mya — about 3 occurrences51–50 Mya — about 3 occurrences50–50 Mya — about 3 occurrences50–49 Mya — about 3 occurrences49–49 Mya — about 3 occurrences49–48 Mya — about 3 occurrences48–48 Mya — about 3 occurrences48–47 Mya — about 3 occurrences47–47 Mya — about 3 occurrences47–46 Mya — about 3 occurrences46–46 Mya — about 3 occurrences46–45 Mya — about 0.3 occurrences45–45 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 occurrences42–42 Mya — about 0.3 occurrences42–41 Mya — about 0.3 occurrences41–41 Mya — about 0.3 occurrences41–40 Mya — about 0.3 occurrences40–40 Mya — about 0.2 occurrences40–39 Mya — about 0.0 occurrences39–39 Mya — about 0.0 occurrences39–38 Mya — about 0.0 occurrences38–38 Mya — about 0.0 occurrences51.6 Mya37.2 Mya

39 occurrences of Helohyus 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

39 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

5 formations

Bridger — 41.70°N, 109.00°WBridger — 41.20°N, 110.50°WBridger — 42.70°N, 110.10°WWagon Bed — 43.20°N, 108.20°WCanoe — 29.40°N, 103.13°WDevil's Graveyard — 29.20°N, 103.20°WDuchesne River — 40.10°N, 110.20°W

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The named rock units Helohyus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Helohyus and its relatives

Eocene

Where Helohyus and its relatives were recorded in the Eocene.

Found in the same rock

184 taxa

The Paleobiology Database records 37 sites for Helohyus, 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 39 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 Helohyus

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Helohyus was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itHelohyidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Marsh 1872