Vassacyon promicrodon

W. D. Matthew and W. Granger · Public Domain · 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
- VassacyonPBDB
- Diet
- carnivore, omnivorePBDB, for Vassacyon
- Life habit
- scansorialPBDB, for Eutheria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 4.9 million years on record.
Every occurrence read is dated to somewhere between 56 Mya and 51.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
26 occurrences of Vassacyon promicrodon 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
26 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
2 formations
Loading coastlines…
The named rock units Vassacyon promicrodon has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Vassacyon promicrodon and its relatives
EoceneWhere Vassacyon promicrodon and its relatives were recorded in the Eocene.
Found in the same rock
176 taxa- Esthonyx bisulcatus19 sites
- Cantius abditus17 sites
- Phenacodus vortmani17 sites
- Coryphodon16 sites
- Arenahippus pernix15 sites
- Diacodexis metsiacus15 sites
- Vulpavus australis14 sites
- Homogalax protapirinus13 sites
- Bunophorus etsagicus11 sites
- Didymictis protenus11 sites
- Hyopsodus11 sites
- Palaeictops bicuspis10 sites
- Viverravus acutus10 sites
- Absarokius metoecus9 sites
- Paramys copei9 sites
- Anacodon ursidens8 sites
- Didymictis8 sites
- Phenacolemurinae8 sites
- Allognathosuchus7 sites
- Arenahippus aemulor7 sites
- Diacodexis7 sites
- Hyopsodus simplex7 sites
- Lepisosteus7 sites
- Palaeanodon ignavus7 sites
The Paleobiology Database records 26 sites for Vassacyon promicrodon, 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- Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary15
- Faunal Zonation of the Willwood Formation in the Central Bighorn Basin, Wyoming6
- Distribution and stratigraphic correlation of upper Paleocene and lower Eocene fossil mammal and plant localities of the Fort Union, Willwood, and Tatman formations, southern Bighorn Basin, Wyoming3
- Paleocene-Eocene faunal zones and a preliminary analysis of Laramide structural deformation in the Clarks Fork Basin, Wyoming1
- A Further Study Of The Lower Eocene Mammalian Faunas Of Southwestern Wyoming1
Each of the 26 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 Vassacyon promicrodon
- Source
- Wikidata/Commons
- Credit
- W. D. Matthew and W. Granger
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Vassacyon promicrodon was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itVassacyon through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Wortman and Matthew 1899)