Chionopsis gnidia

Chionopsis gnidia, is a species of medium-sized saltwater clam, a marine bivalve mollusc in the family Veneridae, the venus clams. It was originally described in 1829 by W. J. Borderip and G. B. Sowerby as Venus gnidia. It can be found throughout the coasts of the United States to Peru.

Chionopsis gnidia

Hectonichus · 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
ChionopsisPBDB
Diet
suspension feederPBDB, for Chionopsis
Life habit
infaunalPBDB, for Chionopsis
Motility
facultatively mobilePBDB, for Chionopsis
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 5.2 million years on record.

The record covers at least 5.333 Mya to 129 ka. No occurrence read is dated outside 7.246 Mya to 11.7 ka.

Miocene — about 1 of 28 occurrencesMiocenePliocene — about 0 of 28 occurrencesPleistocene — about 27 of 28 occurrencesPleistoceneHolocene — about 0 of 28 occurrences7.5–7.2 Mya — about 0.0 occurrences7.2–7.0 Mya — about 0.1 occurrences7.0–6.7 Mya — about 0.1 occurrences6.7–6.5 Mya — about 0.1 occurrences6.5–6.2 Mya — about 0.1 occurrences6.2–5.9 Mya — about 0.1 occurrences5.9–5.7 Mya — about 0.1 occurrences5.7–5.4 Mya — about 0.1 occurrences5.4–5.2 Mya — about 0.0 occurrences2.6–2.3 Mya — about 0.2 occurrences2.3–2.1 Mya — about 0.2 occurrences2.1–1.8 Mya — about 0.2 occurrences1.8–1.5 Mya — about 0.2 occurrences1.5–1.3 Mya — about 0.2 occurrences1.3–1.0 Mya — about 0.2 occurrences1.0–775 ka Mya — about 0.2 occurrences775 ka–516 ka Mya — about 0.5 occurrences516 ka–258 ka Mya — about 0.5 occurrences258 ka–0 Mya — about 25 occurrences5.333 Mya129 ka7.7 Mya0 Mya

28 occurrences of Chionopsis gnidia on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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

28 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

3 formations

Palos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.74°N, 118.28°WPalos Verdes Sand — 33.78°N, 118.30°WPalos Verdes — 33.63°N, 117.90°WPancho Rico — 35.89°N, 121.05°W

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The named rock units Chionopsis gnidia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 occurrences have no formation on record, which is common for older literature.

Chionopsis gnidia and its relatives

Pleistocene

Where Chionopsis gnidia and its relatives were recorded in the Pleistocene.

Found in the same rock

778 taxa

The Paleobiology Database records 18 sites for Chionopsis gnidia, 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

14 references

Each of the 28 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. 2 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 Chionopsis gnidia

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

No 3D scan of Chionopsis gnidia 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 itChionopsis through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Broderip and Sowerby I 1829)