Meekoceras

Meekoceras is an extinct genus of ceratitid ammonites with a discoidal shell that lived during the Early Triassic Epoch.

Meekoceras

Kent G. Budge · 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
PrionitidaePBDB
Diet
carnivorePBDB, for Ceratitida
Life habit
nektonicPBDB, for Ceratitida
Motility
actively mobilePBDB, for Ceratitida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 9.6 million years on record.

The record covers at least 251.1 Mya to 241.464 Mya. No occurrence read is dated outside 251.902 Mya to 237 Mya.

Permian — about 0 of 179 occurrencesEarly Triassic — about 175 of 179 occurrencesEarly TriassicMiddle Triassic — about 4 of 179 occurrencesMiddle TriassicLate Triassic — about 0 of 179 occurrences252–252 Mya — about 0.3 occurrences252–251 Mya — about 5 occurrences251–251 Mya — about 4 occurrences251–250 Mya — about 36 occurrences250–250 Mya — about 37 occurrences250–249 Mya — about 37 occurrences249–249 Mya — about 37 occurrences249–248 Mya — about 10 occurrences248–248 Mya — about 5 occurrences248–247 Mya — about 5 occurrences247–247 Mya — about 1 occurrence247–246 Mya — about 0.2 occurrences246–246 Mya — about 0.2 occurrences246–245 Mya — about 0.2 occurrences245–244 Mya — about 0.2 occurrences244–244 Mya — about 0.2 occurrences244–243 Mya — about 0.2 occurrences243–243 Mya — about 0.2 occurrences243–242 Mya — about 0.2 occurrences242–242 Mya — about 0.2 occurrences242–241 Mya — about 0.2 occurrences241–241 Mya — about 0.2 occurrences241–240 Mya — about 0.2 occurrences240–240 Mya — about 0.2 occurrences240–239 Mya — about 0.2 occurrences239–239 Mya — about 0.2 occurrences239–238 Mya — about 0.2 occurrences238–238 Mya — about 0.2 occurrences238–237 Mya — about 0.2 occurrences237–237 Mya — about 0.0 occurrences251.1 Mya241.464 Mya252.4 Mya236.5 Mya

179 occurrences of Meekoceras on record, most of them in the Early Triassic. 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

179 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

30 formations

Thaynes — 42.69°N, 111.47°WThaynes — 42.23°N, 111.44°WThaynes — 42.12°N, 111.25°WThaynes — 41.53°N, 114.13°WThaynes — 41.54°N, 114.17°WThaynes — 41.55°N, 114.14°WThaynes — 42.92°N, 111.45°WThaynes — 42.70°N, 111.43°WThaynes — 39.41°N, 113.69°WThaynes — 38.67°N, 112.52°WThaynes — 38.23°N, 112.89°WUpper Ceratite Limestone — 32.96°N, 71.20°EUpper Ceratite Limestone — 32.78°N, 71.65°EUpper Ceratite Limestone — 32.65°N, 71.79°EUpper Ceratite Limestone — 32.55°N, 71.79°EUpper Ceratite Limestone — 32.52°N, 71.93°EUpper Ceratite Limestone — 32.52°N, 72.10°ETobizin — 43.05°N, 131.92°ETobizin — 42.92°N, 131.90°ETobizin — 43.17°N, 132.00°EBlind Fiord — 80.64°N, 87.62°WBlind Fiord — 81.05°N, 90.10°WBlind Fiord — 80.83°N, 90.67°WBlind Fiord — 80.65°N, 87.60°WBlind Fiord — 80.64°N, 87.45°WLazurnaya — 43.00°N, 131.92°ELazurnaya — 43.17°N, 132.00°ELazurnaya — 42.92°N, 132.30°ELazurnaya — 42.93°N, 132.42°EVasmikukh — 38.40°N, 70.21°EZhitkov — 43.30°N, 132.45°EZhitkov — 42.93°N, 132.42°EZhitkov — 42.92°N, 132.33°EQinglong — 30.45°N, 117.54°EQinglong — 31.64°N, 117.45°EHelongshan — 31.64°N, 117.85°ETaho — 33.38°N, 132.68°EHongshuichuanqun — 35.41°N, 98.55°ESinbad — 37.67°N, 113.03°WSinbad — 38.27°N, 111.39°WUnion Wash — 36.70°N, 118.03°WAlikagarskaya — 38.40°N, 70.21°EYatyrgvarta — 43.85°N, 40.62°EOsawa — 38.79°N, 141.52°EKhunamuh — 34.09°N, 74.98°ECeratites Sandstone — 32.50°N, 72.00°ECeratites Sandstone — 32.51°N, 71.93°EWerfen — 46.01°N, 10.15°EWerfen — 46.41°N, 11.24°EKangshare — 28.57°N, 85.96°ELazurnaya Bay — 42.92°N, 132.33°EHan-Bulog — 42.02°N, 19.81°EToad — 56.49°N, 123.17°WElikah — 38.94°N, 45.51°E

Loading coastlines…

The named rock units Meekoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 further formations hold fewer occurrences each and are not listed. 49 occurrences have no formation on record, which is common for older literature.

Meekoceras and its relatives

Early Triassic

Where Meekoceras and its relatives were recorded in the Early Triassic.

Found in the same rock

425 taxa

The Paleobiology Database records 137 sites for Meekoceras, 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

43 references

Each of the 179 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. 31 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 Meekoceras

Credit
Kent G. Budge
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial-ShareAlike
Commercial use
the licence does not allow it

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 itPrionitidae through timeFormations of the Early TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1879