Rhynchippus

Rhynchippus is an extinct genus of notoungulate mammals from the Late Oligocene of South America. The genus was first described by Florentino Ameghino in 1897 and the type species is R. equinus, with lectotype MACN A 52–31. Fossils of Rhynchippus have been found in the Agua de la Piedra and Sarmiento Formations of Argentina, the Salla and Petaca Formations of Bolivia, the Tremembé Formation of Brazil, and the Moquegua Formation of Peru.

Rhynchippus

Martínez et al. 2016 · 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
ToxodontiaPBDB
Diet
herbivorePBDB, for Notoungulata
Life habit
scansorialPBDB, for Eutheria
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At most 35 million years on record.

Every occurrence read is dated to somewhere between 56 Mya and 21 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Paleocene — about 0 of 15 occurrencesEocene — about 1 of 15 occurrencesEoceneOligocene — about 11 of 15 occurrencesOligoceneMiocene — about 3 of 15 occurrences57–55 Mya — about 0.0 occurrences55–54 Mya — about 0.0 occurrences54–53 Mya — about 0.0 occurrences53–52 Mya — about 0.0 occurrences52–51 Mya — about 0.0 occurrences51–49 Mya — about 0.0 occurrences49–48 Mya — about 0.0 occurrences48–47 Mya — about 0.0 occurrences47–46 Mya — about 0.0 occurrences46–45 Mya — about 0.0 occurrences45–43 Mya — about 0.0 occurrences43–42 Mya — about 0.0 occurrences42–41 Mya — about 0.0 occurrences41–40 Mya — about 0.0 occurrences40–39 Mya — about 0.0 occurrences39–37 Mya — about 0.0 occurrences37–36 Mya — about 0.0 occurrences36–35 Mya — about 0.0 occurrences35–34 Mya — about 0.1 occurrences34–32 Mya — about 0.2 occurrences32–31 Mya — about 0.2 occurrences31–30 Mya — about 0.2 occurrences30–29 Mya — about 0.5 occurrences29–28 Mya — about 2 occurrences28–26 Mya — about 2 occurrences26–25 Mya — about 2 occurrences25–24 Mya — about 2 occurrences24–23 Mya — about 2 occurrences23–22 Mya — about 2 occurrences22–20 Mya — about 0.8 occurrences56.7 Mya20.3 Mya

15 occurrences of Rhynchippus on record, most of them in the Oligocene. 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

15 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

Sarmiento — 44.67°S, 68.42°WSarmiento — 45.23°S, 67.49°WSarmiento — 44.02°S, 68.02°WSarmiento — 44.50°S, 66.00°WUpper Moquegua — 17.21°S, 71.01°WSalla — 17.18°S, 67.63°WPetaca — 17.63°S, 63.77°W

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The named rock units Rhynchippus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Rhynchippus and its relatives

Oligocene

Where Rhynchippus and its relatives were recorded in the Oligocene.

Found in the same rock

163 taxa

The Paleobiology Database records 8 sites for Rhynchippus, 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 15 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 Rhynchippus

Credit
Martínez et al. 2016
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Rhynchippus 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 itToxodontia through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1897