Hemipedina

Hemipedina

via iDigBio · CC BY · 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
PedinidaePBDB
Diet
detritivorePBDB, for Pedinoida
Life habit
low-level epifaunalPBDB, for Pedinoida
Motility
slow-movingPBDB, for Pedinoida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 114 million years on record.

The record covers at least 227.3 Mya to 113.2 Mya. No occurrence read is dated outside 237 Mya to 100.5 Mya.

Middle Triassic — about 0 of 31 occurrencesLate Triassic — about 2 of 31 occurrencesLate TriassicEarly Jurassic — about 6 of 31 occurrencesEarly JurassicMiddle Jurassic — about 15 of 31 occurrencesMiddle JurassicLate Jurassic — about 5 of 31 occurrencesLate JurassicEarly Cretaceous — about 3 of 31 occurrencesEarly CretaceousLate Cretaceous — about 0 of 31 occurrences240–235 Mya — about 0.2 occurrences235–230 Mya — about 0.5 occurrences230–226 Mya — about 0.4 occurrences226–221 Mya — about 0.2 occurrences221–216 Mya — about 0.2 occurrences216–211 Mya — about 0.2 occurrences211–207 Mya — about 0.2 occurrences207–202 Mya — about 0.0 occurrences202–197 Mya — about 2 occurrences197–192 Mya — about 0.1 occurrences192–188 Mya — about 1 occurrence188–183 Mya — about 0.8 occurrences183–178 Mya — about 1 occurrence178–173 Mya — about 3 occurrences173–169 Mya — about 7 occurrences169–164 Mya — about 3 occurrences164–159 Mya — about 2 occurrences159–155 Mya — about 4 occurrences150–145 Mya — about 1.0 occurrences145–140 Mya — about 0.0 occurrences121–117 Mya — about 0.8 occurrences117–112 Mya — about 0.8 occurrences112–107 Mya — about 0.6 occurrences107–103 Mya — about 0.6 occurrences103–98 Mya — about 0.3 occurrences227.3 Mya113.2 Mya240 Mya98 Mya

31 occurrences of Hemipedina 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

31 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

15 formations

Birdlip Limestone — 51.85°N, 2.10°WBirdlip Limestone — 51.72°N, 2.21°WOpalinuston — 47.37°N, 7.78°ECornbrash — 51.32°N, 2.21°WCornbrash — 50.87°N, 2.61°WCornbrash — 50.64°N, 2.55°WCoralline Oolite — 51.51°N, 1.98°WCoralline Oolite — 51.76°N, 1.20°WCoralline Oolite — 51.44°N, 2.00°WCalcaire d’Audun-le-Tiche — 49.47°N, 6.02°EBeacon Limestone — 50.92°N, 2.91°WMarlstone Rock — 50.95°N, 2.81°WMarlstone Rock — 52.05°N, 2.08°WPluto Glacier — 71.78°S, 68.82°WPluto Glacier — 71.32°S, 68.31°WSumra — 26.00°N, 56.00°EMarnes à coraux de Foug — 48.68°N, 5.78°EBlue Lias — 52.03°N, 2.15°WCornbrash — 50.78°N, 1.77°ECayton Clay — 54.24°N, 0.36°WKimmeridge Clay — 50.60°N, 2.08°WNeptune Glacier — 72.15°S, 69.00°W

Loading coastlines…

The named rock units Hemipedina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Hemipedina and its relatives

Middle Jurassic

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

Found in the same rock

101 taxa

The Paleobiology Database records 30 sites for Hemipedina, 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

11 references

Each of the 31 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. 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 Hemipedina

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Hemipedina 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 itPedinidae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.