Tshekardocoleidae

Tshekardocoleidae is an extinct family of stem group beetles, known from the Early Permian. They represent some of the earliest known beetles. They first appeared during the Cisuralian, before becoming extinct at the beginning of the Guadalupian. A claimed Jurassic record is doubtful. Like other primitive beetles, they are thought to have been xylophagous. The oldest known beetle, Coleopsis, was originally assigned to this family, but is now assigned to its own family Coleopsidae.

Tshekardocoleidae

Xianye Zhao, Yilun Yu, Matthew E Clapham, Evgeny Yan, Jun Chen, Edmund A Jarzembowski, Xiangdong Zhao, Bo Wang · CC BY 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
ColeopteraPBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 19 million years on record.

The record covers at least 293.52 Mya to 274.4 Mya. No occurrence read is dated outside 298.9 Mya to 266.9 Mya.

Carboniferous — about 0 of 22 occurrencesPermian — about 22 of 22 occurrencesPermian300–298 Mya — about 0.9 occurrences298–297 Mya — about 2 occurrences297–296 Mya — about 2 occurrences296–295 Mya — about 2 occurrences295–294 Mya — about 2 occurrences294–293 Mya — about 0.9 occurrences291–290 Mya — about 0.2 occurrences290–288 Mya — about 0.3 occurrences288–287 Mya — about 0.3 occurrences287–286 Mya — about 0.3 occurrences286–285 Mya — about 0.3 occurrences285–284 Mya — about 0.3 occurrences284–283 Mya — about 0.6 occurrences283–282 Mya — about 1 occurrence282–281 Mya — about 1 occurrence281–280 Mya — about 1 occurrence280–278 Mya — about 1 occurrence278–277 Mya — about 1 occurrence277–276 Mya — about 1 occurrence276–275 Mya — about 1 occurrence275–274 Mya — about 0.8 occurrences274–273 Mya — about 0.1 occurrences273–272 Mya — about 0.1 occurrences272–271 Mya — about 0.1 occurrences271–270 Mya — about 0.1 occurrences270–268 Mya — about 0.1 occurrences268–267 Mya — about 0.1 occurrences267–266 Mya — about 0.1 occurrences293.52 Mya274.4 Mya299.5 Mya266.3 Mya

22 occurrences of Tshekardocoleidae on record, most of them in the Permian. 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

22 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

4 formations

Letovice — 49.46°N, 16.60°EKoshelevka — 57.03°N, 57.72°EKoshelevka — 57.77°N, 57.84°EWellington — 36.28°N, 97.28°WWellington — 36.51°N, 97.32°WIva-Gora Beds — 65.55°N, 43.67°E

Loading coastlines…

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

Tshekardocoleidae and its relatives

Permian

Where Tshekardocoleidae and its relatives were recorded in the Permian.

Found in the same rock

456 taxa

The Paleobiology Database records 8 sites for Tshekardocoleidae, 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 22 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 Tshekardocoleidae

Credit
Xianye Zhao, Yilun Yu, Matthew E Clapham, Evgeny Yan, Jun Chen, Edmund A Jarzembowski, Xiangdong Zhao, Bo Wang
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Tshekardocoleidae 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 itColeoptera through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rohdendorf 1944