Trachycardium (Mexicardia)

Trachycardium (Mexicardia)

Dr Harry Wilman · CC0 · via GBIF. 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
TrachycardiumPBDB
Diet
suspension feederPBDB
Life habit
infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 27 million years on record.

The record covers at least 27.3 Mya to 11.7 ka. No occurrence read is dated outside 48.07 Mya to 0 Mya.

Eocene — about 1 of 99 occurrencesEoceneOligocene — about 0 of 99 occurrencesOligoceneMiocene — about 40 of 99 occurrencesMiocenePliocene — about 7 of 99 occurrencesPleistocene — about 49 of 99 occurrences49–47 Mya — about 0.0 occurrences47–46 Mya — about 0.1 occurrences46–44 Mya — about 0.1 occurrences44–42 Mya — about 0.1 occurrences42–41 Mya — about 0.1 occurrences41–39 Mya — about 0.1 occurrences39–38 Mya — about 0.1 occurrences38–36 Mya — about 0.1 occurrences36–34 Mya — about 0.1 occurrences34–33 Mya — about 0.1 occurrences33–31 Mya — about 0.1 occurrences31–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–26 Mya — about 0.0 occurrences13–11 Mya — about 2 occurrences11–9.8 Mya — about 14 occurrences9.8–8.2 Mya — about 14 occurrences8.2–6.5 Mya — about 9 occurrences6.5–4.9 Mya — about 2 occurrences4.9–3.3 Mya — about 4 occurrences3.3–1.6 Mya — about 7 occurrences1.6–0 Mya — about 46 occurrences27.3 Mya11.7 ka49 Mya0 Mya

99 occurrences of Trachycardium (Mexicardia) 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

99 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

21 formations

Gatun — 9.35°N, 79.81°WGatun — 9.35°N, 79.82°WGatun — 9.28°N, 79.91°WCercado — 19.47°N, 71.08°WCercado — 19.58°N, 71.04°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 — 33.76°N, 118.28°WEstratos de Caldera — 27.05°S, 70.77°WEstratos de Caldera — 27.15°S, 70.93°WEstratos de Caldera — 27.45°S, 70.85°WEstratos de Caldera — 27.49°S, 70.83°WEstratos de Caldera — 27.67°S, 70.86°WEstratos de Caldera — 27.70°S, 70.97°WPampa del Palo terrace — 17.58°S, 71.17°WTuira — 8.19°N, 77.63°WMulege — 27.05°N, 111.97°WPalos Verdes — 33.63°N, 117.90°WJama — 0.18°S, 80.32°WCharco Azul — 8.55°N, 83.00°WArmuelles — 8.03°N, 82.92°WPenita — 8.23°N, 82.97°WSan Pedro — 33.85°N, 118.06°WGurabo — 19.58°N, 71.05°WSan Juan Terrace — 15.33°S, 75.17°WLa Portada — 23.40°S, 70.53°WTubará — 10.75°N, 75.00°WCaujarao — 11.46°N, 69.32°WPacific Muck — 8.93°N, 79.56°WSan Pedro Sand — 33.71°N, 118.27°WEstratos de Agua Amarga — 27.05°S, 70.72°W

Loading coastlines…

The named rock units Trachycardium (Mexicardia) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 22 occurrences have no formation on record, which is common for older literature.

Trachycardium (Mexicardia) and its relatives

Pleistocene

Where Trachycardium (Mexicardia) and its relatives were recorded in the Pleistocene.

Found in the same rock

1,633 taxa

The Paleobiology Database records 58 sites for Trachycardium (Mexicardia), 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

38 references

Each of the 99 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. 26 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 Trachycardium (Mexicardia)

Source
GBIF
Credit
Dr Harry Wilman
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Trachycardium (Mexicardia) 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 itTrachycardium through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Stewart 1930)