Pyrgotrochus

Pyrgotrochus

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
PleurotomariidaePBDB
Diet
carnivorePBDB, for Pleurotomariidae
Life habit
epifaunalPBDB, for Pleurotomariidae
Motility
actively mobilePBDB, for Pleurotomariidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 47 million years on record.

The record covers at least 184.2 Mya to 137.05 Mya. No occurrence read is dated outside 199.5 Mya to 132.6 Mya.

Early Jurassic — about 8 of 23 occurrencesEarly JurassicMiddle Jurassic — about 12 of 23 occurrencesMiddle JurassicLate Jurassic — about 0 of 23 occurrencesLate JurassicEarly Cretaceous — about 3 of 23 occurrencesEarly Cretaceous201–199 Mya — about 0.1 occurrences199–196 Mya — about 0.3 occurrences196–194 Mya — about 0.3 occurrences194–192 Mya — about 1 occurrence192–189 Mya — about 2 occurrences189–187 Mya — about 2 occurrences187–185 Mya — about 2 occurrences185–182 Mya — about 0.3 occurrences175–173 Mya — about 1 occurrence173–171 Mya — about 2 occurrences171–168 Mya — about 5 occurrences168–166 Mya — about 1 occurrence166–164 Mya — about 0.8 occurrences164–161 Mya — about 0.7 occurrences161–159 Mya — about 0.1 occurrences159–157 Mya — about 0.1 occurrences157–154 Mya — about 0.1 occurrences138–136 Mya — about 0.8 occurrences136–134 Mya — about 2 occurrences134–131 Mya — about 0.7 occurrences184.2 Mya137.05 Mya201 Mya131 Mya

23 occurrences of Pyrgotrochus on record, most of them in the Middle 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

23 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

7 formations

Hierlatz Limestone — 47.20°N, 17.87°EHierlatz Limestone — 47.25°N, 17.77°EKieselkalk — 47.42°N, 9.90°EIsztimér Limestone — 47.18°N, 17.88°ECalcaires de Caen — 49.42°N, 0.40°EIsztimér — 47.20°N, 17.89°ETűzkövesárok Limestone — 47.28°N, 18.08°EOolithe ferrugineuse de Bayeux — 49.03°N, 0.42°W

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The named rock units Pyrgotrochus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Pyrgotrochus and its relatives

Middle Jurassic

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

Found in the same rock

176 taxa

The Paleobiology Database records 14 sites for Pyrgotrochus, 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 23 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 Pyrgotrochus

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

No 3D scan of Pyrgotrochus 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.

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

Keep going

What may have been alongside itPleurotomariidae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Fischer 1885