Retroceramus

Retroceramus

via iDigBio · CC BY-SA · 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
InoceramidaePBDB
Diet
suspension feederPBDB, for Pteriomorphia
Life habit
epifaunalPBDB, for Pteriomorphia
Motility
facultatively mobilePBDB, for Pteriomorphia
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 43 million years on record.

The record covers at least 192.9 Mya to 149.2 Mya. No occurrence read is dated outside 199.5 Mya to 66 Mya.

Late Triassic — about 0 of 87 occurrencesEarly Jurassic — about 11 of 87 occurrencesEarly JurassicMiddle Jurassic — about 42 of 87 occurrencesMiddle JurassicLate Jurassic — about 33 of 87 occurrencesLate JurassicEarly Cretaceous — about 0 of 87 occurrencesEarly CretaceousLate Cretaceous — about 0 of 87 occurrencesLate CretaceousPaleocene — about 0 of 87 occurrences202–198 Mya — about 3 occurrences198–193 Mya — about 6 occurrences193–188 Mya — about 0.0 occurrences188–184 Mya — about 0.1 occurrences184–179 Mya — about 1.0 occurrences179–174 Mya — about 3 occurrences174–170 Mya — about 22 occurrences170–165 Mya — about 14 occurrences165–161 Mya — about 6 occurrences161–156 Mya — about 7 occurrences156–151 Mya — about 10 occurrences151–147 Mya — about 10 occurrences147–142 Mya — about 5 occurrences142–137 Mya — about 0.1 occurrences137–133 Mya — about 0.1 occurrences133–128 Mya — about 0.1 occurrences128–123 Mya — about 0.1 occurrences123–119 Mya — about 0.1 occurrences119–114 Mya — about 0.1 occurrences114–110 Mya — about 0.1 occurrences110–105 Mya — about 0.1 occurrences105–100 Mya — about 0.1 occurrences100–96 Mya — about 0.1 occurrences96–91 Mya — about 0.1 occurrences91–86 Mya — about 0.1 occurrences86–82 Mya — about 0.1 occurrences82–77 Mya — about 0.1 occurrences77–73 Mya — about 0.1 occurrences73–68 Mya — about 0.1 occurrences68–63 Mya — about 0.0 occurrences192.9 Mya149.2 Mya202 Mya63 Mya

87 occurrences of Retroceramus on record, most of them in the Middle 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

87 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

18 formations

Tolo Channel — 22.44°N, 114.28°ETolo Channel — 22.45°N, 114.22°ETolo Channel — 22.49°N, 114.32°EAucella Limestone — 3.75°S, 126.46°EAucella Limestone — 3.14°S, 129.55°EAucella Limestone — 3.30°S, 129.57°EAmeghino — 64.47°S, 58.97°WAblation Point — 70.75°S, 68.50°WHimalia Ridge — 70.75°S, 68.50°WOraka Sandstone — 38.08°S, 174.83°EHosoura — 38.67°N, 141.43°EAnchorage — 62.60°S, 61.17°WMoewaka — 37.37°S, 174.77°EPounawea — 46.45°S, 169.70°EBoatlanding Bay — 46.42°S, 169.53°EPurakauiti — 46.53°S, 169.55°EKorallenoolith — 52.13°N, 10.02°ELotena — 37.45°S, 70.43°WLotena — 36.00°S, 71.00°WMaril — 5.85°S, 144.88°ELa Manga — 36.21°S, 69.87°WYeba — 30.15°N, 92.17°E

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The named rock units Retroceramus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 59 occurrences have no formation on record, which is common for older literature.

Retroceramus and its relatives

Middle Jurassic

Where Retroceramus and its relatives were recorded in the Middle Jurassic.

Found in the same rock

264 taxa

The Paleobiology Database records 68 sites for Retroceramus, 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

30 references

Each of the 87 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. 18 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 Retroceramus

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-SA
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

Smithsonian Open Access and MorphoSource were 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 itInoceramidae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Koschelkina 1958