Microsyopidae

Uncredited · CC0 · via Wikidata/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
- PrimatesPBDB
- Diet
- omnivorePBDB, for Primates
- Life habit
- arborealPBDB, for Primates
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 23 million years on record.
The record covers at least 60.9 Mya to 37 Mya. No occurrence read is dated outside 63.4 Mya to 33.9 Mya.
474 occurrences of Microsyopidae 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
474 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
40 formations
- Willwood Formation159
- Wasatch Formation50
- Bridger Formation44
- Wind River Formation36
- Friars Formation · La Jolla Group36
- DeBeque Formation19
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The named rock units Microsyopidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 further formations hold fewer occurrences each and are not listed. 23 occurrences have no formation on record, which is common for older literature.
Microsyopidae and its relatives
EoceneWhere Microsyopidae and its relatives were recorded in the Eocene.
Found in the same rock
952 taxa- Hyopsodus82 sites
- Coryphodon72 sites
- Sifrhippus grangeri59 sites
- Paramys copei54 sites
- Paramys excavatus51 sites
- Phenacodus vortmani51 sites
- Phenacolemurinae49 sites
- Arctodontomys wilsoni47 sites
- Viverravus acutus47 sites
- Diacodexis45 sites
- Phenacodus43 sites
- Ectocion osbornianus40 sites
- Haplomylus speirianus40 sites
- Didymictis38 sites
- Prototomus34 sites
- Apheliscus32 sites
- Microsyops elegans32 sites
- Prodiacodon tauricinerei31 sites
- Thryptacodon antiquus31 sites
- Lambdotherium popoagicum30 sites
- Microsyops scottianus29 sites
- Viverravus29 sites
- Esthonyx bisulcatus28 sites
- Knightomys depressus28 sites
The Paleobiology Database records 405 sites for Microsyopidae, 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
90 references- Synonymies and reidentifications of North American fossil mammals86
- Systematics of Early Eocene Microsyopinae (Mammalia, Primates) in the Clark's Fork Basin, Wyoming50
- Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary49
- Mammalian Fauna From the Lower Bridger Formation (Bridger A, Early Middle Eocene) of the Southern Green River Basin, Wyoming25
- Eocene mammal faunas of San Diego County25
- Evolutionary History of Microsyopoidea (Mammalia, ?Primates) and the Relationship Between Plesiadapiformes and Primates25
- Revision of the Wind River faunas, early Eocene of central Wyoming. Part 5. Geology and biostratigraphy of the upper part of the Wind River Formation, northeastern Wind River Basin18
- Summary of known occurrences of terrestrial vertebrates from Eocene strata of southern California17
- Early Eocene Mammalian Fauna of the Piceance Creek Basin. Northwestern Colorado11
- Geology, Paleontology, and Correlation of Eocene Volcaniclastic Rocks, Southeast Absaroka Range, Hot Springs County, Wyoming9
- Geology and mammalian paleontology of the New Fork-Big Sandy area, Sublette County, Wyoming9
- The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary8
Each of the 474 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. 78 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 Microsyopidae
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPrimates through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Osborn and Wortman 1892