Ectocion

Ectocion is an extinct genus of placental mammals of the family Phenacodontidae. The genus was earlier classified as Gidleyina and Prosthecion It reached 6 to 12 kg and was similar in size and morphology to Copecion. Both these herbivorous ungulates likely occupied similar ecological niches.

Ectocion

Claire H. from New York City, USA · CC BY-SA 2.0 · 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
MeniscotheriinaePBDB
Diet
herbivorePBDB, for Phenacodontidae
Life habit
ground dwellingPBDB, for Phenacodontidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 10 million years on record.

The record covers at least 61.66 Mya to 51.1 Mya. No occurrence read is dated outside 66 Mya to 45.9 Mya.

Late Cretaceous — about 0 of 403 occurrencesPaleocene — about 253 of 403 occurrencesPaleoceneEocene — about 150 of 403 occurrencesEocene67–66 Mya — about 0.0 occurrences66–65 Mya — about 0.2 occurrences65–64 Mya — about 0.2 occurrences64–64 Mya — about 0.2 occurrences64–63 Mya — about 0.3 occurrences63–62 Mya — about 0.4 occurrences62–62 Mya — about 0.4 occurrences62–61 Mya — about 0.9 occurrences61–60 Mya — about 18 occurrences60–59 Mya — about 18 occurrences59–59 Mya — about 19 occurrences59–58 Mya — about 19 occurrences58–57 Mya — about 31 occurrences57–57 Mya — about 75 occurrences57–56 Mya — about 71 occurrences56–55 Mya — about 20 occurrences55–55 Mya — about 20 occurrences55–54 Mya — about 20 occurrences54–53 Mya — about 20 occurrences53–52 Mya — about 20 occurrences52–52 Mya — about 20 occurrences52–51 Mya — about 18 occurrences51–50 Mya — about 2 occurrences50–50 Mya — about 2 occurrences50–49 Mya — about 2 occurrences49–48 Mya — about 2 occurrences48–48 Mya — about 0.5 occurrences48–47 Mya — about 0.1 occurrences47–46 Mya — about 0.1 occurrences46–45 Mya — about 0.0 occurrences61.66 Mya51.1 Mya66.5 Mya45.4 Mya

403 occurrences of Ectocion on record, most of them in the Paleocene. 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

403 occurrences

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

20 formations

Willwood — 44.30°N, 109.00°WWillwood — 44.82°N, 109.05°WWillwood — 44.00°N, 108.00°WWillwood — 44.50°N, 108.00°WWillwood — 44.65°N, 109.93°WWillwood — 43.95°N, 107.57°WWillwood — 44.63°N, 108.89°WWillwood — 44.59°N, 108.62°WWillwood — 44.55°N, 108.66°WWillwood — 44.53°N, 108.43°WWillwood — 44.65°N, 108.54°WWillwood — 44.60°N, 108.32°WWillwood — 44.64°N, 108.43°WWillwood — 44.65°N, 108.72°WWillwood — 44.68°N, 108.76°WWillwood — 44.60°N, 108.79°WWillwood — 44.66°N, 108.85°WWillwood — 44.76°N, 108.88°WWillwood — 44.16°N, 107.87°WWillwood — 44.15°N, 107.86°WFort Union — 47.80°N, 106.10°WFort Union — 41.70°N, 109.00°WFort Union — 46.90°N, 101.50°WFort Union — 46.90°N, 103.90°WFort Union — 44.72°N, 108.38°WFort Union — 44.68°N, 108.32°WFort Union — 43.20°N, 107.10°WFort Union — 45.10°N, 106.90°WFort Union — 44.91°N, 108.93°WFort Union — 43.45°N, 109.16°WFort Union — 41.92°N, 108.56°WFort Union — 44.50°N, 108.00°WFort Union — 44.30°N, 109.00°WFort Union — 43.20°N, 108.20°WFort Union — 44.72°N, 108.62°WFort Union — 44.67°N, 108.46°WFort Union — 44.15°N, 107.86°WFort Union — 39.27°N, 108.18°WFort Union — 44.83°N, 108.82°WFort Union — 44.05°N, 109.00°WFort Union — 44.88°N, 109.12°WFort Union — 44.91°N, 109.02°WFort Union — 44.85°N, 108.76°WFort Union — 44.85°N, 108.74°WFort Union — 44.85°N, 108.75°WFort Union — 44.85°N, 108.89°WFort Union — 41.68°N, 107.52°WFort Union — 41.83°N, 108.60°WDeBeque — 39.20°N, 108.20°WDeBeque — 39.27°N, 108.18°WDeBeque — 39.70°N, 107.60°WWasatch — 41.80°N, 110.70°WWasatch — 41.27°N, 110.33°WWasatch — 40.60°N, 108.10°WWasatch — 42.24°N, 110.19°WWasatch — 41.70°N, 109.00°WWasatch — 41.86°N, 110.75°WPaskapoo — 51.10°N, 114.50°WPaskapoo — 51.18°N, 114.43°WPaskapoo — 52.60°N, 114.10°WPaskapoo — 52.20°N, 113.60°WPaskapoo — 51.50°N, 112.30°WPaskapoo — 54.80°N, 115.46°WPaskapoo — 53.23°N, 114.70°WWind River — 44.00°N, 106.60°WWind River — 43.20°N, 108.20°WWind River — 43.20°N, 107.33°W"Wasatch" — 44.00°N, 106.60°WLower Variegated Sequence — 43.90°N, 110.80°WLower Variegated Sequence — 43.20°N, 108.20°W"Fort Union No. 3" (= Melville) — 45.80°N, 109.80°W"Fort Union No. 3" (= Melville) — 46.20°N, 109.90°WHanna — 41.80°N, 107.00°WRavenscrag — 49.70°N, 110.10°WRavenscrag — 49.06°N, 102.75°WSentinel Butte — 47.20°N, 101.90°WSentinel Butte — 47.50°N, 101.20°WMelville — 45.80°N, 109.80°WMelville — 46.02°N, 110.28°WHoback — 42.70°N, 110.10°WSlope — 46.70°N, 101.80°WEvanston — 41.80°N, 110.70°WBullion Creek — 47.03°N, 103.65°WLas Tetas de Cabra — 28.68°N, 114.08°WTuscahoma — 32.36°N, 88.70°WIndian Meadows — 43.20°N, 108.20°W

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The named rock units Ectocion has been recovered from, largest first. Drawn where the rock is now, not where it formed. 120 occurrences have no formation on record, which is common for older literature.

Ectocion and its relatives

Paleocene

Where Ectocion and its relatives were recorded in the Paleocene.

Found in the same rock

783 taxa

The Paleobiology Database records 394 sites for Ectocion, 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

52 references

Each of the 403 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. 40 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 Ectocion

Credit
Claire H. from New York City, USA
Licence
CC BY-SA 2.0
Commercial use
the licence allows it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Ectocion osbornianus · CM:VertPaleo:79144

The description on this site

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 itMeniscotheriinae through timeFormations of the PaleoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1882