Rhinocheilus
Rhinocheilus is a genus of snakes, commonly called the long-nosed snakes, in the family Colubridae. The genus is native to the western United States and Mexico.

Dawson at en.wikipedia · CC BY-SA 2.5 · 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
- ColubridaePBDB
- Diet
- carnivorePBDB
- Life habit
- ground dwellingPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Amniota
Time the record covers
At least 1.6 million years on record.
The record covers at least 1.8 Mya to 129 ka. No occurrence read is dated outside 4.7 Mya to 0 Mya.
5 occurrences of Rhinocheilus on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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
5 occurrences- Pliocene26%
- Pleistocene72%
- Holocene2%
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
3 formations
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The named rock units Rhinocheilus 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.
Rhinocheilus and its relatives
PleistoceneWhere Rhinocheilus and its relatives were recorded in the Pleistocene.
Found in the same rock
183 taxa- Equus4 sites
- Lampropeltis getulus4 sites
- Geomys3 sites
- Hemiauchenia3 sites
- Phrynosoma3 sites
- Agkistrodon2 sites
- Ambystoma tigrinum2 sites
- Bufo cognatus2 sites
- Bufo woodhousei2 sites
- Camelops2 sites
- Canis latrans2 sites
- Capromeryx2 sites
- Coluber constrictor2 sites
- Crotalus atrox2 sites
- Crotaphytus collaris2 sites
- Dasypus bellus2 sites
- Heterodon nasicus2 sites
- Holbrookia2 sites
- Lampropeltis2 sites
- Lasiurus2 sites
- Lepus2 sites
- Lepus californicus2 sites
- Masticophis2 sites
- Neotoma albigula2 sites
The Paleobiology Database records 5 sites for Rhinocheilus, 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
5 references- Pliocene and Pleistocene vertebrates of New Mexico1
- The Late Wisconsinan vertebrate fauna from Deadman Cave, southern Arizona1
- Herpetofaunas of the Big Springs and Hornet's Nest quarries (northeastern Nebraska, Pleistocene: Late Blancan)1
- Herpetofauna of the Pleistocene Slaton Local Fauna of Texas1
- A succession of Pliocene and Pleistocene snake faunas from the High Plains of the United States1
Each of the 5 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 Rhinocheilus
- Source
- Wikipedia/Commons
- Credit
- Dawson at en.wikipedia
- Licence
- CC BY-SA 2.5
- Commercial use
- the licence allows it
No 3D scan of Rhinocheilus 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 itColubridae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Baird and Girard 1853