Ankyloceras

Ankyloceras is a genus of Early Devonian cephalopods included in the oncocerid family Karoceratidae. The type species, Ankyloceras nesnayamiense named by Zhuravleva, 1974, comes from Nova Zemlya in Russia. Other species have been found in Japan, Morocco, and Russia.

No picture of Ankyloceras was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Ankyloceras, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
KaroceratidaePBDB
Diet
carnivorePBDB, for Oncocerida
Life habit
nektobenthicPBDB, for Oncocerida
Motility
fast-movingPBDB, for Cephalopoda
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 9.7 million years on record.

Every occurrence read is dated to somewhere between 422.7 Mya and 413.02 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Silurian — about 1 of 2 occurrencesSilurianDevonian — about 1 of 2 occurrencesDevonian423–422 Mya — about 0.1 occurrences422–422 Mya — about 0.1 occurrences422–422 Mya — about 0.1 occurrences422–421 Mya — about 0.1 occurrences421–421 Mya — about 0.1 occurrences421–421 Mya — about 0.1 occurrences421–420 Mya — about 0.1 occurrences420–420 Mya — about 0.1 occurrences420–420 Mya — about 0.1 occurrences420–419 Mya — about 0.1 occurrences419–419 Mya — about 0.1 occurrences419–419 Mya — about 0.1 occurrences419–418 Mya — about 0.1 occurrences418–418 Mya — about 0.1 occurrences418–418 Mya — about 0.1 occurrences418–417 Mya — about 0.1 occurrences417–417 Mya — about 0.1 occurrences417–416 Mya — about 0.1 occurrences416–416 Mya — about 0.1 occurrences416–416 Mya — about 0.1 occurrences416–415 Mya — about 0.1 occurrences415–415 Mya — about 0.1 occurrences415–415 Mya — about 0.1 occurrences415–414 Mya — about 0.1 occurrences414–414 Mya — about 0.1 occurrences414–414 Mya — about 0.1 occurrences414–413 Mya — about 0.1 occurrences413–413 Mya — about 0.0 occurrences423.2 Mya412.5 Mya

2 occurrences of Ankyloceras on record, most of them in the Silurian. 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

2 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

2 formations

Pyatipaltsevskaya — 72.00°N, 52.00°EScyphocrinites Limestone — 30.95°N, 4.05°W

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The named rock units Ankyloceras has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Ankyloceras and its relatives

Silurian

Where Ankyloceras and its relatives were recorded in the Silurian.

Found in the same rock

41 taxa

The Paleobiology Database records 2 sites for Ankyloceras, 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

2 references

Each of the 2 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content0

No picture of Ankyloceras was found. Wikipedia, Wikidata and iDigBio were searched and had none.

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 Ankyloceras, or no answer at all. This entry cannot say which.

No 3D scan of Ankyloceras 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.

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 itKaroceratidae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Zhuravleva 1974