Oxydactylus
Oxydactylus is an extinct genus of camelid endemic to North America. It lived from the Late Oligocene to the Middle Miocene, existing for approximately 14 million years. The name is from the Ancient Greek οξύς and δάκτυλος.

Jonathan Chen · 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
- CamelidaePBDB
- Diet
- browser, browserPBDB, for Camelidae
- Life habit
- ground dwellingPBDB, for Camelidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At least 7 million years on record.
The record covers at least 23.04 Mya to 15.98 Mya. No occurrence read is dated outside 29.5 Mya to 5.333 Mya.
25 occurrences of Oxydactylus 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
25 occurrencesThese 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
13 formations
- Oakville Formation3
- Renova Formation2
- Harrison Formation2
- Runningwater Formation · Hemingford Group2
- Rosarito Beach Formation2
- Rosebud Formation1
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The named rock units Oxydactylus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.
Oxydactylus and its relatives
MioceneWhere Oxydactylus and its relatives were recorded in the Miocene.
Found in the same rock
317 taxa- Diceratherium4 sites
- Merychyus4 sites
- Rhinocerotidae4 sites
- Blastomerycinae3 sites
- Camelidae3 sites
- Cynarctoides acridens3 sites
- Michenia3 sites
- Alligator2 sites
- Archaeolagus2 sites
- Arretotherium acridens2 sites
- Aves2 sites
- Carnivora2 sites
- Castoridae2 sites
- Daphoenodon notionastes2 sites
- Dinohyus2 sites
- Equidae2 sites
- Hesperhys2 sites
- Leidymys2 sites
- Menoceras2 sites
- Merychyus arenarum2 sites
- Merychyus minimus2 sites
- Merycoidodontidae2 sites
- Moropus2 sites
- Mustelidae2 sites
The Paleobiology Database records 23 sites for Oxydactylus, 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
22 references- Description of some fossil vertebrates from the Upper Miocene of Texas3
- Faunal succession and biochronology of the Arikareean through Hemphillian interval (late Oligocene through earliest Pliocene epochs) in North America2
- Biostratigraphy and biochronology of early Arikareean through late Hemingfordian small mammal faunas from the Nebraska Panhandle and adjacent areas1
- New oreodont (Mammalia, Artiodactyla) from the late Oligocene (early Arikareean) of Florida1
- Synonymies and reidentifications of North American fossil mammals1
- The Arikareean Land Mammal Age in Texas and Florida: Southern extension of Great Plains faunas and Gulf Coastal Plain1
- Nichols, 19981
- Ripley, 19951
- Miocene mammals of the Split Rock area, Granite Mountains basin, central Wyoming1
- Arikareean, Hemingfordian, and Barstovian Mammals From the Miocene Colter Formation, Jackson Hole, Teton County, Wyoming1
- A review of the early and middle Tertiary mammal faunas of Mexico1
- Mammalian biochronology of the late Cenozoic basins of New Mexico1
Each of the 25 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. 10 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 content2
Picture of Oxydactylus
- Source
- Wikipedia/Commons
- Credit
- Jonathan Chen
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
Structured light scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Oxydactylus sp · AMNH:FAM:36480
The description on this site
- Source
- Wikipedia, “Oxydactylus”
- 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 itCamelidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Peterson 1904