Cteniogenys

Cteniogenys is a genus of choristodere, a morphologically diverse group of aquatic reptiles. It is part of the monotypic family Cteniogenidae. The type and only named species, C. antiquus, was named in 1928 by Charles W. Gilmore. The holotype, VP.001088, was collected in the Morrison Formation, Wyoming in 1881 by William H. Reed. More specimens have been discovered since then, including specimens from the Late Jurassic of Portugal and Middle Jurassic of Britain, which have not been assigned to species.

Cteniogenys

Yale Peabody Museum · CC BY-SA 4.0 · 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
CteniogenyidaePBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 81 million years on record.

The record covers at least 165.3 Mya to 83.6 Mya. No occurrence read is dated outside 168.2 Mya to 72.2 Mya.

Middle Jurassic — about 8 of 25 occurrencesMiddle JurassicLate Jurassic — about 14 of 25 occurrencesLate JurassicEarly Cretaceous — about 1 of 25 occurrencesEarly CretaceousLate Cretaceous — about 2 of 25 occurrencesLate Cretaceous170–167 Mya — about 4 occurrences167–163 Mya — about 4 occurrences157–153 Mya — about 1 occurrence153–150 Mya — about 3 occurrences150–147 Mya — about 5 occurrences147–143 Mya — about 5 occurrences143–140 Mya — about 0.9 occurrences140–137 Mya — about 0.5 occurrences87–84 Mya — about 0.0 occurrences84–80 Mya — about 0.6 occurrences80–77 Mya — about 0.6 occurrences77–74 Mya — about 0.6 occurrences74–70 Mya — about 0.2 occurrences165.3 Mya83.6 Mya170 Mya70 Mya

25 occurrences of Cteniogenys on record, most of them in the Late Jurassic. 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

25 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

8 formations

Morrison — 41.89°N, 106.00°WMorrison — 41.99°N, 106.08°WMorrison — 44.46°N, 104.73°WMorrison — 44.18°N, 103.34°WMorrison — 40.47°N, 109.18°WMorrison — 41.88°N, 106.11°WMorrison — 44.06°N, 106.72°WForest Marble — 51.87°N, 1.27°WForest Marble — 50.71°N, 2.78°WForest Marble — 50.68°N, 2.66°WForest Marble — 51.73°N, 1.98°WForest Marble — 51.51°N, 2.16°WChipping Norton Limestone — 51.99°N, 1.80°WMoskovoretskaya — 55.20°N, 38.78°EAlcobaça — 39.70°N, 8.80°WOldman — 50.70°N, 111.50°WDinosaur Park — 49.96°N, 110.27°WKilmaluag — 57.17°N, 6.11°W

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The named rock units Cteniogenys has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Cteniogenys and its relatives

Late Jurassic

Where Cteniogenys and its relatives were recorded in the Late Jurassic.

Found in the same rock

452 taxa

The Paleobiology Database records 25 sites for Cteniogenys, 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

17 references

Each of the 25 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. 5 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 Cteniogenys

Credit
Yale Peabody Museum
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

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 itCteniogenyidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gilmore 1928