Haplomylus

via iDigBio · CC0 · via iDigBio. 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
- ApheliscidaePBDB
- Diet
- insectivorePBDB, for Macroscelidea
- Life habit
- ground dwellingPBDB, for Macroscelidea
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 9.4 million years on record.
The record covers at least 57.5 Mya to 48.07 Mya. No occurrence read is dated outside 60.9 Mya to 41.03 Mya.
298 occurrences of Haplomylus 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
298 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
9 formations
- Willwood Formation173
- Wasatch Formation25
- "Wasatch" Formation18
- DeBeque Formation9
- Fort Union Formation8
- Wind River Formation3
Loading coastlines…
The named rock units Haplomylus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 58 occurrences have no formation on record, which is common for older literature.
Haplomylus and its relatives
EoceneWhere Haplomylus and its relatives were recorded in the Eocene.
Found in the same rock
398 taxa- Ectocion osbornianus102 sites
- Cantius mckennai71 sites
- Phenacodus intermedius71 sites
- Hyopsodus65 sites
- Coryphodon63 sites
- Sifrhippus grangeri61 sites
- Homogalax protapirinus60 sites
- Hyopsodus loomisi60 sites
- Arenahippus aemulor55 sites
- Diacodexis metsiacus55 sites
- Viverravus acutus52 sites
- Thryptacodon antiquus51 sites
- Phenacodus vortmani50 sites
- Esthonyx spatularius47 sites
- Didymictis protenus42 sites
- Rodentia38 sites
- Allognathosuchus37 sites
- Coryphodon eocaenus34 sites
- Diacodexis34 sites
- Esthonyx bisulcatus34 sites
- Apheliscus33 sites
- Phenacodus32 sites
- Cardiolophus radinskyi31 sites
- Paramys copei31 sites
The Paleobiology Database records 287 sites for Haplomylus, and this reads 240 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
28 references- Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary106
- The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary41
- New species of Apheliscus, Haplomylus, and Hyopsodus (Mammalia, Condylarthra) from the late Paleocene of southern Montana and early Eocene of northwestern Wyoming36
- Species diversity, tooth size, and shape of Haplomylus (Condylarthra, Hyopsodontidae) from the Powder River Basin, northeastern Wyoming28
- Faunal Zonation of the Willwood Formation in the Central Bighorn Basin, Wyoming19
- Fossil mammals of the early Wasatchian Powder River local fauna, Eocene of northeast16
- Fossil Mammalia from the early Wasatchian Four Mile fauna, Eocene of northwest Colorado11
- Early Eocene Mammalian Fauna of the Piceance Creek Basin. Northwestern Colorado9
- Early Eocene mammalian faunas and their environment in the vicinity of the Rock Springs Uplift, Wyoming5
- Stratigraphy, mammalian paleontology, paleoecology, and age correlation of the Wasatch Formation, Fossil Butte National Monument, Wyoming3
- Earliest Eocene mammalian fauna from the Paleocene-Eocene Thermal Maximum at Sand Creek Divide, southern Bighorn Basin, Wyoming3
- Geology and mammalian paleontology of the Wind River Formation, Laramie Basin, southeastern Wyoming3
Each of the 298 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. 16 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 content1

Picture of Haplomylus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Haplomylus 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itApheliscidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Matthew 1915