Mactridae

Mactridae, common name the trough shells or duck clams, is a family of saltwater clams, marine bivalve mollusks in the order Venerida.

Mactridae

Hans Hillewaert · 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
MactroideaPBDB
Diet
suspension feederPBDB
Life habit
infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 192 million years on record.

The record covers at least 192.9 Mya to 11.7 ka. No occurrence read is dated outside 199.5 Mya to 0 Mya.

Late Triassic — about 0 of 3223 occurrencesEarly Jurassic — about 1 of 3223 occurrencesEarly JurassicMiddle Jurassic — about 0 of 3223 occurrencesLate Jurassic — about 0 of 3223 occurrencesLate JurassicEarly Cretaceous — about 10 of 3223 occurrencesEarly CretaceousLate Cretaceous — about 836 of 3223 occurrencesLate CretaceousPaleocene — about 16 of 3223 occurrencesEocene — about 434 of 3223 occurrencesEoceneOligocene — about 187 of 3223 occurrencesMiocene — about 656 of 3223 occurrencesMiocenePliocene — about 364 of 3223 occurrencesPleistocene — about 661 of 3223 occurrences203–197 Mya — about 0.4 occurrences197–190 Mya — about 0.6 occurrences163–156 Mya — about 0.0 occurrences156–149 Mya — about 0.1 occurrences149–142 Mya — about 0.1 occurrences142–136 Mya — about 0.4 occurrences136–129 Mya — about 0.7 occurrences129–122 Mya — about 0.9 occurrences122–115 Mya — about 1 occurrence115–109 Mya — about 2 occurrences109–102 Mya — about 4 occurrences102–95 Mya — about 120 occurrences95–88 Mya — about 82 occurrences88–81 Mya — about 54 occurrences81–75 Mya — about 116 occurrences75–68 Mya — about 340 occurrences68–61 Mya — about 132 occurrences61–54 Mya — about 20 occurrences54–47 Mya — about 51 occurrences47–41 Mya — about 119 occurrences41–34 Mya — about 253 occurrences34–27 Mya — about 81 occurrences27–20 Mya — about 172 occurrences20–14 Mya — about 218 occurrences14–6.8 Mya — about 312 occurrences6.8–0 Mya — about 1142 occurrences192.9 Mya11.7 ka203 Mya0 Mya

3,223 occurrences of Mactridae on record, most of them in the Late Cretaceous. 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

