Yunnanolepididae

Yunnanolepididae is an extinct family of primitive Antiarch placoderms characterized by having short, broad skull roofs, and by having a feature on the visceral side of the posterior medial dorsal plate, the crista transversalis interna posterior, which is diagnostic of antiarchs, turning forward, and lying in front of the posterior ventral process and pit.

Yunnanolepididae

Apokryltaros at English Wikipedia · CC BY 2.5 · 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
YunnanolepidiformesPBDB
Diet
carnivorePBDB, for Placodermi
Life habit
nektonicPBDB, for Placodermi
Motility
actively mobilePBDB, for Placodermi

Time the record covers

At least 2.4 million years on record.

The record covers at least 413.02 Mya to 410.62 Mya. No occurrence read is dated outside 419.62 Mya to 399.5 Mya.

Silurian — about 0 of 18 occurrencesDevonian — about 18 of 18 occurrencesDevonian420–419 Mya — about 0.4 occurrences419–419 Mya — about 1 occurrence419–418 Mya — about 1 occurrence418–417 Mya — about 1 occurrence417–417 Mya — about 1 occurrence417–416 Mya — about 1 occurrence416–415 Mya — about 1 occurrence415–414 Mya — about 1 occurrence414–414 Mya — about 2 occurrences414–413 Mya — about 2 occurrences413–412 Mya — about 1 occurrence412–412 Mya — about 1.0 occurrences412–411 Mya — about 1.0 occurrences411–410 Mya — about 0.5 occurrences410–410 Mya — about 0.1 occurrences410–409 Mya — about 0.1 occurrences409–408 Mya — about 0.1 occurrences408–407 Mya — about 0.1 occurrences407–407 Mya — about 0.1 occurrences407–406 Mya — about 0.1 occurrences406–405 Mya — about 0.1 occurrences405–405 Mya — about 0.1 occurrences405–404 Mya — about 0.1 occurrences404–403 Mya — about 0.1 occurrences403–403 Mya — about 0.1 occurrences403–402 Mya — about 0.1 occurrences402–401 Mya — about 0.1 occurrences401–400 Mya — about 0.1 occurrences400–400 Mya — about 0.1 occurrences400–399 Mya — about 0.0 occurrences413.02 Mya – 410.62 Mya420.1 Mya399 Mya

18 occurrences of Yunnanolepididae 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

18 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

7 formations

Xitun — 25.49°N, 103.80°EXishancun — 25.49°N, 103.80°ELianhuashan — 22.39°N, 107.55°ESi Ka — 21.86°N, 105.84°ESi Ka — 23.35°N, 105.29°EBac Bun — 21.68°N, 106.56°EXujiachong — 25.59°N, 103.81°EXujiachong — 25.57°N, 103.74°EKhao Loc — 23.06°N, 104.93°E

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The named rock units Yunnanolepididae has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Yunnanolepididae and its relatives

Devonian

Where Yunnanolepididae and its relatives were recorded in the Devonian.

Found in the same rock

109 taxa

The Paleobiology Database records 10 sites for Yunnanolepididae, 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

9 references

Each of the 18 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. 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 Yunnanolepididae

Credit
Apokryltaros at English Wikipedia
Licence
CC BY 2.5
Commercial use
the licence allows it

No 3D scan of Yunnanolepididae 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 itYunnanolepidiformes through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Zhang 1978