Dallocardia quadragenarium

No picture of Dallocardia quadragenarium was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Dallocardia quadragenarium, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Also called
spiny cocklePBDB
Sits inside
DallocardiaPBDB
Diet
suspension feederPBDB, for Dallocardia
Life habit
infaunalPBDB, for Dallocardia
Motility
facultatively mobilePBDB, for Dallocardia
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 33 million years on record.

The record covers at least 33.9 Mya to 129 ka. No occurrence read is dated outside 37.71 Mya to 0 Mya.

Eocene — about 1 of 105 occurrencesEoceneOligocene — about 0 of 105 occurrencesMiocene — about 8 of 105 occurrencesMiocenePliocene — about 43 of 105 occurrencesPleistocene — about 54 of 105 occurrences38–37 Mya — about 0.1 occurrences37–36 Mya — about 0.3 occurrences36–35 Mya — about 0.3 occurrences35–33 Mya — about 0.2 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–19 Mya — about 0.1 occurrences19–18 Mya — about 0.1 occurrences18–17 Mya — about 0.1 occurrences17–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–13 Mya — about 0.1 occurrences13–12 Mya — about 0.1 occurrences12–10 Mya — about 0.6 occurrences10–9.0 Mya — about 0.6 occurrences9.0–7.7 Mya — about 0.6 occurrences7.7–6.4 Mya — about 2 occurrences6.4–5.1 Mya — about 4 occurrences5.1–3.8 Mya — about 9 occurrences3.8–2.6 Mya — about 32 occurrences2.6–1.3 Mya — about 10 occurrences1.3–0 Mya — about 43 occurrences33.9 Mya129 ka38.5 Mya0 Mya

105 occurrences of Dallocardia quadragenarium 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

105 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

19 formations

Pico — 33.94°N, 117.89°WPico — 34.36°N, 118.56°WPico — 34.43°N, 118.70°WPico — 34.34°N, 118.51°WPico — 34.35°N, 118.52°WPalos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.74°N, 118.28°WPalos Verdes Sand — 33.66°N, 117.94°WTowsley — 34.36°N, 118.51°WPancho Rico — 35.90°N, 120.84°WPancho Rico — 36.00°N, 120.45°WPancho Rico — 36.03°N, 120.86°WPancho Rico — 35.99°N, 120.79°WPancho Rico — 35.97°N, 120.73°WPancho Rico — 35.89°N, 120.56°WPancho Rico — 36.13°N, 120.73°WLomita Marl — 33.75°N, 118.30°WLomita Marl — 33.74°N, 118.29°WAnchor — 34.04°N, 118.40°WSan Pedro — 33.93°N, 117.95°WSan Pedro — 33.80°N, 118.16°WFernando — 34.05°N, 118.25°WTimms Point Silt — 33.73°N, 118.28°WCareaga Sandstone — 34.84°N, 120.41°WCareaga Sandstone — 34.90°N, 120.32°WSan Pedro Sand — 33.74°N, 118.28°WUnnamed — 33.24°N, 119.47°WSan Joaquin — 35.90°N, 120.00°WPalos Verdes — 33.63°N, 117.90°WTepetate — 31.07°N, 116.20°WEtchegoin — 36.02°N, 120.27°WQuaternary terrace — 33.71°N, 118.29°WMedill — 34.04°N, 118.40°WSan Diego — 32.54°N, 117.11°W

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The named rock units Dallocardia quadragenarium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 occurrences have no formation on record, which is common for older literature.

Dallocardia quadragenarium and its relatives

Pleistocene

Where Dallocardia quadragenarium and its relatives were recorded in the Pleistocene.

Found in the same rock

1,309 taxa

The Paleobiology Database records 94 sites for Dallocardia quadragenarium, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

41 references

Each of the 105 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. 29 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 Dallocardia quadragenarium was found. Wikidata and iDigBio were searched and had none.

Wikipedia and 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 Dallocardia quadragenarium, or no answer at all. This entry cannot say which.

No 3D scan of Dallocardia quadragenarium 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 itDallocardia through timeFormations of the PleistoceneThe world it lived on

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