Protocardia

Protocardia is an extinct genus of saltwater clams, marine bivalve mollusks in the subfamily Protocardiinae of the family Cardiidae, the cockles.

Protocardia

via iDigBio · CC0 · via iDigBio. 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
ProtocardiinaePBDB
Diet
suspension feederPBDB, for Cardiidae
Life habit
infaunalPBDB, for Cardiidae
Motility
facultatively mobilePBDB, for Cardiidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 224 million years on record.

The record covers at least 227.3 Mya to 2.58 Mya. No occurrence read is dated outside 237 Mya to 11.7 ka.

Middle Triassic — about 0 of 1305 occurrencesLate Triassic — about 85 of 1305 occurrencesLate TriassicEarly Jurassic — about 233 of 1305 occurrencesEarly JurassicMiddle Jurassic — about 311 of 1305 occurrencesLate Jurassic — about 314 of 1305 occurrencesEarly Cretaceous — about 91 of 1305 occurrencesEarly CretaceousLate Cretaceous — about 254 of 1305 occurrencesLate CretaceousPaleocene — about 8 of 1305 occurrencesEocene — about 3 of 1305 occurrencesEoceneOligocene — about 0 of 1305 occurrencesMiocene — about 1 of 1305 occurrencesPliocene — about 4 of 1305 occurrencesPleistocene — about 1 of 1305 occurrences242–234 Mya — about 1.0 occurrences234–226 Mya — about 3 occurrences226–218 Mya — about 5 occurrences218–210 Mya — about 5 occurrences210–201 Mya — about 70 occurrences201–193 Mya — about 35 occurrences193–185 Mya — about 70 occurrences185–177 Mya — about 125 occurrences177–169 Mya — about 38 occurrences169–161 Mya — about 282 occurrences161–153 Mya — about 133 occurrences153–145 Mya — about 159 occurrences145–137 Mya — about 33 occurrences137–129 Mya — about 6 occurrences129–121 Mya — about 5 occurrences121–113 Mya — about 20 occurrences113–105 Mya — about 27 occurrences105–97 Mya — about 45 occurrences97–89 Mya — about 43 occurrences89–81 Mya — about 20 occurrences81–73 Mya — about 35 occurrences73–64 Mya — about 131 occurrences64–56 Mya — about 6 occurrences56–48 Mya — about 1.0 occurrences48–40 Mya — about 0.0 occurrences40–32 Mya — about 2 occurrences16–8.1 Mya — about 1 occurrence8.1–0 Mya — about 5 occurrences227.3 Mya2.58 Mya242 Mya0 Mya

1,305 occurrences of Protocardia on record, most of them in the Late Jurassic. 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

