Astrohippus

Astrohippus is an extinct member of the Equidae tribe Equini, the same tribe that contains the only living equid genus, Equus. Fossil remains have been found in the central United States, Florida, and the Mexican states of Chihuahua, Jalisco, and Guanajuato. The fossils date in time from the oldest dating from the Barstovian in the Miocene to the youngest dating in the Hemphillian faunal stage of the early Pliocene.

No picture of Astrohippus was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Astrohippus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PliohippinaPBDB
Diet
browserPBDB
Life habit
ground dwellingPBDB, for Equinae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At most 19 million years on record.

Every occurrence read is dated to somewhere between 23.04 Mya and 4.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Oligocene — about 0 of 36 occurrencesMiocene — about 31 of 36 occurrencesMiocenePliocene — about 5 of 36 occurrences24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.0 occurrences22–22 Mya — about 0.0 occurrences22–21 Mya — about 0.0 occurrences21–20 Mya — about 0.0 occurrences20–20 Mya — about 0.0 occurrences20–19 Mya — about 0.0 occurrences19–18 Mya — about 0.0 occurrences18–18 Mya — about 0.0 occurrences18–17 Mya — about 0.0 occurrences17–16 Mya — about 0.0 occurrences16–16 Mya — about 0.1 occurrences16–15 Mya — about 0.1 occurrences15–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–12 Mya — about 0.2 occurrences12–11 Mya — about 0.2 occurrences11–11 Mya — about 0.2 occurrences11–10 Mya — about 0.2 occurrences10–9.4 Mya — about 0.5 occurrences9.4–8.7 Mya — about 5 occurrences8.7–8.1 Mya — about 5 occurrences8.1–7.4 Mya — about 5 occurrences7.4–6.8 Mya — about 5 occurrences6.8–6.1 Mya — about 5 occurrences6.1–5.5 Mya — about 5 occurrences5.5–4.8 Mya — about 5 occurrences4.8–4.2 Mya — about 1 occurrence23.5 Mya4.2 Mya

36 occurrences of Astrohippus on record, most of them in the Miocene. 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

36 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

Rancho Viejo Beds — 21.08°N, 100.67°WRancho Viejo Beds — 21.20°N, 100.70°WRancho Viejo Beds — 21.10°N, 100.80°WRancho Viejo Beds — 21.00°N, 100.70°WOgallala — 36.70°N, 101.40°WOgallala — 35.70°N, 102.30°WOgallala — 38.90°N, 101.70°WPeace River — 27.00°N, 82.20°WPeace River — 27.90°N, 81.80°WAsh Hollow — 41.70°N, 103.10°WGoodnight Beds — 35.00°N, 101.30°WBridwell — 33.70°N, 101.90°WAlachua — 29.10°N, 82.30°WHumboldt — 40.70°N, 116.10°WChamita — 36.50°N, 107.00°WJuchipila — 21.61°N, 102.99°W

Loading coastlines…

The named rock units Astrohippus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 20 occurrences have no formation on record, which is common for older literature.

Astrohippus and its relatives

Miocene

Where Astrohippus and its relatives were recorded in the Miocene.

Found in the same rock

238 taxa

The Paleobiology Database records 36 sites for Astrohippus, 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

19 references

Each of the 36 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. 7 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 content0

No picture of Astrohippus was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Astrohippus, or no answer at all. This entry cannot say which.

No 3D scan of Astrohippus 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 itPliohippina through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Stirton 1940)