Geyeroceras cylindricum

No picture of Geyeroceras cylindricum was found. Wikidata and iDigBio were searched and had none. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Geyeroceras cylindricum, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
Phylloceras (Geyeroceras)PBDB
Diet
carnivorePBDB, for Phylloceratida
Life habit
nektonicPBDB, for Phylloceratida
Motility
actively mobilePBDB, for Phylloceratida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 22 million years on record.

Every occurrence read is dated to somewhere between 205.7 Mya and 184.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Triassic — about 1 of 27 occurrencesLate TriassicEarly Jurassic — about 26 of 27 occurrencesEarly Jurassic206–205 Mya — about 0.0 occurrences205–205 Mya — about 0.1 occurrences205–204 Mya — about 0.1 occurrences204–203 Mya — about 0.1 occurrences203–202 Mya — about 0.1 occurrences202–202 Mya — about 0.1 occurrences202–201 Mya — about 0.3 occurrences201–200 Mya — about 0.5 occurrences200–199 Mya — about 0.6 occurrences199–199 Mya — about 3 occurrences199–198 Mya — about 3 occurrences198–197 Mya — about 3 occurrences197–196 Mya — about 3 occurrences196–196 Mya — about 3 occurrences196–195 Mya — about 3 occurrences195–194 Mya — about 3 occurrences194–193 Mya — about 3 occurrences193–193 Mya — about 2 occurrences193–192 Mya — about 0.1 occurrences192–191 Mya — about 0.1 occurrences191–190 Mya — about 0.1 occurrences190–190 Mya — about 0.1 occurrences190–189 Mya — about 0.1 occurrences189–188 Mya — about 0.1 occurrences188–187 Mya — about 0.1 occurrences187–187 Mya — about 0.1 occurrences187–186 Mya — about 0.1 occurrences186–185 Mya — about 0.1 occurrences185–184 Mya — about 0.1 occurrences184–184 Mya — about 0.0 occurrences206.2 Mya183.7 Mya

27 occurrences of Geyeroceras cylindricum on record, most of them in the Early 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

27 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

6 formations

Isztimér Limestone — 47.20°N, 17.90°EIsztimér Limestone — 46.98°N, 17.30°ESchnöll — 47.70°N, 13.17°EIsztimér — 47.18°N, 17.83°EHuayacocotla — 20.33°N, 98.22°WAdnet — 47.17°N, 10.03°EAdnet — 46.01°N, 25.47°E

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The named rock units Geyeroceras cylindricum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.

Geyeroceras cylindricum and its relatives

Early Jurassic

Where Geyeroceras cylindricum and its relatives were recorded in the Early Jurassic.

Found in the same rock

203 taxa

The Paleobiology Database records 19 sites for Geyeroceras cylindricum, 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

8 references

Each of the 27 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 content0

No picture of Geyeroceras cylindricum was found. Wikidata and iDigBio were searched and had none.

Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Geyeroceras cylindricum, or no answer at all. This entry cannot say which.

No 3D scan of Geyeroceras cylindricum was found in MorphoSource and Sketchfab.

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

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPhylloceras (Geyeroceras) through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Sowerby 1833)