Perleididae

Perleidiformes are an extinct order of prehistoric ray-finned fish from the Triassic period Although numerous Triassic taxa have been referred to Perleidiformes, which ones should be included for it to form a monophyletic group is a matter of ongoing scientific debate.

Perleididae

ZUOYU SUN ANDREA TINTORI DAYONG JIANG RYOSUKE MOTANI · CC BY-SA 4.0 · via Wikipedia/Commons. 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
PerleidiformesPBDB
Diet
grazer, detritivorePBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At least 35 million years on record.

The record covers at least 251.1 Mya to 215.38 Mya. No occurrence read is dated outside 251.902 Mya to 201.4 Mya.

Permian — about 0 of 99 occurrencesEarly Triassic — about 37 of 99 occurrencesEarly TriassicMiddle Triassic — about 49 of 99 occurrencesMiddle TriassicLate Triassic — about 13 of 99 occurrencesLate TriassicEarly Jurassic — about 0 of 99 occurrences253–251 Mya — about 6 occurrences251–249 Mya — about 21 occurrences249–248 Mya — about 9 occurrences248–246 Mya — about 2 occurrences246–244 Mya — about 2 occurrences244–242 Mya — about 14 occurrences242–241 Mya — about 13 occurrences241–239 Mya — about 7 occurrences239–237 Mya — about 11 occurrences237–235 Mya — about 2 occurrences235–234 Mya — about 0.8 occurrences234–232 Mya — about 0.8 occurrences232–230 Mya — about 0.8 occurrences230–228 Mya — about 0.8 occurrences228–227 Mya — about 0.6 occurrences227–225 Mya — about 0.2 occurrences225–223 Mya — about 0.2 occurrences223–221 Mya — about 0.2 occurrences221–220 Mya — about 0.2 occurrences220–218 Mya — about 0.2 occurrences218–216 Mya — about 0.2 occurrences216–214 Mya — about 2 occurrences214–213 Mya — about 3 occurrences213–211 Mya — about 2 occurrences211–209 Mya — about 0.2 occurrences209–207 Mya — about 0.2 occurrences207–206 Mya — about 0.2 occurrences206–204 Mya — about 0.0 occurrences204–202 Mya — about 0.0 occurrences202–200 Mya — about 0.0 occurrences251.1 Mya215.38 Mya253 Mya200 Mya

99 occurrences of Perleididae on record, most of them in the Middle 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

99 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

27 formations

Besano — 45.91°N, 8.95°EBesano — 45.90°N, 8.96°EBesano — 45.89°N, 8.90°EBesano — 45.96°N, 8.81°ECamadas com peixes — 8.48°S, 20.55°ECamadas com peixes — 9.33°S, 17.75°ECamadas com peixes — 9.68°S, 17.50°ECamadas com peixes — 8.43°S, 20.51°EPerledo-Varenna — 46.02°N, 9.30°EQinglong — 32.06°N, 119.34°EMuschelkalk — 41.27°N, 1.12°EHelongshan — 31.62°N, 117.82°EGuanling — 24.78°N, 104.33°EKongressfjellet — 78.27°N, 16.97°EKongressfjellet — 78.28°N, 17.63°EKongressfjellet — 78.57°N, 15.32°EDaye — 30.17°N, 115.06°EDaye — 26.51°N, 106.87°EDaye — 26.57°N, 107.08°ECalcare di Zorzino — 45.82°N, 9.60°EChinle — 35.84°N, 111.25°WChinle — 35.65°N, 111.12°WTimezgadiouine — 31.07°N, 8.93°WYinkeng — 31.08°N, 119.71°EMeride — 45.88°N, 8.90°EMeride — 45.89°N, 8.95°EMadygen — 40.05°N, 70.21°EOtter Sandstone — 50.67°N, 3.27°WSulphur Mountain — 54.53°N, 120.74°WBromsgrove Sandstone — 52.33°N, 2.08°WWordie Creek — 71.70°N, 22.62°WTarasci — 37.40°N, 31.85°EHongyanjing — 41.95°N, 96.53°EProsanto — 46.77°N, 9.75°E

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The named rock units Perleididae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 further formations hold fewer occurrences each and are not listed. 22 occurrences have no formation on record, which is common for older literature.

Perleididae and its relatives

Middle Triassic

Where Perleididae and its relatives were recorded in the Middle Triassic.

Found in the same rock

475 taxa

The Paleobiology Database records 78 sites for Perleididae, 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

49 references

Each of the 99 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. 37 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 Perleididae

Credit
ZUOYU SUN ANDREA TINTORI DAYONG JIANG RYOSUKE MOTANI
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Perleididae 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 itPerleidiformes through timeFormations of the Middle TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Brough 1931