1,305 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

250 formations

Tataouine — 33.00°N, 10.47°ETataouine — 32.00°N, 10.47°EAlcobaca — 39.32°N, 9.35°WAlcobaca — 38.42°N, 9.22°WAlcobaca — 39.55°N, 9.00°WAlcobaca — 39.52°N, 9.13°WChari — 23.50°N, 70.50°EKap Leslie — 70.48°N, 21.97°WDhruma — 25.53°N, 45.00°EDhruma — 26.92°N, 44.00°EDhruma — 25.17°N, 45.50°EDhruma — 25.37°N, 45.00°EDhruma — 25.78°N, 45.25°EDhruma — 25.05°N, 45.67°EDhruma — 23.97°N, 46.00°EDhruma — 23.08°N, 46.33°EDhruma — 22.83°N, 46.83°EDhruma — 21.88°N, 45.83°EDhruma — 25.37°N, 45.50°EDhruma — 25.70°N, 45.67°EDhruma — 25.97°N, 45.00°EDhruma — 26.20°N, 44.83°EDhruma — 26.33°N, 44.83°ETurmiel Fm — 40.40°N, 1.50°WPrairie Bluff — 34.51°N, 88.92°WPrairie Bluff — 34.25°N, 88.97°WPrairie Bluff — 33.79°N, 88.91°WPrairie Bluff — 33.50°N, 88.81°WPrairie Bluff — 33.38°N, 88.74°WPrairie Bluff — 32.91°N, 88.51°WPrairie Bluff — 34.48°N, 88.98°WPrairie Bluff — 33.73°N, 88.90°WPrairie Bluff — 32.67°N, 88.29°WPrairie Bluff — 32.74°N, 88.36°WPrairie Bluff — 32.61°N, 88.16°WPrairie Bluff — 32.43°N, 88.04°WPrairie Bluff — 32.23°N, 87.50°WPrairie Bluff — 32.14°N, 87.42°WPrairie Bluff — 32.07°N, 87.33°WPrairie Bluff — 32.08°N, 87.03°WPrairie Bluff — 31.97°N, 86.72°WPrairie Bluff — 31.98°N, 86.00°WPrairie Bluff — 31.99°N, 85.92°WPrairie Bluff — 32.05°N, 86.78°WSobral — 39.10°N, 9.27°WSobral — 38.97°N, 9.10°WKossen — 47.78°N, 13.80°EKossen — 47.66°N, 12.45°EKossen — 47.57°N, 11.77°EKossen — 47.75°N, 14.73°EKossen — 47.55°N, 12.17°EKossen — 47.58°N, 12.57°EKossen — 47.71°N, 13.20°EKiowa — 37.32°N, 99.75°WKiowa — 37.22°N, 99.90°WKiowa — 37.44°N, 99.18°WKiowa — 38.53°N, 97.90°WKiowa — 38.73°N, 97.53°WKiowa — 38.75°N, 97.75°WProvidence — 31.97°N, 86.00°WProvidence — 31.89°N, 85.70°WProvidence — 31.95°N, 85.68°WProvidence — 31.84°N, 85.22°WProvidence — 31.75°N, 85.12°WProvidence — 31.76°N, 85.13°WProvidence — 31.80°N, 85.00°WProvidence — 31.89°N, 85.21°WWhite Limestone — 51.75°N, 1.17°WWhite Limestone — 51.80°N, 1.88°WTrigonia clavellata — 50.80°N, 2.28°WTrigonia clavellata — 50.60°N, 2.45°WKoessen — 47.00°N, 13.00°EKoessen — 47.71°N, 13.20°EKoessen — 47.67°N, 12.70°ECalcaires marno-crayeux superieurs — 49.83°N, 4.20°ECalcaires marno-crayeux superieurs — 49.88°N, 4.09°ECalcaires marno-crayeux superieurs — 49.85°N, 4.16°ECalcaires marno-crayeux superieurs — 49.65°N, 4.64°ECalcaires marno-crayeux superieurs — 49.60°N, 4.80°ECleveland Ironstone — 54.45°N, 0.57°WNayband — 32.38°N, 57.41°ENayband — 32.50°N, 57.35°ENayband — 33.00°N, 57.00°ENayband — 32.38°N, 57.50°EKaladongar — 23.50°N, 70.50°EWestbury — 51.17°N, 3.27°WWestbury — 51.24°N, 2.34°WWestbury — 51.55°N, 2.40°WWestbury — 54.26°N, 1.28°WBearpaw — 49.36°N, 110.42°WBearpaw — 49.88°N, 110.29°WBearpaw — 49.45°N, 112.83°WBearpaw — 50.67°N, 107.73°WBearpaw — 49.47°N, 109.38°WCalcaires marno-crayeux inferieurs — 49.83°N, 4.20°ECalcaires marno-crayeux inferieurs — 49.87°N, 4.06°ECalcaires marno-crayeux inferieurs — 49.88°N, 4.04°ECalcaires marno-crayeux inferieurs — 49.60°N, 4.80°EWhitby Mudstone — 54.45°N, 0.57°WTurmiel — 40.43°N, 1.42°WTurmiel — 40.40°N, 1.50°WGoradongar — 23.50°N, 70.50°E

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The named rock units Protocardia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 226 further formations hold fewer occurrences each and are not listed. 282 occurrences have no formation on record, which is common for older literature.

Protocardia and its relatives

Late Jurassic

Where Protocardia and its relatives were recorded in the Late Jurassic.

Found in the same rock

1,343 taxa

The Paleobiology Database records 984 sites for Protocardia, 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

233 references

Each of the 1,305 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. 221 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 Protocardia

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

3D model

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

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 itProtocardiinae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Beyrich 1845)