Exocyrtoceras

Exocyrtoceras

via iDigBio · CC0 · via iDigBio. 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
BrevicoceratidaePBDB
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 5.6 million years on record.

Every occurrence read is dated to somewhere between 393.47 Mya and 387.95 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Devonian — about 4 of 4 occurrencesDevonian394–393 Mya — about 0.1 occurrences393–393 Mya — about 0.2 occurrences393–393 Mya — about 0.2 occurrences393–393 Mya — about 0.2 occurrences393–392 Mya — about 0.2 occurrences392–392 Mya — about 0.2 occurrences392–392 Mya — about 0.2 occurrences392–392 Mya — about 0.2 occurrences392–392 Mya — about 0.2 occurrences392–391 Mya — about 0.2 occurrences391–391 Mya — about 0.2 occurrences391–391 Mya — about 0.2 occurrences391–391 Mya — about 0.2 occurrences391–390 Mya — about 0.2 occurrences390–390 Mya — about 0.2 occurrences390–390 Mya — about 0.2 occurrences390–390 Mya — about 0.2 occurrences390–390 Mya — about 0.2 occurrences390–389 Mya — about 0.2 occurrences389–389 Mya — about 0.2 occurrences389–389 Mya — about 0.2 occurrences389–389 Mya — about 0.2 occurrences389–389 Mya — about 0.2 occurrences389–388 Mya — about 0.2 occurrences388–388 Mya — about 0.2 occurrences388–388 Mya — about 0.1 occurrences394 Mya387.4 Mya

4 occurrences of Exocyrtoceras on record, most of them in the Devonian. 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

4 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

1 formation

Amherstburg — 43.98°N, 81.28°W

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

Exocyrtoceras and its relatives

Devonian

Where Exocyrtoceras and its relatives were recorded in the Devonian.

Found in the same rock

89 taxa

The Paleobiology Database records 3 sites for Exocyrtoceras, 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

1 reference

Each of the 4 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 content1

Picture of Exocyrtoceras

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Exocyrtoceras 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 itBrevicoceratidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Flower 1938