Macoma

Macoma is a large genus of saltwater clams, marine bivalve molluscs in the family Tellinidae, the tellins.

Macoma

Jan Delsing · Public Domain · 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
TellinidaePBDB
Diet
deposit feederPBDB, for Tellinidae
Life habit
infaunalPBDB, for Tellinidae
Motility
facultatively mobilePBDB, for Tellinidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 55 million years on record.

The record covers at least 56 Mya to 11.7 ka. No occurrence read is dated outside 66 Mya to 0 Mya.

Late Cretaceous — about 0 of 1292 occurrencesPaleocene — about 4 of 1292 occurrencesPaleoceneEocene — about 83 of 1292 occurrencesEoceneOligocene — about 83 of 1292 occurrencesOligoceneMiocene — about 379 of 1292 occurrencesMiocenePliocene — about 150 of 1292 occurrencesPleistocene — about 524 of 1292 occurrences67–65 Mya — about 0.3 occurrences65–63 Mya — about 0.7 occurrences63–61 Mya — about 0.7 occurrences61–58 Mya — about 1 occurrence58–56 Mya — about 2 occurrences56–54 Mya — about 2 occurrences54–52 Mya — about 2 occurrences52–49 Mya — about 2 occurrences49–47 Mya — about 5 occurrences47–45 Mya — about 10 occurrences45–43 Mya — about 10 occurrences43–40 Mya — about 10 occurrences40–38 Mya — about 9 occurrences38–36 Mya — about 17 occurrences36–34 Mya — about 18 occurrences34–31 Mya — about 10 occurrences31–29 Mya — about 10 occurrences29–27 Mya — about 13 occurrences27–25 Mya — about 29 occurrences25–22 Mya — about 31 occurrences22–20 Mya — about 37 occurrences20–18 Mya — about 43 occurrences18–16 Mya — about 47 occurrences16–13 Mya — about 67 occurrences13–11 Mya — about 45 occurrences11–9.0 Mya — about 43 occurrences9.0–6.7 Mya — about 47 occurrences6.7–4.5 Mya — about 77 occurrences4.5–2.2 Mya — about 146 occurrences2.2–0 Mya — about 558 occurrences56 Mya11.7 ka67 Mya0 Mya

1,292 occurrences of Macoma 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

