Ermoceras (Kosmermoceras) aulacostephanus

No picture of Ermoceras (Kosmermoceras) aulacostephanus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Ermoceras (Kosmermoceras) aulacostephanus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
KosmermocerasPBDB
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 2.7 million years on record.

Every occurrence read is dated to somewhere between 170.9 Mya and 168.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Middle Jurassic — about 2 of 2 occurrencesMiddle Jurassic171–171 Mya — about 0.0 occurrences171–171 Mya — about 0.0 occurrences171–171 Mya — about 0.0 occurrences171–170 Mya — about 0.0 occurrences170–170 Mya — about 0.0 occurrences170–170 Mya — about 0.0 occurrences170–170 Mya — about 0.0 occurrences170–170 Mya — about 0.0 occurrences170–170 Mya — about 0.0 occurrences170–170 Mya — about 0.0 occurrences170–170 Mya — about 0.0 occurrences170–169 Mya — about 0.0 occurrences169–169 Mya — about 0.0 occurrences169–169 Mya — about 0.0 occurrences169–169 Mya — about 0.0 occurrences169–169 Mya — about 0.0 occurrences169–169 Mya — about 0.0 occurrences169–169 Mya — about 0.0 occurrences169–169 Mya — about 0.1 occurrences169–168 Mya — about 0.4 occurrences168–168 Mya — about 0.4 occurrences168–168 Mya — about 0.3 occurrences171.4 Mya167.7 Mya

2 occurrences of Ermoceras (Kosmermoceras) aulacostephanus 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

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

1 formation

Dhruma — 25.50°N, 45.00°EDhruma — 25.50°N, 45.22°E

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The named rock units Ermoceras (Kosmermoceras) aulacostephanus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Ermoceras (Kosmermoceras) aulacostephanus and its relatives

Middle Jurassic

Where Ermoceras (Kosmermoceras) aulacostephanus and its relatives were recorded in the Middle Jurassic.

Found in the same rock

19 taxa

The Paleobiology Database records 2 sites for Ermoceras (Kosmermoceras) aulacostephanus, and this reads all of them. The number is how many of those sites it was catalogued from too.

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 Ermoceras (Kosmermoceras) aulacostephanus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

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

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itKosmermoceras through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Arkell 1952