Pseudosirenites

Pseudosirenites is a genus of Upper Triassic ammonites belonging to the ceratitid family Trachyceratidae, like Sirenites, but with a narrow outer rim (venter) that has a nodose keel on either side.

No picture of Pseudosirenites 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 Pseudosirenites, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
SirenitinaePBDB
Diet
carnivorePBDB, for Ceratitida
Life habit
nektonicPBDB, for Ceratitida
Motility
actively mobilePBDB, for Ceratitida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 32 million years on record.

Every occurrence read is dated to somewhere between 237 Mya and 205.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Middle Triassic — about 0 of 48 occurrencesLate Triassic — about 48 of 48 occurrencesLate Triassic238–237 Mya — about 0.0 occurrences237–235 Mya — about 0.0 occurrences235–234 Mya — about 0.0 occurrences234–233 Mya — about 0.0 occurrences233–232 Mya — about 0.0 occurrences232–231 Mya — about 0.0 occurrences231–230 Mya — about 0.0 occurrences230–229 Mya — about 0.0 occurrences229–228 Mya — about 0.0 occurrences228–227 Mya — about 0.2 occurrences227–226 Mya — about 0.3 occurrences226–225 Mya — about 0.3 occurrences225–224 Mya — about 0.3 occurrences224–222 Mya — about 0.3 occurrences222–221 Mya — about 0.3 occurrences221–220 Mya — about 0.3 occurrences220–219 Mya — about 0.3 occurrences219–218 Mya — about 0.3 occurrences218–217 Mya — about 0.3 occurrences217–216 Mya — about 0.3 occurrences216–215 Mya — about 6 occurrences215–214 Mya — about 11 occurrences214–213 Mya — about 11 occurrences213–212 Mya — about 11 occurrences212–210 Mya — about 4 occurrences210–209 Mya — about 0.1 occurrences209–208 Mya — about 0.1 occurrences208–207 Mya — about 0.1 occurrences207–206 Mya — about 0.1 occurrences206–205 Mya — about 0.1 occurrences237.6 Mya205.1 Mya

48 occurrences of Pseudosirenites on record, most of them in the Late Triassic. 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

48 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

4 formations

Pardonet — 56.12°N, 122.88°WPardonet — 56.05°N, 123.02°WPardonet — 56.17°N, 123.07°WPardonet — 56.08°N, 123.07°WPardonet — 56.09°N, 123.04°WPardonet — 57.38°N, 123.38°WPardonet — 56.47°N, 123.68°WPardonet — 56.95°N, 123.41°WPardonet — 56.48°N, 122.89°WPardonet — 56.10°N, 122.72°WNytymokin — 63.40°N, 176.99°ENutekin — 63.40°N, 176.99°ESandy Limestone — 30.14°N, 80.98°E

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The named rock units Pseudosirenites has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.

Pseudosirenites and its relatives

Late Triassic

Where Pseudosirenites and its relatives were recorded in the Late Triassic.

Found in the same rock

128 taxa

The Paleobiology Database records 42 sites for Pseudosirenites, 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

7 references

Each of the 48 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 Pseudosirenites 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 Pseudosirenites, or no answer at all. This entry cannot say which.

No 3D scan of Pseudosirenites 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.

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 itSirenitinae through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Arthaber 1911