Graphoceras

Searched as Graphoceras concavum heryopontensis. The Paleobiology Database treats Graphoceras as the accepted name.

Graphoceras

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
GraphoceratinaePBDB
Diet
carnivorePBDB, for Ammonoidea
Life habit
nektonicPBDB, for Ammonoidea
Motility
fast-movingPBDB, for Ammonoidea
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 3.8 million years on record.

The one occurrence read is dated to somewhere between 174.7 Mya and 170.9 Mya, which is a dating window rather than a span.

Early Jurassic — about 0 of 1 occurrenceMiddle Jurassic — about 1 of 1 occurrenceMiddle Jurassic175–175 Mya — about 0.0 occurrences175–174 Mya — about 0.0 occurrences174–174 Mya — about 0.0 occurrences174–174 Mya — about 0.0 occurrences174–174 Mya — about 0.0 occurrences174–174 Mya — about 0.0 occurrences174–174 Mya — about 0.0 occurrences174–173 Mya — about 0.0 occurrences173–173 Mya — about 0.0 occurrences173–173 Mya — about 0.0 occurrences173–173 Mya — about 0.0 occurrences173–173 Mya — about 0.0 occurrences173–173 Mya — about 0.0 occurrences173–172 Mya — about 0.0 occurrences172–172 Mya — about 0.0 occurrences172–172 Mya — about 0.0 occurrences172–172 Mya — about 0.0 occurrences172–172 Mya — about 0.0 occurrences172–172 Mya — about 0.0 occurrences172–172 Mya — about 0.0 occurrences172–171 Mya — about 0.0 occurrences171–171 Mya — about 0.0 occurrences171–171 Mya — about 0.0 occurrences171–171 Mya — about 0.0 occurrences175.2 Mya170.4 Mya

1 occurrence of Graphoceras on record, most of them in the Middle 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

1 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.

Graphoceras and its relatives

Middle Jurassic

Where Graphoceras and its relatives were recorded in the Middle Jurassic.

Found in the same rock

120 taxa

The Paleobiology Database records 31 sites for Graphoceras, 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 1 occurrence 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 Graphoceras

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

No 3D scan of Graphoceras was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itGraphoceratinae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.