3,223 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

445 formations

Woodbine — 31.95°N, 97.32°WWoodbine — 32.73°N, 97.22°WWoodbine — 32.77°N, 97.01°WWoodbine — 32.86°N, 97.06°WWoodbine — 32.99°N, 96.95°WWoodbine — 33.66°N, 96.91°WWoodbine — 33.71°N, 96.46°WWoodbine — 33.81°N, 96.83°WWoodbine — 33.76°N, 96.54°WWoodbine — 33.62°N, 96.61°WWoodbine — 33.66°N, 96.45°WWoodbine — 32.05°N, 97.23°WWoodbine — 32.35°N, 97.39°WWoodbine — 32.56°N, 97.14°WWoodbine — 32.65°N, 97.23°WWoodbine — 32.84°N, 97.08°WWoodbine — 33.05°N, 96.99°WWoodbine — 33.80°N, 96.85°WWoodbine — 33.73°N, 96.77°WWoodbine — 33.73°N, 96.59°WWoodbine — 33.71°N, 96.30°WProvidence — 31.91°N, 86.17°WProvidence — 31.97°N, 86.00°WProvidence — 31.86°N, 85.95°WProvidence — 31.92°N, 85.82°WProvidence — 31.89°N, 85.70°WProvidence — 31.95°N, 85.68°WProvidence — 31.92°N, 85.35°WProvidence — 31.94°N, 86.11°WProvidence — 31.84°N, 85.22°WProvidence — 31.78°N, 85.14°WProvidence — 31.75°N, 85.12°WProvidence — 31.80°N, 85.00°WProvidence — 31.89°N, 85.21°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°WTemblor — 35.95°N, 120.22°WTemblor — 35.95°N, 120.25°WTemblor — 36.34°N, 120.36°WTemblor — 35.50°N, 119.78°WTemblor — 35.88°N, 120.10°WTemblor — 35.42°N, 119.85°WTemblor — 35.40°N, 119.82°WTemblor — 35.46°N, 119.87°WTemblor — 35.46°N, 118.82°WCareaga Sandstone — 34.88°N, 120.51°WCareaga Sandstone — 34.83°N, 120.38°WCareaga Sandstone — 34.90°N, 120.32°WCareaga Sandstone — 34.74°N, 120.41°WCareaga Sandstone — 34.77°N, 120.48°WCorsicana Marl — 33.10°N, 95.99°WCorsicana Marl — 32.86°N, 96.21°WCorsicana Marl — 32.53°N, 96.27°WCorsicana Marl — 32.22°N, 96.31°WCorsicana Marl — 32.06°N, 96.47°WCorsicana Marl — 31.74°N, 96.61°WCorsicana Marl — 31.40°N, 96.73°WCorsicana Marl — 31.30°N, 96.75°WCorsicana Marl — 31.12°N, 96.82°WCorsicana Marl — 30.94°N, 96.95°WCorsicana Marl — 30.81°N, 97.10°WCorsicana Marl — 30.37°N, 97.46°WCorsicana Marl — 30.37°N, 97.45°WCorsicana Marl — 30.30°N, 97.46°WCorsicana Marl — 30.23°N, 97.52°WCorsicana Marl — 30.19°N, 97.57°WCorsicana Marl — 29.95°N, 97.71°WCorsicana Marl — 29.83°N, 97.84°WCorsicana Marl — 29.75°N, 97.88°WCorsicana Marl — 29.63°N, 98.04°WCorsicana Marl — 29.63°N, 98.54°WCorsicana Marl — 29.49°N, 98.19°WCorsicana Marl — 31.30°N, 96.90°WEscondido — 29.34°N, 98.89°WEscondido — 29.29°N, 98.97°WEscondido — 29.39°N, 99.02°WEscondido — 29.36°N, 99.05°WEscondido — 29.27°N, 99.05°WEscondido — 29.34°N, 99.16°WEscondido — 29.32°N, 99.27°WEscondido — 29.25°N, 99.28°WEscondido — 29.08°N, 99.96°WEscondido — 29.06°N, 100.06°WEscondido — 28.87°N, 100.16°WEscondido — 28.97°N, 100.24°WEscondido — 28.92°N, 100.26°WEscondido — 28.72°N, 100.47°WEscondido — 28.71°N, 100.71°WEscondido — 28.65°N, 100.43°WEscondido — 28.59°N, 100.40°WEscondido — 28.53°N, 100.30°WEscondido — 28.26°N, 100.27°WSan Emigdio — 35.06°N, 119.18°WSan Emigdio — 35.00°N, 119.29°WSan Emigdio — 34.91°N, 119.07°WSan Emigdio — 34.92°N, 119.18°WSan Emigdio — 35.00°N, 119.00°WMoodys Branch — 32.85°N, 90.41°WMoodys Branch — 32.95°N, 90.17°WMoodys Branch — 32.23°N, 92.15°WMoodys Branch — 32.01°N, 92.00°WMoodys Branch — 32.33°N, 90.15°WMoodys Branch — 31.88°N, 88.69°WMoodys Branch — 31.88°N, 88.32°WMoodys Branch — 31.61°N, 85.05°WMoodys Branch — 31.67°N, 92.89°WMoodys Branch — 35.01°N, 90.79°WMoodys Branch — 31.97°N, 88.53°WMoodys Branch — 32.17°N, 88.83°WMoodys Branch — 31.54°N, 88.06°WMoodys Branch — 32.98°N, 90.30°WEugene — 44.04°N, 123.08°WEugene — 44.06°N, 123.22°WEugene — 44.05°N, 123.09°WEugene — 44.18°N, 123.05°WEugene — 44.05°N, 123.02°WEugene — 45.21°N, 123.20°WEugene — 44.05°N, 123.03°WEugene — 44.98°N, 123.21°WEugene — 44.94°N, 123.03°WEugene — 44.77°N, 123.03°WNacatoch Sand — 32.10°N, 96.47°WNacatoch Sand — 32.59°N, 