Sifrhippus index

No picture of Sifrhippus index was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Sifrhippus index, or no answer at all. This entry cannot say which.

On record

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

Time the record covers

At most 8 million years on record.

Every occurrence read is dated to somewhere between 56 Mya and 48.07 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Paleocene — about 0 of 42 occurrencesEocene — about 42 of 42 occurrencesEocene56–56 Mya — about 0.7 occurrences56–56 Mya — about 2 occurrences56–55 Mya — about 2 occurrences55–55 Mya — about 2 occurrences55–55 Mya — about 2 occurrences55–54 Mya — about 2 occurrences54–54 Mya — about 2 occurrences54–54 Mya — about 2 occurrences54–54 Mya — about 2 occurrences54–53 Mya — about 2 occurrences53–53 Mya — about 2 occurrences53–53 Mya — about 2 occurrences53–52 Mya — about 2 occurrences52–52 Mya — about 2 occurrences52–52 Mya — about 2 occurrences52–51 Mya — about 2 occurrences51–51 Mya — about 2 occurrences51–51 Mya — about 0.9 occurrences51–51 Mya — about 0.7 occurrences51–50 Mya — about 0.7 occurrences50–50 Mya — about 0.7 occurrences50–50 Mya — about 0.7 occurrences50–49 Mya — about 0.7 occurrences49–49 Mya — about 0.7 occurrences49–49 Mya — about 0.7 occurrences49–48 Mya — about 0.7 occurrences48–48 Mya — about 0.7 occurrences48–48 Mya — about 0.2 occurrences56.5 Mya47.6 Mya

42 occurrences of Sifrhippus index 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

42 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

7 formations

Willwood — 44.50°N, 108.00°WWillwood — 44.00°N, 108.00°WWillwood — 44.64°N, 108.43°WWillwood — 44.30°N, 109.00°WWillwood — 44.16°N, 107.87°WWillwood — 44.15°N, 107.87°WSan Jose — 36.50°N, 107.00°WWasatch — 41.20°N, 110.50°WWasatch — 42.70°N, 110.10°WWind River — 43.20°N, 108.20°WHannold Hill — 29.20°N, 103.20°Wtop of Lower Variegated Sequence — 43.20°N, 108.20°WTienen — 50.33°N, 4.28°E

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The named rock units Sifrhippus index 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.

Sifrhippus index and its relatives

Eocene

Where Sifrhippus index and its relatives were recorded in the Eocene.

Found in the same rock

239 taxa

The Paleobiology Database records 42 sites for Sifrhippus index, 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

12 references

Each of the 42 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 content0

No picture of Sifrhippus index was found. Wikidata and iDigBio were searched and had none.

Wikipedia and 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 Sifrhippus index, or no answer at all. This entry cannot say which.

No 3D scan of Sifrhippus index 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 itSifrhippus through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Cope 1873)