Myida

Myida is an order of saltwater and freshwater clams, marine and freshwater bivalve molluscs in the subclass Heterodonta. The order includes such bivalves as soft-shell clams, geoducks and shipworms.

Myida

Uncredited · CC BY-SA 3.0 · 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
NeoheterodonteiPBDB
Diet
suspension feederPBDB
Life habit
infaunalPBDB
Motility
stationaryPBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 159 million years on record.

The record covers at least 180.4 Mya to 20.45 Mya. No occurrence read is dated outside 184.2 Mya to 15.98 Mya.

Early Jurassic — about 1 of 123 occurrencesMiddle Jurassic — about 1 of 123 occurrencesLate Jurassic — about 80 of 123 occurrencesLate JurassicEarly Cretaceous — about 0 of 123 occurrencesLate Cretaceous — about 37 of 123 occurrencesLate CretaceousPaleocene — about 0 of 123 occurrencesEocene — about 3 of 123 occurrencesEoceneOligocene — about 0 of 123 occurrencesMiocene — about 1 of 123 occurrences188–182 Mya — about 0.6 occurrences182–176 Mya — about 0.4 occurrences176–170 Mya — about 0.1 occurrences170–164 Mya — about 0.9 occurrences164–158 Mya — about 2 occurrences158–153 Mya — about 22 occurrences153–147 Mya — about 47 occurrences147–141 Mya — about 8 occurrences106–100 Mya — about 0.1 occurrences100–94 Mya — about 0.9 occurrences94–88 Mya — about 0.1 occurrences77–71 Mya — about 7 occurrences71–65 Mya — about 29 occurrences42–36 Mya — about 3 occurrences24–18 Mya — about 0.4 occurrences18–13 Mya — about 0.6 occurrences180.4 Mya20.45 Mya188 Mya13 Mya

123 occurrences of Myida on record, most of them in the Late Jurassic. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

123 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

Alcobaca — 39.32°N, 9.35°WAlcobaca — 38.42°N, 9.22°WAlcobaca — 39.55°N, 9.00°WAlcobaca — 39.52°N, 9.13°WSobral — 39.10°N, 9.27°WPrairie Bluff — 33.79°N, 88.97°WPrairie Bluff — 32.43°N, 88.04°WPrairie Bluff — 32.04°N, 86.79°WPrairie Bluff — 31.97°N, 86.72°WPrairie Bluff — 32.00°N, 86.48°WPrairie Bluff — 31.98°N, 86.00°WCorsicana Marl — 33.51°N, 94.67°WCorsicana Marl — 33.11°N, 95.98°WCorsicana Marl — 33.05°N, 96.06°WCorsicana Marl — 32.87°N, 96.20°WCorsicana Marl — 32.85°N, 96.21°WCorsicana Marl — 29.44°N, 98.56°WCorsicana Marl — 29.37°N, 98.78°WCorsicana Marl — 29.57°N, 97.96°WOwl Creek — 34.82°N, 88.88°WOwl Creek — 34.63°N, 88.84°WOwl Creek — 34.44°N, 88.95°WOwl Creek — 37.00°N, 89.85°WOwl Creek — 37.00°N, 89.87°WLourinhã — 39.10°N, 9.27°WChiwapa — 34.60°N, 88.95°WChiwapa — 34.46°N, 88.90°WSevern — 38.92°N, 76.85°WSevern — 38.95°N, 76.84°WSevern — 39.33°N, 76.03°WAlcobaça — 39.32°N, 9.35°WAlcobaça — 39.52°N, 9.13°WCowlitz — 46.40°N, 122.96°WProvidence — 31.84°N, 85.22°WProvidence — 31.87°N, 85.72°WCabacos — 39.60°N, 8.78°WKap Leslie — 70.48°N, 21.97°WTurmiel — 40.43°N, 1.42°WPortland Limestone — 50.52°N, 2.43°WMoonkinu — 11.80°S, 130.40°EKorallenoolith — 52.25°N, 9.60°EYeba — 29.30°N, 92.20°EChhasra — 23.10°N, 69.05°E

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The named rock units Myida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Myida and its relatives

Late Jurassic

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

Found in the same rock

843 taxa

The Paleobiology Database records 118 sites for Myida, 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

20 references

Each of the 123 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. 8 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 Myida

Credit
nobody named on the record
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Myida 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.

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 itNeoheterodontei through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Goldfuss 1820