Ectoganus
Ectoganus is an extinct genus of taeniodonts from tribe Ectoganini within subfamily Stylinodontinae and family Stylinodontidae, that lived in North America from the Late Paleocene to Early Eocene.

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
- StylinodontidaePBDB
- Diet
- herbivorePBDB, for Stylinodontidae
- Life habit
- ground dwellingPBDB, for Stylinodontidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Stylinodontidae
Time the record covers
At least 1.5 million years on record.
The record covers at least 57.5 Mya to 56 Mya. No occurrence read is dated outside 60.9 Mya to 48.07 Mya.
77 occurrences of Ectoganus on record. 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
77 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
10 formations
- Willwood Formation28
- Fort Union Formation14
- DeBeque Formation14
- San Jose Formation4
- Wasatch Formation3
- Williamsburg Formation · Black Mingo Group2
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The named rock units Ectoganus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.
Found in the same rock
438 taxa- Phenacodus vortmani27 sites
- Ectocion osbornianus19 sites
- Coryphodon18 sites
- Esthonyx bisulcatus17 sites
- Phenacodus15 sites
- Phenacodus intermedius15 sites
- Didymictis protenus11 sites
- Hyopsodus11 sites
- Paramys copei11 sites
- Plesiadapis dubius11 sites
- Thryptacodon antiquus11 sites
- Viverravus acutus11 sites
- Ectocion parvus10 sites
- Vulpavus australis10 sites
- Diacodexis9 sites
- Paramys taurus9 sites
- Phenacolemurinae9 sites
- Sifrhippus index9 sites
- Arenahippus pernix8 sites
- Diacodexis metsiacus8 sites
- Dissacus praenuntius8 sites
- Homogalax protapirinus8 sites
- Paramys excavatus8 sites
- Sifrhippus grangeri8 sites
The Paleobiology Database records 76 sites for Ectoganus, 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
20 references- Synonymies and reidentifications of North American fossil mammals30
- Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary11
- The Tiffanian Land-Mammal Age (middle and late Paleocene) in the northern Bighorn Basin, Wyoming10
- Earliest Eocene mammalian fauna from the Paleocene-Eocene Thermal Maximum at Sand Creek Divide, southern Bighorn Basin, Wyoming8
- Systematics, Functional Morphology and Macroevolution of the Extinct Mammalian Order Taeniodonta3
- Stratigraphy, mammalian paleontology, paleoecology, and age correlation of the Wasatch Formation, Fossil Butte National Monument, Wyoming1
- New Wa-0 mammalian fauna from Castle Gardens in the southeastern Bighorn Basin1
- Land-mammals from the Late Paleocene Aquia Formation: The first early Cenozoic mammals from Maryland1
- Late Paleocene land-mammals from the Williamsburg Formation (Black Mingo Group) of South Carolina1
- 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, Wyoming1
- Systematics and Evolution of Early Eocene Perissodactyla (Mammalia) in the Clarks Fork Basin, Wyoming1
- Smith and Lucas, 19911
Each of the 77 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. 8 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 Ectoganus
- Source
- Wikipedia/Commons
- Credit
- R. Bruce Horsfall
- Licence
- Public Domain
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- UIPaleoRepository
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Ectoganus”
- 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 itStylinodontidae through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1874