Ktenoura

Ktenoura is a genus of trilobites from the Silurian of Europe.

Ktenoura

User:Captmondo · 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
CheiruridaePBDB
Diet
carnivorePBDB, for Cheiruridae
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB
Environment
marinePBDB, for Trilobita

Time the record covers

At least 15 million years on record.

The record covers at least 438.6 Mya to 423 Mya. No occurrence read is dated outside 440.5 Mya to 422.7 Mya.

Silurian — about 17 of 17 occurrencesSilurian441–440 Mya — about 0.1 occurrences440–440 Mya — about 0.3 occurrences440–439 Mya — about 0.3 occurrences439–438 Mya — about 0.3 occurrences438–438 Mya — about 0.3 occurrences438–437 Mya — about 0.3 occurrences437–437 Mya — about 0.3 occurrences437–436 Mya — about 0.3 occurrences436–435 Mya — about 0.3 occurrences435–435 Mya — about 0.3 occurrences435–434 Mya — about 0.3 occurrences434–433 Mya — about 0.3 occurrences433–433 Mya — about 0.3 occurrences431–430 Mya — about 0.3 occurrences430–430 Mya — about 0.8 occurrences430–429 Mya — about 0.8 occurrences429–428 Mya — about 0.8 occurrences428–428 Mya — about 0.8 occurrences428–427 Mya — about 0.8 occurrences427–427 Mya — about 0.7 occurrences427–426 Mya — about 0.4 occurrences426–425 Mya — about 0.4 occurrences425–425 Mya — about 1.0 occurrences425–424 Mya — about 2 occurrences424–423 Mya — about 2 occurrences423–423 Mya — about 2 occurrences423–422 Mya — about 0.8 occurrences438.6 Mya423 Mya441 Mya422.2 Mya

17 occurrences of Ktenoura 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

17 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

9 formations

Motol — 50.00°N, 17.78°EMotol — 49.95°N, 14.22°EMotol — 49.77°N, 13.25°EKopanina — 50.03°N, 14.32°EKopanina — 49.95°N, 12.93°EKopanina — 50.08°N, 14.47°EHughley Shales — 52.67°N, 2.00°WHughley Shales — 52.46°N, 2.85°WHamra Beds — 57.53°N, 18.43°EPagegiai — 56.88°N, 21.18°ERhydings — 52.67°N, 2.00°WBurgsvik Beds — 57.05°N, 18.27°EMuch Wenlock Limestone — 52.52°N, 2.10°WKirkby Moor — 54.34°N, 2.70°W

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

Ktenoura and its relatives

Silurian

Where Ktenoura and its relatives were recorded in the Silurian.

Found in the same rock

169 taxa

The Paleobiology Database records 16 sites for Ktenoura, 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

8 references

Each of the 17 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 Ktenoura

Credit
User:Captmondo
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Ktenoura was found in MorphoSource and Sketchfab.

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 itCheiruridae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lane 1971