Sirenites

Sirenites is a genus of ammonoid cephalopods from the Upper Triassic included in the Ceratitida, and type for the trachyceratid subfamily Sirenitinae.

Sirenites

via iDigBio · 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
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 least 6.3 million years on record.

The record covers at least 233.6 Mya to 227.3 Mya. No occurrence read is dated outside 237 Mya to 205.7 Mya.

Middle Triassic — about 0 of 51 occurrencesLate Triassic — about 51 of 51 occurrencesLate Triassic238–237 Mya — about 4 occurrences237–235 Mya — about 9 occurrences235–234 Mya — about 9 occurrences234–233 Mya — about 7 occurrences233–232 Mya — about 4 occurrences232–231 Mya — about 4 occurrences231–230 Mya — about 4 occurrences230–229 Mya — about 4 occurrences229–228 Mya — about 4 occurrences228–227 Mya — about 2 occurrences227–226 Mya — about 0.1 occurrences226–225 Mya — about 0.1 occurrences225–224 Mya — about 0.1 occurrences224–222 Mya — about 0.1 occurrences222–221 Mya — about 0.1 occurrences221–220 Mya — about 0.1 occurrences220–219 Mya — about 0.1 occurrences219–218 Mya — about 0.1 occurrences218–217 Mya — about 0.1 occurrences217–216 Mya — about 0.1 occurrences216–215 Mya — about 0.1 occurrences215–214 Mya — about 0.1 occurrences214–213 Mya — about 0.1 occurrences213–212 Mya — about 0.1 occurrences212–210 Mya — about 0.1 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 0.0 occurrences233.6 Mya227.3 Mya237.6 Mya205.1 Mya

51 occurrences of Sirenites 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

51 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

16 formations

Blaa Mountain — 80.93°N, 89.27°WBlaa Mountain — 80.80°N, 88.88°WBlaa Mountain — 80.65°N, 87.80°WBlaa Mountain — 79.45°N, 87.60°WBlaa Mountain — 80.74°N, 88.45°WBlaa Mountain — 80.54°N, 86.14°WBlaa Mountain — 80.93°N, 89.23°WBlaa Mountain — 80.55°N, 86.28°WBlaa Mountain — 80.53°N, 94.54°WLudington — 59.05°N, 125.04°WLudington — 59.08°N, 125.33°WLudington — 59.08°N, 125.44°WSchei Point — 77.17°N, 95.20°WSchei Point — 78.98°N, 84.92°WSchei Point — 78.55°N, 110.67°WKasimlar — 37.55°N, 31.30°EHosselkus — 40.85°N, 122.10°WTschermakfjellet — 78.53°N, 15.35°EQuatsino Limestone — 50.68°N, 127.63°WOtuk — 64.22°N, 134.12°WXiaowa — 25.90°N, 105.42°EEbitiem — 71.82°N, 127.64°EPardonet — 59.08°N, 125.32°WJimi — 5.65°S, 144.85°EAugusta Mountain — 40.50°N, 117.95°WSabudani — 33.81°N, 134.23°EHallstatt — 43.84°N, 18.43°ESandy Limestone — 30.14°N, 80.98°E

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The named rock units Sirenites has been recovered from, largest first. Drawn where the rock is now, not where it formed. 18 occurrences have no formation on record, which is common for older literature.

Sirenites and its relatives

Late Triassic

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

Found in the same rock

214 taxa

The Paleobiology Database records 41 sites for Sirenites, 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

21 references

Each of the 51 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. 9 further references are not listed. 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 content1

Picture of Sirenites

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Sirenites 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. (Mojsisovics 1893)