1,292 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

236 formations

Palos 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 — 33.71°N, 118.27°WPalos Verdes Sand — 33.66°N, 117.94°WVaqueros — 34.04°N, 120.04°WVaqueros — 33.54°N, 117.78°WVaqueros — 33.68°N, 117.76°WVaqueros — 33.65°N, 117.81°WVaqueros — 34.33°N, 118.83°WVaqueros — 34.00°N, 119.80°WVaqueros — 34.33°N, 119.03°WVaqueros — 34.07°N, 119.66°WVaqueros — 34.04°N, 118.88°WVaqueros — 34.37°N, 118.82°WVaqueros — 34.32°N, 119.08°WVaqueros — 34.35°N, 118.92°WVaqueros — 34.45°N, 118.92°WVaqueros — 34.57°N, 119.02°WVaqueros — 34.37°N, 119.33°WVaqueros — 34.44°N, 119.20°WVaqueros — 34.93°N, 119.05°WVaqueros — 34.98°N, 120.21°WVaqueros — 35.25°N, 120.06°WVaqueros — 35.82°N, 121.06°WVaqueros — 36.07°N, 121.28°WVaqueros — 36.18°N, 121.31°WPancho Rico — 36.24°N, 121.29°WPancho Rico — 36.18°N, 121.18°WPancho Rico — 35.89°N, 121.05°WPancho Rico — 35.90°N, 120.84°WPancho Rico — 35.99°N, 120.91°WPancho Rico — 36.00°N, 120.45°WPancho Rico — 35.74°N, 120.83°WPancho Rico — 36.19°N, 120.86°WPancho Rico — 36.03°N, 120.80°WPancho Rico — 35.94°N, 120.68°WPancho Rico — 35.97°N, 120.73°WPancho Rico — 35.89°N, 120.56°WPancho Rico — 36.06°N, 121.20°WEugene — 44.04°N, 123.08°WEugene — 44.07°N, 123.21°WEugene — 44.05°N, 123.09°WEugene — 44.16°N, 123.05°WEugene — 44.05°N, 123.02°WEugene — 44.98°N, 123.21°WNorwich Crag — 52.58°N, 1.38°ENorwich Crag — 52.12°N, 1.48°ETachilni — 54.98°N, 162.85°WTachilni — 54.98°N, 163.85°WTachilni — 54.79°N, 163.36°WTachilni — 54.95°N, 163.05°WTachilni — 54.97°N, 163.17°WTachilni — 54.85°N, 163.41°WTemblor — 35.95°N, 120.25°WTemblor — 35.95°N, 120.22°WTemblor — 36.34°N, 120.36°WTemblor — 36.37°N, 120.29°WTemblor — 35.88°N, 120.10°WTemblor — 35.38°N, 120.15°WTemblor — 35.52°N, 118.90°WTimms Point Silt — 33.73°N, 118.28°WClallam — 48.23°N, 124.14°WClallam — 48.20°N, 122.11°WClallam — 48.27°N, 122.25°WClallam — 48.26°N, 124.27°WPico — 34.37°N, 118.56°WPico — 34.43°N, 118.70°WPico — 34.34°N, 118.51°WPico — 34.35°N, 118.52°WNarrow Cape — 56.54°N, 154.34°WCareaga Sandstone — 34.84°N, 120.41°WCareaga Sandstone — 34.90°N, 120.32°WCareaga Sandstone — 34.86°N, 120.46°WCareaga Sandstone — 34.74°N, 120.41°WCareaga Sandstone — 34.82°N, 120.45°WSan Pedro Sand — 33.74°N, 118.28°WAstoria — 44.73°N, 124.06°WAstoria — 46.19°N, 123.83°WAstoria — 44.65°N, 124.06°WAstoria — 43.40°N, 124.28°WTowsley — 34.36°N, 118.51°WTowsley — 34.34°N, 118.54°WSisquoc — 34.81°N, 120.22°WSisquoc — 34.90°N, 120.31°WEtchegoin — 35.90°N, 120.00°WEtchegoin — 36.25°N, 120.31°WEtchegoin — 36.23°N, 120.31°WEtchegoin — 36.06°N, 120.45°WEtchegoin — 36.01°N, 120.31°WEtchegoin — 36.21°N, 120.67°WEtchegoin — 36.18°N, 120.64°WKubota — 37.50°N, 140.00°EKubota — 36.95°N, 140.41°EJacalitos — 36.08°N, 120.48°WJacalitos — 36.09°N, 120.41°WJacalitos — 36.04°N, 120.39°WCastilletes — 11.95°N, 71.32°WCastilletes — 11.93°N, 71.36°WIl'inskaya — 57.78°N, 158.58°EPamlico — 32.78°N, 79.90°WPamlico — 32.69°N, 80.23°WChamplain Clay — 45.75°N, 62.72°WChamplain Clay — 47.55°N, 52.67°WChamplain Clay — 45.18°N, 73.30°WChamplain Clay — 45.50°N, 73.58°WEtolonskaya — 58.42°N, 159.00°E

Loading coastlines…

The named rock units Macoma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 212 further formations hold fewer occurrences each and are not listed. 352 occurrences have no formation on record, which is common for older literature.

Macoma and its relatives

Pleistocene

Where Macoma and its relatives were recorded in the Pleistocene.

Found in the same rock

2,473 taxa

The Paleobiology Database records 616 sites for Macoma, 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

239 references

Each of the 1,292 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. 227 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 content2

Picture of Macoma

Credit
Jan Delsing
Licence
Public Domain
Commercial use
the licence allows it

3D model

Source
Sketchfab
Credit
Urielgc
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itTellinidae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Leach 1819)