Protylopus
Protylopus is an extinct genus of camel that lived during middle to late Eocene some 50-40 million years ago in North America.

R. Bruce Horsfall · Public Domain · 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
- OromerycidaePBDB
- Diet
- browserPBDB, for Oromerycidae
- Life habit
- ground dwellingPBDB, for Oromerycidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At most 8.9 million years on record.
Every occurrence read is dated to somewhere between 45.9 Mya and 37 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
35 occurrences of Protylopus 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
35 occurrences- Eocene100%
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
8 formations
- Santiago Formation12
- Sespe Formation12
- Uinta Formation5
- Mission Valley Formation2
- Devil's Graveyard Formation1
- Washakie Formation1
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The named rock units Protylopus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Protylopus and its relatives
EoceneWhere Protylopus and its relatives were recorded in the Eocene.
Found in the same rock
285 taxa- Protoreodon pumilus12 sites
- Proterixoides davisi11 sites
- Sespedectes singularis11 sites
- Amynodon advenus10 sites
- Simimys simplex10 sites
- Pareumys9 sites
- Griphomys alecer8 sites
- Leptoreodon stocki8 sites
- Dyseolemur pacificus7 sites
- Protoreodon walshi7 sites
- Epihippus gracilis6 sites
- Peradectes californicus6 sites
- Simimeryx hudsoni6 sites
- Amynodon5 sites
- Amynodontopsis bodei5 sites
- Boidae5 sites
- Bunomeryx montanus5 sites
- Isectolophus annectens5 sites
- Leptoreodon5 sites
- Miocyon scotti5 sites
- Ourayia5 sites
- Testudines5 sites
- Testudinidae5 sites
- Trionychidae5 sites
The Paleobiology Database records 28 sites for Protylopus, 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- Summary of known occurrences of terrestrial vertebrates from Eocene strata of southern California11
- Middle Eocene mammal faunas of San Diego County, California6
- Biostratigraphy of Uintan and Duchesnean land mammal assemblages from the Middle Member of the Sespe Formation, Simi Valley, California6
- Synonymies and reidentifications of North American fossil mammals2
- Magnetic stratigraphy and biostratigraphy of the middle Eocene Uinta Formation, Uinta Basin, Utah2
- Preliminary Report on a Paleontologic Investigation of the Lower and Middle Members, Sespe Formation, Simi Valley Landfill, Ventura County, California2
- The Eocene vertebrates of the Uinta Basin, Utah2
- Biostratigraphy and magnetostratigraphy of the Bridgerian-Uintan Washakie Formation, Washakie Basin, Wyoming1
- Stratigraphic Occurrence and Correlation of Early Tertiary Vertebrate Faunas, Trans-Pecos Texas: Agua Fria-Green Valley Areas1
- Eocene Artiodactyla of Southern California1
- A review of the Upper Eocene Artiodactyla of North America1
Each of the 35 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 content2
Picture of Protylopus
- Source
- Wikipedia/Commons
- Credit
- R. Bruce Horsfall
- Licence
- Public Domain
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Protylopus stocki · SDNHM:Paleo:60369
The description on this site
- Source
- Wikipedia, “Protylopus”
- 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 itOromerycidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Wortman 1898