Leptolepididae

Leptolepis normandica Nybelin, 1962, a relative of Leptolepididae — not Leptolepididae itself

Not Leptolepididae. This is Leptolepis normandica Nybelin, 1962, a relative — both are Leptolepididae.

équipe des Fouilles du MnhnL · CC0 · via GBIF. 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
LeptolepidiformesPBDB
Diet
carnivorePBDB
Life habit
nektonicPBDB
Motility
actively mobilePBDB

Time the record covers

At least 136 million years on record.

The record covers at least 237 Mya to 100.5 Mya. No occurrence read is dated outside 239.48 Mya to 66 Mya.

Middle Triassic — about 1 of 72 occurrencesLate Triassic — about 0 of 72 occurrencesEarly Jurassic — about 42 of 72 occurrencesEarly JurassicMiddle Jurassic — about 5 of 72 occurrencesLate Jurassic — about 9 of 72 occurrencesLate JurassicEarly Cretaceous — about 10 of 72 occurrencesEarly CretaceousLate Cretaceous — about 6 of 72 occurrencesLate CretaceousPaleocene — about 0 of 72 occurrences243–237 Mya — about 1 occurrence207–201 Mya — about 0.0 occurrences201–195 Mya — about 0.8 occurrences195–189 Mya — about 0.9 occurrences189–183 Mya — about 24 occurrences183–177 Mya — about 12 occurrences177–171 Mya — about 5 occurrences171–165 Mya — about 3 occurrences165–159 Mya — about 2 occurrences159–153 Mya — about 2 occurrences153–147 Mya — about 3 occurrences147–141 Mya — about 3 occurrences141–135 Mya — about 0.8 occurrences135–129 Mya — about 0.8 occurrences129–123 Mya — about 3 occurrences123–117 Mya — about 3 occurrences117–111 Mya — about 1 occurrence111–105 Mya — about 0.1 occurrences105–99 Mya — about 2 occurrences99–93 Mya — about 4 occurrences93–87 Mya — about 0.2 occurrences87–81 Mya — about 0.2 occurrences81–75 Mya — about 0.2 occurrences75–69 Mya — about 0.2 occurrences69–63 Mya — about 0.1 occurrences237 Mya100.5 Mya243 Mya63 Mya

72 occurrences of Leptolepididae on record, most of them in the Early 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

72 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

18 formations

Starigrad Limestone — 43.19°N, 16.65°EPurlawaugh — 32.17°S, 149.70°ESainte-Barbe Clays — 50.48°N, 3.65°EThird — 33.83°N, 130.85°ELa Pedrera de Rúbies — 42.03°N, 0.83°ECalcaires de Caen — 49.42°N, 0.40°ENishinakayama — 34.25°N, 131.00°EMorrison — 39.24°N, 109.00°WCalcare di Sogno — 45.83°N, 9.30°EPosidonia Shale — 52.11°N, 10.32°EHauberg Mountains — 75.44°S, 75.69°WWhitby Mudstone — 52.01°N, 1.99°WWeber — 39.51°N, 115.96°WOxford Clay — 51.50°N, 2.06°WPerledo-Varenna — 46.02°N, 9.30°EBeacon Limstone — 50.93°N, 2.91°WSogno — 45.79°N, 9.47°EGrünsandstein — 48.93°N, 11.83°E

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The named rock units Leptolepididae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 45 occurrences have no formation on record, which is common for older literature.

Leptolepididae and its relatives

Early Jurassic

Where Leptolepididae and its relatives were recorded in the Early Jurassic.

Found in the same rock

564 taxa

The Paleobiology Database records 58 sites for Leptolepididae, 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

37 references

Each of the 72 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. 25 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 Leptolepis normandica Nybelin, 1962

Source
GBIF
Credit
équipe des Fouilles du MnhnL
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Leptolepididae was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itLeptolepidiformes through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Owen 1859