Claraia

Searched as Claraia griesbachi concentrica. The Paleobiology Database treats Claraia as the accepted name.

Claraia is an extinct genus of scallop-like bivalve molluscs that lived from the Capitanian stage of the Middle Permian to the Anisian stage of the Middle Triassic, 266-237 million years ago. Fossils have been found worldwide in North America, Europe, Asia, Africa, and Australia. These are common fossils subsequent to the Permian-Triassic boundary, suggesting that the genus experienced rapid diversification during and after the Permian–Triassic extinction event, around 251.9 million years ago, making it a disaster taxon.

Claraia

This Photo was taken by Wolfgang Moroder . Feel free to use my photos, but please mention me as the author and send m… · 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
ClaraiiniPBDB
Diet
suspension feederPBDB, for Pectinida
Life habit
epifaunalPBDB, for Pectinida
Motility
stationaryPBDB, for Pectinida
Vision
blindPBDB, for Bivalvia
Environment
marinePBDB, for Pectinida

Time the record covers

At most 1.2 million years on record.

The one occurrence read is dated to somewhere between 251.902 Mya and 250.8 Mya, which is a dating window rather than a span.

Permian — about 0 of 1 occurrenceEarly Triassic — about 1 of 1 occurrenceEarly Triassic252–252 Mya — about 0.1 occurrences252–252 Mya — about 0.1 occurrences252–252 Mya — about 0.1 occurrences252–252 Mya — about 0.1 occurrences252–252 Mya — about 0.1 occurrences252–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences252.4 Mya250.3 Mya

1 occurrence of Claraia on record, most of them in the Early Triassic. 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

1 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

1 formation

Gua Musang — 4.92°N, 102.00°E

Loading coastlines…

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

Claraia and its relatives

Early Triassic

Where Claraia and its relatives were recorded in the Early Triassic.

Found in the same rock

590 taxa

The Paleobiology Database records 791 sites for Claraia, and this reads 240 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

1 reference

Each of the 1 occurrence 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Claraia

Credit
This Photo was taken by Wolfgang Moroder . Feel free to use my photos, but please mention me as the author and send m…
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

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

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 itClaraiini through timeFormations of the Early TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Bittner 1901)