Kirkidium

Kirkidium

via iDigBio · CC0 · via iDigBio. 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
PentameridaePBDB
Diet
suspension feederPBDB, for Pentamerida
Life habit
epifaunalPBDB, for Pentamerida
Motility
stationaryPBDB, for Pentamerida
Vision
blindPBDB, for Rhynchonellata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 7.9 million years on record.

The record covers at least 430.6 Mya to 422.7 Mya. No occurrence read is dated outside 443.1 Mya to 419.62 Mya.

Ordovician — about 0 of 54 occurrencesSilurian — about 54 of 54 occurrencesSilurianDevonian — about 0 of 54 occurrences444–443 Mya — about 0.0 occurrences443–442 Mya — about 0.0 occurrences442–441 Mya — about 0.0 occurrences441–440 Mya — about 0.0 occurrences440–440 Mya — about 0.0 occurrences440–439 Mya — about 0.2 occurrences439–438 Mya — about 0.2 occurrences438–437 Mya — about 0.2 occurrences437–436 Mya — about 0.2 occurrences436–435 Mya — about 0.2 occurrences435–435 Mya — about 0.2 occurrences435–434 Mya — about 0.2 occurrences434–433 Mya — about 0.2 occurrences433–432 Mya — about 2 occurrences432–431 Mya — about 2 occurrences431–431 Mya — about 2 occurrences431–430 Mya — about 2 occurrences430–429 Mya — about 3 occurrences429–428 Mya — about 3 occurrences428–427 Mya — about 3 occurrences427–426 Mya — about 4 occurrences426–426 Mya — about 8 occurrences426–425 Mya — about 7 occurrences425–424 Mya — about 5 occurrences424–423 Mya — about 5 occurrences423–422 Mya — about 3 occurrences422–422 Mya — about 1.0 occurrences422–421 Mya — about 1.0 occurrences421–420 Mya — about 1.0 occurrences420–419 Mya — about 0.4 occurrences430.6 Mya422.7 Mya443.6 Mya419.1 Mya

54 occurrences of Kirkidium 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

54 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

22 formations

Read Bay — 74.84°N, 93.51°WRead Bay — 74.68°N, 94.16°WRead Bay — 74.70°N, 94.82°WHemse Beds — 57.23°N, 18.37°EHemse Beds — 57.28°N, 18.32°EHemse Beds — 57.37°N, 18.69°EHemse Beds — 57.31°N, 18.37°ELouisville — 40.58°N, 86.67°WUpper Bringewood — 52.00°N, 3.00°WMarvin — 82.70°N, 76.20°WMarvin — 82.70°N, 76.03°WDubysa — 55.08°N, 25.42°EDubysa — 54.65°N, 23.03°ERacine — 42.00°N, 88.00°WRacine — 42.72°N, 87.77°WSlite Beds — 57.72°N, 18.80°EKopanina — 49.96°N, 14.18°EPozary — 49.93°N, 14.13°EMolong Limestone — 33.10°S, 148.87°EBurrawong Limestone — 33.28°S, 149.10°EBateaobao — 42.00°N, 110.00°ESargent Bay — 45.13°N, 72.25°WLake Aymler — 45.65°N, 71.62°WHeceta — 55.78°N, 133.17°WKuiu Limestone — 56.89°N, 134.35°WGascons — 47.91°N, 66.52°WSlite — 57.31°N, 18.07°EHemse — 57.42°N, 18.86°EHidden Valley — 36.41°N, 116.64°WRoberts Mountains — 39.87°N, 116.33°W

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The named rock units Kirkidium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Kirkidium and its relatives

Silurian

Where Kirkidium and its relatives were recorded in the Silurian.

Found in the same rock

519 taxa

The Paleobiology Database records 50 sites for Kirkidium, 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

29 references

Each of the 54 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. 17 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 Kirkidium

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPentameridae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Amsden et al. 1967