Treptoceras

Treptoceras is a fossil cephalopod genus included in the orthocerid family Proteoceratidae.

Treptoceras

Hectonichus · 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
ProteoceratidaePBDB
Diet
carnivorePBDB, for Orthocerida
Life habit
nektonicPBDB, for Orthocerida
Motility
actively mobilePBDB, for Orthocerida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Orthocerida

Time the record covers

At least 292 million years on record.

The record covers at least 458.2 Mya to 165.3 Mya. No occurrence read is dated outside 468 Mya to 161.5 Mya.

Ordovician — about 60 of 62 occurrencesOrdovicianSilurian — about 0 of 62 occurrencesDevonian — about 0 of 62 occurrencesCarboniferous — about 0 of 62 occurrencesPermian — about 0 of 62 occurrencesEarly Triassic — about 0 of 62 occurrencesMiddle Triassic — about 0 of 62 occurrencesLate Triassic — about 0 of 62 occurrencesEarly Jurassic — about 0 of 62 occurrencesMiddle Jurassic — about 2 of 62 occurrencesLate Jurassic — about 0 of 62 occurrences474–464 Mya — about 0.9 occurrences464–453 Mya — about 2 occurrences453–442 Mya — about 57 occurrences166–155 Mya — about 2 occurrences458.2 Mya165.3 Mya474 Mya155 Mya

62 occurrences of Treptoceras on record, most of them in the Ordovician. 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

62 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

17 formations

Waynesville — 39.45°N, 83.83°WWaynesville — 39.44°N, 84.20°WWaynesville — 39.42°N, 85.01°WWaynesville — 39.00°N, 84.00°WWaynesville — 39.53°N, 84.08°WWaynesville — 39.38°N, 84.08°WWaynesville — 39.41°N, 83.98°WKope — 38.87°N, 84.46°WKope — 39.00°N, 84.00°WKope — 38.80°N, 84.16°WKope — 39.03°N, 84.54°WKope — 39.06°N, 84.44°WBull Fork — 39.35°N, 85.21°WBull Fork — 39.44°N, 85.01°WBull Fork — 39.48°N, 84.06°WBull Fork — 39.44°N, 83.94°WBull Fork — 39.50°N, 83.73°WBull Fork — 39.51°N, 84.76°WFairview — 39.00°N, 84.00°WFairview — 39.03°N, 84.51°WFairview — 38.87°N, 83.92°WFairview — 39.19°N, 84.64°WWhitewater — 39.00°N, 84.00°WWhitewater — 38.00°N, 85.50°WMount Auburn — 39.00°N, 84.00°WMount Auburn — 39.33°N, 84.07°WSunset — 38.49°N, 83.76°WSunset — 39.13°N, 84.62°WJigunsan — 37.18°N, 128.70°EJigunsan — 37.10°N, 129.01°EBellevue — 39.00°N, 84.00°WCorryville — 39.00°N, 84.00°WLiberty — 39.00°N, 84.00°WArnheim — 39.00°N, 84.00°WTate — 37.58°N, 84.61°WOregonia — 39.13°N, 84.60°WDrakes — 37.72°N, 85.52°WClays Ferry — 38.39°N, 84.54°WGrant Lake — 39.18°N, 84.11°W

Loading coastlines…

The named rock units Treptoceras 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.

Treptoceras and its relatives

Ordovician

Where Treptoceras and its relatives were recorded in the Ordovician.

Found in the same rock

457 taxa

The Paleobiology Database records 52 sites for Treptoceras, 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

12 references

Each of the 62 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 content2

Picture of Treptoceras

Credit
Hectonichus
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

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

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 itProteoceratidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Flower 1942