Thelodontiformes

Thelodontiformes is an extinct order of jawless fish of the Silurian.

Thelodontiformes

Apokryltaros · 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
ThelodontiPBDB
Motility
actively mobilePBDB, for Chordata

Time the record covers

At least 355 million years on record.

The record covers at least 449.6 Mya to 93.9 Mya. No occurrence read is dated outside 457.3 Mya to 89.8 Mya.

Ordovician — about 1 of 392 occurrencesSilurian — about 321 of 392 occurrencesDevonian — about 68 of 392 occurrencesDevonianCarboniferous — about 0 of 392 occurrencesPermian — about 0 of 392 occurrencesEarly Triassic — about 0 of 392 occurrencesMiddle Triassic — about 0 of 392 occurrencesLate Triassic — about 0 of 392 occurrencesEarly Jurassic — about 0 of 392 occurrencesMiddle Jurassic — about 0 of 392 occurrencesLate Jurassic — about 0 of 392 occurrencesEarly Cretaceous — about 0 of 392 occurrencesLate Cretaceous — about 2 of 392 occurrences465–452 Mya — about 0.7 occurrences452–439 Mya — about 4 occurrences439–426 Mya — about 35 occurrences426–414 Mya — about 317 occurrences414–401 Mya — about 9 occurrences401–388 Mya — about 12 occurrences388–375 Mya — about 9 occurrences375–363 Mya — about 4 occurrences363–350 Mya — about 0.6 occurrences95–82 Mya — about 2 occurrences449.6 Mya93.9 Mya465 Mya82 Mya

392 occurrences of Thelodontiformes on record, most of them in the Silurian. 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

392 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

100 formations

Whitcliffe — 52.37°N, 2.72°WWhitcliffe — 52.53°N, 2.63°WWhitcliffe — 52.45°N, 2.72°WWhitcliffe — 52.07°N, 2.35°WWhitcliffe — 51.58°N, 1.87°WWhitcliffe — 52.45°N, 2.12°WWhitcliffe — 51.70°N, 2.45°WWhitcliffe — 52.05°N, 2.57°WWhitcliffe — 52.93°N, 4.37°WWhitcliffe — 52.43°N, 2.75°WUpper Whitcliffe — 52.93°N, 4.37°WUpper Whitcliffe — 52.47°N, 1.88°WUpper Whitcliffe — 52.37°N, 2.70°WUpper Whitcliffe — 52.05°N, 2.70°WUpper Whitcliffe — 52.05°N, 2.57°WDownton Castle Sandstone — 52.37°N, 2.73°WDownton Castle Sandstone — 52.57°N, 2.48°WDownton Castle Sandstone — 52.20°N, 3.00°WDownton Castle Sandstone — 52.00°N, 3.00°WDownton Castle Sandstone — 52.45°N, 2.12°WDownton Castle Sandstone — 52.93°N, 4.37°WDownton Castle Sandstone — 52.05°N, 2.70°WDownton Castle Sandstone — 52.47°N, 1.88°WLudlow Bone Bed — 51.96°N, 3.74°WLudlow Bone Bed — 52.00°N, 2.52°WLudlow Bone Bed — 52.03°N, 2.63°WLudlow Bone Bed — 52.54°N, 2.62°WLudlow Bone Bed — 52.47°N, 2.73°WLudlow Bone Bed — 52.27°N, 2.38°WLudlow Bone Bed — 52.43°N, 3.01°WTahula — 58.36°N, 22.86°ETahula — 58.36°N, 23.86°ETahula — 58.13°N, 24.00°ETahula — 58.31°N, 22.61°ETahula — 58.25°N, 22.49°ETahula — 58.00°N, 22.03°EPagegiai — 56.89°N, 21.20°EHimmiste — 59.07°N, 24.79°EHimmiste — 58.27°N, 21.96°ELower Whitcliffe — 52.37°N, 2.70°WElton — 52.55°N, 2.03°WElton — 52.37°N, 2.70°WCausemountain — 51.22°N, 2.22°WXitun — 25.49°N, 103.80°EKudjape — 58.27°N, 22.52°EKudjape — 58.00°N, 22.03°EHemse Beds — 57.28°N, 18.62°EVesiku Beds — 59.07°N, 24.79°EUduvere Beds — 59.07°N, 24.79°EUst'-Spokojnaya — 79.50°N, 96.00°EPod''emnaya — 79.50°N, 96.00°EHalla — 57.61°N, 18.80°ECape Phillips — 75.62°N, 94.47°WViita Beds — 59.07°N, 24.79°ELoo Beds — 59.07°N, 24.79°EPaadla — 58.25°N, 22.50°EPaadla — 58.12°N, 22.19°EXishancun — 25.49°N, 103.80°ELong Quarry — 52.00°N, 3.78°W

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The named rock units Thelodontiformes has been recovered from, largest first. Drawn where the rock is now, not where it formed. 76 further formations hold fewer occurrences each and are not listed. 38 occurrences have no formation on record, which is common for older literature.

Thelodontiformes and its relatives

Silurian

Where Thelodontiformes and its relatives were recorded in the Silurian.

Found in the same rock

807 taxa

The Paleobiology Database records 177 sites for Thelodontiformes, 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

64 references

Each of the 392 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. 52 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 Thelodontiformes

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

No 3D scan of Thelodontiformes 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 itThelodonti through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kiaer 1932