Megadesmidae

No picture of Megadesmidae was found. Wikidata and iDigBio were searched and had none. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Megadesmidae, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
EdmondioideaPBDB
Diet
suspension feederPBDB, for Pholadomyida
Life habit
infaunalPBDB, for Pholadomyida
Motility
facultatively mobilePBDB, for Pholadomyida
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 295 million years on record.

The record covers at least 318.7 Mya to 23.04 Mya. No occurrence read is dated outside 346.7 Mya to 5.333 Mya.

Carboniferous — about 15 of 316 occurrencesCarboniferousPermian — about 293 of 316 occurrencesPermianEarly Triassic — about 6 of 316 occurrencesMiddle Triassic — about 1 of 316 occurrencesLate Triassic — about 0 of 316 occurrencesEarly Jurassic — about 0 of 316 occurrencesMiddle Jurassic — about 0 of 316 occurrencesLate Jurassic — about 0 of 316 occurrencesEarly Cretaceous — about 0 of 316 occurrencesLate Cretaceous — about 0 of 316 occurrencesPaleocene — about 0 of 316 occurrencesEocene — about 0 of 316 occurrencesOligocene — about 0 of 316 occurrencesMiocene — about 1 of 316 occurrencesPliocene — about 0 of 316 occurrencesPleistocene — about 0 of 316 occurrences354–342 Mya — about 0.2 occurrences342–330 Mya — about 0.5 occurrences330–318 Mya — about 3 occurrences318–306 Mya — about 7 occurrences306–295 Mya — about 13 occurrences295–283 Mya — about 78 occurrences283–271 Mya — about 21 occurrences271–259 Mya — about 108 occurrences259–247 Mya — about 83 occurrences247–236 Mya — about 3 occurrences24–12 Mya — about 0.6 occurrences12–0 Mya — about 0.4 occurrences318.7 Mya23.04 Mya354 Mya0 Mya

316 occurrences of Megadesmidae on record, most of them in the Permian. 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

316 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

78 formations

Corumbataí — 22.26°S, 47.58°WCorumbataí — 22.41°S, 47.62°WCorumbataí — 22.25°S, 47.58°WCorumbataí — 22.38°S, 47.65°WCorumbataí — 22.29°S, 47.48°WCorumbataí — 22.52°S, 47.59°WCorumbataí — 16.96°S, 53.52°WCorumbataí — 17.23°S, 53.26°WGerringong — 34.78°S, 150.82°EGerringong — 34.42°S, 150.91°EGerringong — 34.50°S, 150.85°EBlenheim — 20.93°S, 148.12°EBlenheim — 21.47°S, 148.52°EBlenheim — 20.74°S, 147.95°EBlenheim — 20.95°S, 148.13°EBlenheim — 21.05°S, 148.21°EBlenheim — 21.05°S, 148.21°EBlenheim — 20.61°S, 147.85°EBlenheim — 20.55°S, 147.85°EBlenheim — 20.60°S, 147.76°EBlenheim — 20.83°S, 147.70°EFerntree — 42.88°S, 147.37°EFerntree — 43.00°S, 147.33°EFerntree — 42.76°S, 147.09°EFerntree — 42.92°S, 147.26°EFerntree — 42.78°S, 147.37°EFerntree — 42.78°S, 147.21°EWasp Head — 35.67°S, 150.31°EAllandale — 32.65°S, 151.50°EWandrawandian — 34.88°S, 150.46°EWandrawandian — 34.87°S, 150.40°EWandrawandian — 34.83°S, 150.38°ETiverton — 20.93°S, 148.14°ETiverton — 21.49°S, 148.55°ETiverton — 21.44°S, 148.54°EFlat Top — 24.25°S, 149.80°EFlat Top — 24.85°S, 150.12°EFlat Top — 24.76°S, 150.13°EFlat Top — 24.68°S, 150.15°EFlat Top — 24.16°S, 149.88°EVostochnotaimyrskaya — 74.89°N, 107.99°EVostochnotaimyrskaya — 74.60°N, 106.30°ELekvorkuta — 67.68°N, 64.18°ELekvorkuta — 66.01°N, 57.54°ELekvorkuta — 68.80°N, 65.00°ESenja — 29.48°N, 82.90°ESenja — 29.45°N, 83.00°EYagon Siltstone — 32.40°S, 152.27°EYagon Siltstone — 32.42°S, 152.22°EAgglomeratic Slate — 34.10°N, 74.88°EAbels Bay — 43.18°S, 147.24°ETalchir — 32.68°N, 72.97°ELizzie Creek — 21.20°S, 148.32°ELizzie Creek — 22.03°S, 149.18°EWaterford — 33.22°S, 22.03°EMangarewa — 45.80°S, 167.96°EBurnett — 24.95°S, 151.35°EBurnett — 24.99°S, 151.34°EChumik — 33.00°N, 77.39°EZhanjin — 33.72°N, 80.35°EMunugudzhak — 63.85°N, 159.83°EMunugudzhak — 63.84°N, 159.89°EGebbie — 20.93°S, 148.13°E

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The named rock units Megadesmidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 54 further formations hold fewer occurrences each and are not listed. 30 occurrences have no formation on record, which is common for older literature.

Megadesmidae and its relatives

Permian

Where Megadesmidae and its relatives were recorded in the Permian.

Found in the same rock

947 taxa

The Paleobiology Database records 210 sites for Megadesmidae, 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

73 references

Each of the 316 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. 61 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 content0

No picture of Megadesmidae was found. Wikidata and iDigBio were searched and had none.

Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Megadesmidae, or no answer at all. This entry cannot say which.

No 3D scan of Megadesmidae was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itEdmondioidea through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Vokes 1967