Toxotherium hunteri

Toxotherium is an extinct genus of perissodactyl of uncertain affinities that lived in North America during the Late Eocene, in the Chadronian land mammal age. Two species of Toxotherium are recognized, T. hunteri from the Flagstaff Rim and T. woodi from the White River Formation and Cypress Hills Formation. Both species are known only from partial lower jaws.

Toxotherium hunteri

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
ToxotheriumPBDB
Diet
browserPBDB, for Ceratomorpha
Life habit
ground dwellingPBDB, for Ceratomorpha
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At most 5.8 million years on record.

Every occurrence read is dated to somewhere between 39.7 Mya and 33.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 7 of 7 occurrencesEoceneOligocene — about 0 of 7 occurrences40–40 Mya — about 0.1 occurrences40–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–38 Mya — about 0.1 occurrences38–38 Mya — about 0.1 occurrences38–38 Mya — about 0.1 occurrences38–38 Mya — about 0.1 occurrences38–37 Mya — about 0.1 occurrences37–37 Mya — about 0.1 occurrences37–37 Mya — about 0.1 occurrences37–37 Mya — about 0.4 occurrences37–37 Mya — about 0.4 occurrences37–36 Mya — about 0.4 occurrences36–36 Mya — about 0.4 occurrences36–36 Mya — about 0.4 occurrences36–36 Mya — about 0.4 occurrences36–35 Mya — about 0.4 occurrences35–35 Mya — about 0.4 occurrences35–35 Mya — about 0.4 occurrences35–35 Mya — about 0.4 occurrences35–35 Mya — about 0.4 occurrences35–34 Mya — about 0.4 occurrences34–34 Mya — about 0.4 occurrences34–34 Mya — about 0.3 occurrences40.2 Mya33.4 Mya

7 occurrences of Toxotherium hunteri 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

7 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

4 formations

Chambers Tuff — 29.90°N, 104.20°WCypress Hills — 49.57°N, 109.88°WWhite River — 43.20°N, 107.10°WChadron — 42.00°N, 104.20°W

Loading coastlines…

The named rock units Toxotherium hunteri has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Toxotherium hunteri and its relatives

Eocene

Where Toxotherium hunteri and its relatives were recorded in the Eocene.

Found in the same rock

170 taxa

The Paleobiology Database records 7 sites for Toxotherium hunteri, 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

4 references

Each of the 7 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 Toxotherium hunteri

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

No 3D scan of Toxotherium hunteri 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 itToxotherium through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Wood 1961