Chama exogyra

No picture of Chama exogyra was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Chama exogyra, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Also called
California reversed chamaPBDB
Sits inside
ChamaPBDB
Diet
suspension feederPBDB, for Chama
Life habit
epifaunalPBDB, for Chama
Motility
stationary, attached, epibiontPBDB, for Chama
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 2.4 million years on record.

The record covers at least 2.58 Mya to 129 ka. No occurrence read is dated outside 3.6 Mya to 11.7 ka.

Pliocene — about 6 of 47 occurrencesPliocenePleistocene — about 41 of 47 occurrencesPleistoceneHolocene — about 0 of 47 occurrences3.7–3.6 Mya — about 0.3 occurrences3.6–3.4 Mya — about 0.7 occurrences3.4–3.3 Mya — about 0.7 occurrences3.3–3.1 Mya — about 0.7 occurrences3.1–3.0 Mya — about 0.7 occurrences3.0–2.9 Mya — about 0.7 occurrences2.9–2.7 Mya — about 0.7 occurrences2.7–2.6 Mya — about 0.7 occurrences2.6–2.5 Mya — about 0.7 occurrences2.5–2.3 Mya — about 0.7 occurrences2.3–2.2 Mya — about 0.7 occurrences2.2–2.0 Mya — about 0.7 occurrences2.0–1.9 Mya — about 0.7 occurrences1.9–1.8 Mya — about 0.7 occurrences1.8–1.6 Mya — about 0.6 occurrences1.6–1.5 Mya — about 0.6 occurrences1.5–1.4 Mya — about 0.6 occurrences1.4–1.2 Mya — about 0.6 occurrences1.2–1.1 Mya — about 0.6 occurrences1.1–957 ka Mya — about 0.6 occurrences957 ka–820 ka Mya — about 0.6 occurrences820 ka–683 ka Mya — about 2 occurrences683 ka–547 ka Mya — about 3 occurrences547 ka–410 ka Mya — about 3 occurrences410 ka–273 ka Mya — about 3 occurrences273 ka–137 ka Mya — about 3 occurrences137 ka–0 Mya — about 21 occurrences2.58 Mya129 ka4.1 Mya0 Mya

47 occurrences of Chama exogyra 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

47 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

7 formations

Timms Point Silt — 33.73°N, 118.28°WPalos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.74°N, 118.28°WFernando — 34.05°N, 118.25°WFernando — 34.05°N, 118.25°WLomita Marl — 33.75°N, 118.30°WQuaternary terrace — 33.76°N, 118.35°WQuaternary terrace — 33.75°N, 118.34°WPico — 34.42°N, 118.70°WPico — 34.34°N, 118.51°WNiguel — 33.64°N, 117.89°W

Loading coastlines…

The named rock units Chama exogyra has been recovered from, largest first. Drawn where the rock is now, not where it formed. 27 occurrences have no formation on record, which is common for older literature.

Chama exogyra and its relatives

Pleistocene

Where Chama exogyra and its relatives were recorded in the Pleistocene.

Found in the same rock

999 taxa

The Paleobiology Database records 38 sites for Chama exogyra, 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

25 references

Each of the 47 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. 13 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 content0

No picture of Chama exogyra was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Chama exogyra, or no answer at all. This entry cannot say which.

No 3D scan of Chama exogyra 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.

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

Keep going

What may have been alongside itChama through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1837)