Dapedium

Dapedium is a genus of deep-bodied ray-finned fish belonging to the extinct family Dapediidae. Dapedium lived in the Late Triassic to the Middle Jurassic period, from the late Norian to the early Aalenian, being one of the most abundant fossil fish found in Early Jurassic deposits in Europe.

Dapedium

Steven G. Johnson · CC BY-SA 3.0 · 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
DapediidaePBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At least 110 million years on record.

The record covers at least 211.18 Mya to 100.5 Mya. No occurrence read is dated outside 215.38 Mya to 93.9 Mya.

Late Triassic — about 9 of 70 occurrencesLate TriassicEarly Jurassic — about 56 of 70 occurrencesEarly JurassicMiddle Jurassic — about 3 of 70 occurrencesMiddle JurassicLate Jurassic — about 0 of 70 occurrencesEarly Cretaceous — about 0 of 70 occurrencesLate Cretaceous — about 2 of 70 occurrences218–214 Mya — about 3 occurrences214–209 Mya — about 3 occurrences209–205 Mya — about 0.4 occurrences205–201 Mya — about 4 occurrences201–197 Mya — about 16 occurrences197–193 Mya — about 14 occurrences193–188 Mya — about 0.5 occurrences188–184 Mya — about 1 occurrence184–180 Mya — about 16 occurrences180–176 Mya — about 5 occurrences176–171 Mya — about 4 occurrences171–167 Mya — about 0.5 occurrences104–100 Mya — about 0.2 occurrences100–96 Mya — about 1 occurrence96–91 Mya — about 0.5 occurrences211.18 Mya100.5 Mya218 Mya91 Mya

70 occurrences of Dapedium 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

70 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

10 formations

Posidonia Shale — 48.63°N, 9.52°EPosidonia Shale — 48.65°N, 9.57°EPosidonia Shale — 48.66°N, 9.53°ECalcare di Zorzino — 45.82°N, 9.60°EOpalinuston — 48.64°N, 9.59°EOpalinuston — 48.66°N, 9.64°EOpalinuston — 48.74°N, 9.70°EKhodzhakul — 40.10°N, 65.80°EMarnes de Jamoigne — 49.72°N, 5.22°EKlettgau — 47.71°N, 8.45°ELombardische Kieselkalk — 46.00°N, 9.08°EZorzino Limestone — 45.78°N, 9.82°EPosidonienschiefer — 48.63°N, 9.52°EDolomia Principale — 40.72°N, 14.95°E

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The named rock units Dapedium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 50 occurrences have no formation on record, which is common for older literature.

Dapedium and its relatives

Early Jurassic

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

Found in the same rock

357 taxa

The Paleobiology Database records 45 sites for Dapedium, 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

20 references

Each of the 70 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. 8 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 content3

Picture of Dapedium

Credit
Steven G. Johnson
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

Structured light scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Dapedium punctatum · oumnh:pal:J.003001

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Leach 1822