Nuculana

Searched as Nuculana (Rollieria) sp.. The Paleobiology Database treats Nuculana as the accepted name.

Nuculana is a genus of bivalves in the family Nuculanidae. It includes the following species:

Nuculana

Wood (scan by Tom Meijer, 26-6-2007) · Public Domain · 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
NuculanidaePBDB
Diet
deposit feeder, suspension feederPBDB, for Nuculanidae
Life habit
infaunalPBDB, for Nuculanidae
Motility
facultatively mobilePBDB, for Nuculanidae
Vision
blindPBDB, for Bivalvia
Environment
coastal,inner shelf,outer shelf,oceanicPBDB, for Nuculanidae

Time the record covers

At least 30 million years on record.

The record covers at least 182.9 Mya to 152.21 Mya. No occurrence read is dated outside 184.2 Mya to 149.2 Mya.

Early Jurassic — about 15 of 17 occurrencesEarly JurassicMiddle Jurassic — about 1 of 17 occurrencesMiddle JurassicLate Jurassic — about 1 of 17 occurrencesLate Jurassic185–184 Mya — about 5 occurrences184–182 Mya — about 8 occurrences182–181 Mya — about 1 occurrence181–180 Mya — about 0.8 occurrences180–179 Mya — about 0.1 occurrences179–178 Mya — about 0.1 occurrences178–176 Mya — about 0.1 occurrences176–175 Mya — about 0.1 occurrences175–174 Mya — about 0.1 occurrences165–164 Mya — about 0.3 occurrences164–163 Mya — about 0.3 occurrences163–162 Mya — about 0.3 occurrences162–161 Mya — about 0.1 occurrences153–152 Mya — about 0.0 occurrences152–151 Mya — about 0.4 occurrences151–150 Mya — about 0.4 occurrences150–149 Mya — about 0.2 occurrences182.9 Mya152.21 Mya184.9 Mya148.5 Mya

17 occurrences of Nuculana on record, most of them in the Early 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

17 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

2 formations

Habo beds — 23.20°N, 69.80°ENusplingen Limestone — 48.13°N, 8.88°E

Loading coastlines…

The named rock units Nuculana has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 occurrences have no formation on record, which is common for older literature.

Nuculana and its relatives

Early Jurassic

Where Nuculana and its relatives were recorded in the Early Jurassic.

Found in the same rock

1,804 taxa

The Paleobiology Database records 1,377 sites for Nuculana, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

4 references

Each of the 17 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 Nuculana

Credit
Wood (scan by Tom Meijer, 26-6-2007)
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Nuculana was found in Smithsonian Open Access and Sketchfab.

MorphoSource was 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 itNuculanidae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Link 1807