96.31°WNacatoch Sand — 33.14°N, 96.11°WNacatoch Sand — 32.05°N, 96.41°WLa Meseta — 64.23°S, 56.65°WLa Meseta — 64.24°S, 56.65°WLa Meseta — 64.26°S, 56.67°WPamlico — 32.08°N, 81.10°WPamlico — 38.69°N, 75.77°WPamlico — 34.78°N, 76.69°WPamlico — 34.04°N, 77.89°WPamlico — 35.00°N, 76.79°WPamlico — 35.25°N, 76.57°WPamlico — 35.14°N, 76.77°WPamlico — 35.70°N, 75.74°WPamlico — 35.50°N, 76.27°WPamlico — 32.69°N, 80.23°WPamlico — 32.64°N, 80.01°WPamlico — 32.78°N, 79.93°WPamlico — 35.59°N, 76.23°WPamlico — 36.33°N, 76.17°WPamlico — 33.38°N, 79.22°WPamlico — 33.56°N, 79.08°WYorktown — 37.23°N, 76.96°WYorktown — 35.51°N, 77.62°WYorktown — 35.38°N, 77.99°WYorktown — 37.23°N, 76.51°WYorktown — 34.90°N, 78.05°WYorktown — 37.21°N, 76.69°WYorktown — 37.02°N, 76.58°WYorktown — 37.06°N, 76.63°WYorktown — 37.15°N, 76.74°WYorktown — 35.15°N, 77.14°WCaloosahatchee — 25.95°N, 81.36°WCaloosahatchee — 26.89°N, 82.01°WCaloosahatchee — 26.70°N, 80.99°WCaloosahatchee — 26.75°N, 80.93°WCaloosahatchee — 26.80°N, 81.37°WCaloosahatchee — 27.77°N, 82.68°WCaloosahatchee — 27.34°N, 82.42°WCaloosahatchee — 26.96°N, 81.99°WCaloosahatchee — 26.96°N, 81.17°WJalama — 34.51°N, 120.42°WJalama — 34.51°N, 120.45°WJalama — 34.50°N, 120.34°WShoal River — 30.72°N, 86.12°WShoal River — 30.72°N, 86.04°WShoal River — 30.65°N, 86.04°WShoal River — 30.63°N, 86.17°WShoal River — 30.69°N, 86.65°WGatun — 9.35°N, 79.83°WGatun — 9.35°N, 79.82°WGatun — 9.28°N, 79.88°WSevern — 38.80°N, 77.00°WSevern — 38.89°N, 76.85°WSevern — 38.92°N, 76.85°WPrairie Bluff — 34.63°N, 88.84°WPrairie Bluff — 33.79°N, 88.97°WPrairie Bluff — 33.52°N, 88.84°WPrairie Bluff — 33.05°N, 88.56°WPrairie Bluff — 32.90°N, 88.46°WPrairie Bluff — 32.23°N, 87.50°WPrairie Bluff — 32.08°N, 87.02°WPrairie Bluff — 32.05°N, 86.99°WPrairie Bluff — 31.97°N, 86.72°WPrairie Bluff — 32.00°N, 86.48°WPrairie Bluff — 31.98°N, 86.00°WPrairie Bluff — 31.98°N, 85.92°WPrairie Bluff — 32.05°N, 86.78°WChico — 39.81°N, 121.66°WChico — 39.71°N, 121.94°WChico — 39.87°N, 121.71°WChico — 39.79°N, 121.63°WChico — 39.66°N, 121.58°WChico — 39.65°N, 121.54°WChico — 39.63°N, 121.59°WChico — 38.72°N, 121.21°WChoptank — 38.39°N, 76.57°WChoptank — 38.41°N, 76.48°WChoptank — 38.38°N, 76.38°WChoptank — 38.52°N, 76.51°WEtchegoin — 35.90°N, 120.00°WEtchegoin — 36.02°N, 120.04°WEtchegoin — 36.25°N, 120.31°WEtchegoin — 36.23°N, 120.31°WEtchegoin — 36.12°N, 120.41°WEtchegoin — 36.06°N, 120.45°WEtchegoin — 36.01°N, 120.31°WEtchegoin — 36.21°N, 120.67°WEtchegoin — 36.15°N, 120.64°WEtchegoin — 36.19°N, 120.64°WTachilni — 54.98°N, 162.85°WTachilni — 54.98°N, 164.65°WTachilni — 54.79°N, 163.36°WTachilni — 54.95°N, 163.05°WTachilni — 54.97°N, 163.17°WTachilni — 54.85°N, 163.41°W

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The named rock units Mactridae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 421 further formations hold fewer occurrences each and are not listed. 539 occurrences have no formation on record, which is common for older literature.

Mactridae and its relatives

Late Cretaceous

Where Mactridae and its relatives were recorded in the Late Cretaceous.

Found in the same rock

1,435 taxa

The Paleobiology Database records at least 1,427 sites for Mactridae, and this reads 240 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

506 references

Each of the 3,223 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. 494 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 Mactridae

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

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

Smithsonian Open Access was 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 itMactroidea through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lamarck 1809