Nummocalcar

Nummocalcar

via iDigBio · CC BY-NC-ND · 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
DiscohelicidaePBDB
Diet
grazerPBDB, for Vetigastropoda
Life habit
epifaunalPBDB, for Vetigastropoda
Motility
actively mobilePBDB, for Vetigastropoda
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 59 million years on record.

The record covers at least 165.3 Mya to 106.3 Mya. No occurrence read is dated outside 168.2 Mya to 100.5 Mya.

Middle Jurassic — about 7 of 18 occurrencesMiddle JurassicLate Jurassic — about 1 of 18 occurrencesLate JurassicEarly Cretaceous — about 10 of 18 occurrencesEarly CretaceousLate Cretaceous — about 0 of 18 occurrences170–167 Mya — about 0.8 occurrences167–165 Mya — about 2 occurrences165–163 Mya — about 3 occurrences163–160 Mya — about 1 occurrence153–151 Mya — about 0.5 occurrences151–148 Mya — about 0.5 occurrences139–137 Mya — about 0.1 occurrences137–134 Mya — about 0.5 occurrences134–132 Mya — about 0.4 occurrences127–125 Mya — about 0.4 occurrences125–123 Mya — about 1 occurrence123–120 Mya — about 0.7 occurrences120–118 Mya — about 0.5 occurrences118–116 Mya — about 0.7 occurrences116–113 Mya — about 0.7 occurrences113–111 Mya — about 2 occurrences111–109 Mya — about 1 occurrence109–106 Mya — about 0.5 occurrences106–104 Mya — about 0.6 occurrences104–101 Mya — about 0.6 occurrences101–99 Mya — about 0.2 occurrences165.3 Mya106.3 Mya170 Mya99 Mya

18 occurrences of Nummocalcar on record, most of them in the Early Cretaceous. 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

18 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

6 formations

Grès verts helvétiques — 45.90°N, 6.34°EGrès verts helvétiques — 46.04°N, 6.62°EGrès verts helvétiques — 46.01°N, 6.35°EZohar — 30.93°N, 34.98°ECalcaire de Caen — 48.97°N, 0.13°WHidasivölgy Marl — 46.20°N, 18.35°EConglomérats de Bargy — 46.02°N, 6.46°ETataouine — 32.73°N, 10.48°E

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The named rock units Nummocalcar has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Nummocalcar and its relatives

Early Cretaceous

Where Nummocalcar and its relatives were recorded in the Early Cretaceous.

Found in the same rock

302 taxa

The Paleobiology Database records 16 sites for Nummocalcar, 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

9 references

Each of the 18 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 Nummocalcar

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-ND
Commercial use
the licence does not allow it

No 3D scan of Nummocalcar 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itDiscohelicidae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cossmann 1896