Praecardium

Praecardium

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
PraecardiidaePBDB
Diet
suspension feederPBDB, for Pteriomorphia
Life habit
epifaunalPBDB, for Pteriomorphia
Motility
facultatively mobilePBDB, for Pteriomorphia
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 47 million years on record.

The record covers at least 431.2 Mya to 383.4 Mya. No occurrence read is dated outside 433.5 Mya to 372.15 Mya.

Silurian — about 23 of 38 occurrencesSilurianDevonian — about 15 of 38 occurrencesDevonian435–433 Mya — about 0.5 occurrences433–430 Mya — about 1 occurrence430–428 Mya — about 0.7 occurrences428–426 Mya — about 0.7 occurrences426–424 Mya — about 1 occurrence424–422 Mya — about 6 occurrences422–420 Mya — about 12 occurrences420–418 Mya — about 1 occurrence418–416 Mya — about 0.1 occurrences416–413 Mya — about 0.1 occurrences413–411 Mya — about 0.1 occurrences411–409 Mya — about 0.5 occurrences409–407 Mya — about 0.7 occurrences407–405 Mya — about 0.7 occurrences405–403 Mya — about 0.7 occurrences403–401 Mya — about 0.7 occurrences401–399 Mya — about 0.5 occurrences399–396 Mya — about 0.3 occurrences396–394 Mya — about 0.3 occurrences394–392 Mya — about 0.2 occurrences392–390 Mya — about 0.1 occurrences390–388 Mya — about 0.1 occurrences388–386 Mya — about 3 occurrences386–384 Mya — about 3 occurrences384–382 Mya — about 4 occurrences382–379 Mya — about 0.1 occurrences379–377 Mya — about 0.1 occurrences377–375 Mya — about 0.1 occurrences375–373 Mya — about 0.1 occurrences373–371 Mya — about 0.1 occurrences431.2 Mya383.4 Mya435 Mya371 Mya

38 occurrences of Praecardium 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

38 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

14 formations

Marcellus — 42.99°N, 76.04°WPozary — 49.93°N, 14.18°EPozary — 50.08°N, 14.47°EPozary — 50.00°N, 14.35°EFluminimaggiore — 39.32°N, 8.65°EHuixingshao — 28.55°N, 108.85°EMiaokao — 25.48°N, 103.78°EPimenteira — 7.00°S, 42.00°WHunsrueck Slate — 49.85°N, 7.32°EBrilon Massenkalk — 51.45°N, 8.62°EDisappointment Bay — 74.31°N, 98.58°WJaani — 58.62°N, 22.90°EPridoli — 50.02°N, 14.38°ETiaomajian — 27.75°N, 111.75°EHunsrück Slate — 49.89°N, 7.47°ERed Hill Beds — 40.05°N, 116.04°W

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The named rock units Praecardium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 occurrences have no formation on record, which is common for older literature.

Praecardium and its relatives

Silurian

Where Praecardium and its relatives were recorded in the Silurian.

Found in the same rock

334 taxa

The Paleobiology Database records 32 sites for Praecardium, 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

18 references

Each of the 38 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. 6 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 Praecardium

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

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Barrande 1881