Holoptychiidae

Porolepiformes is an order of prehistoric lobe-finned fish which lived during the Devonian period. They are thought to represent the sister group to lungfish. The group contains two families: Holoptychiidae and Porolepididae.

Holoptychiidae

DiBgd · 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
PorolepidiformesPBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At least 34 million years on record.

The record covers at least 393.47 Mya to 358.86 Mya. No occurrence read is dated outside 410.62 Mya to 323.4 Mya.

Devonian — about 111 of 112 occurrencesDevonianCarboniferous — about 1 of 112 occurrencesCarboniferous412–409 Mya — about 0.3 occurrences409–406 Mya — about 0.7 occurrences406–403 Mya — about 0.7 occurrences403–400 Mya — about 0.7 occurrences400–397 Mya — about 0.7 occurrences397–394 Mya — about 0.7 occurrences394–391 Mya — about 6 occurrences391–388 Mya — about 8 occurrences388–385 Mya — about 13 occurrences385–382 Mya — about 13 occurrences382–379 Mya — about 16 occurrences379–376 Mya — about 9 occurrences376–373 Mya — about 9 occurrences373–370 Mya — about 6 occurrences370–367 Mya — about 6 occurrences367–364 Mya — about 8 occurrences364–361 Mya — about 8 occurrences361–358 Mya — about 6 occurrences358–355 Mya — about 0.1 occurrences355–352 Mya — about 0.1 occurrences352–349 Mya — about 0.1 occurrences349–346 Mya — about 0.1 occurrences346–343 Mya — about 0.1 occurrences343–340 Mya — about 0.1 occurrences340–337 Mya — about 0.1 occurrences337–334 Mya — about 0.1 occurrences334–331 Mya — about 0.1 occurrences331–328 Mya — about 0.1 occurrences328–325 Mya — about 0.1 occurrences325–322 Mya — about 0.0 occurrences393.47 Mya358.86 Mya412 Mya322 Mya

112 occurrences of Holoptychiidae on record, most of them in the Devonian. 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

112 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

47 formations

Lybster Flagstone — 58.47°N, 3.46°WLybster Flagstone — 57.83°N, 4.18°WLybster Flagstone — 57.68°N, 2.34°WLybster Flagstone — 57.64°N, 3.03°WCatskill — 41.81°N, 77.78°WCatskill — 41.43°N, 77.10°WParting — 38.50°N, 105.92°WParting — 38.82°N, 106.74°WParting — 38.67°N, 106.62°WEvieux — 50.67°N, 5.70°EEvieux — 50.45°N, 5.28°EBurtnieki — 58.10°N, 25.55°EChemung — 41.68°N, 76.71°WChemung — 41.58°N, 75.78°WEscuminac — 48.11°N, 66.40°WGauja — 58.01°N, 25.38°ENarva — 59.38°N, 28.19°ENarva — 57.55°N, 25.29°EAruküla — 59.37°N, 25.08°EPolotsk — 51.88°N, 26.85°EPolotsk — 52.88°N, 26.86°EYam-Tesovo — 58.89°N, 30.56°EBear Rock — 68.18°N, 125.84°WAruküla — 57.55°N, 25.28°ELan' — 52.16°N, 27.30°EOld Red Sandstone — 51.50°N, 2.78°WKetleri — 56.70°N, 22.13°EKetleri — 56.59°N, 22.01°EFram — 77.17°N, 86.27°WElbert — 37.50°N, 107.63°WElbert — 37.54°N, 107.47°WTurgenevo — 52.90°N, 36.03°ETērvete — 56.46°N, 23.25°EPļaviņas — 59.89°N, 32.80°ETsilemskaya — 65.51°N, 49.34°E

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The named rock units Holoptychiidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 23 further formations hold fewer occurrences each and are not listed. 19 occurrences have no formation on record, which is common for older literature.

Holoptychiidae and its relatives

Devonian

Where Holoptychiidae and its relatives were recorded in the Devonian.

Found in the same rock

507 taxa

The Paleobiology Database records 75 sites for Holoptychiidae, 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

47 references

Each of the 112 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. 35 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 content2

Picture of Holoptychiidae

Credit
DiBgd
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Holoptychiidae indet. · GTK:GIT:499-7

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 itPorolepidiformes through timeFormations of the DevonianThe world it lived on

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