Ptychomphalus expansus

Ptychomphalus expansus

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
PtychomphalusPBDB
Diet
grazerPBDB, for Vetigastropoda
Life habit
epifaunalPBDB, for Vetigastropoda
Motility
actively mobilePBDB, for Vetigastropoda
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 8.7 million years on record.

The record covers at least 192.9 Mya to 184.2 Mya. No occurrence read is dated outside 199.5 Mya to 174.7 Mya.

Early Jurassic — about 17 of 17 occurrencesEarly JurassicMiddle Jurassic — about 0 of 17 occurrences200–199 Mya — about 0.1 occurrences199–198 Mya — about 0.2 occurrences198–197 Mya — about 0.2 occurrences197–197 Mya — about 0.2 occurrences197–196 Mya — about 0.2 occurrences196–195 Mya — about 0.2 occurrences195–194 Mya — about 0.2 occurrences194–193 Mya — about 0.2 occurrences193–192 Mya — about 1 occurrence192–191 Mya — about 1 occurrence191–191 Mya — about 1 occurrence191–190 Mya — about 1 occurrence190–189 Mya — about 1 occurrence189–188 Mya — about 1 occurrence188–187 Mya — about 1 occurrence187–186 Mya — about 1 occurrence186–185 Mya — about 1 occurrence185–185 Mya — about 1 occurrence185–184 Mya — about 0.6 occurrences184–183 Mya — about 0.1 occurrences183–182 Mya — about 0.1 occurrences182–181 Mya — about 0.1 occurrences181–180 Mya — about 0.1 occurrences180–179 Mya — about 0.1 occurrences179–179 Mya — about 0.1 occurrences179–178 Mya — about 0.1 occurrences178–177 Mya — about 0.1 occurrences177–176 Mya — about 0.1 occurrences176–175 Mya — about 0.1 occurrences175–174 Mya — about 0.0 occurrences192.9 Mya184.2 Mya200 Mya174.2 Mya

17 occurrences of Ptychomphalus expansus on record, most of them in the Early 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

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

10 formations

Cleveland Ironstone — 54.45°N, 0.57°WAmaltheenton — 52.05°N, 8.30°EBlue Lias — 51.00°N, 3.00°WHierlatz Limestone — 47.20°N, 17.87°EIsztimér Limestone — 47.19°N, 17.87°EIsztimér — 47.19°N, 17.90°EAmaltheus Clay — 52.07°N, 10.85°ECharmouth Mudstone — 50.72°N, 2.85°WBelemnite Marls — 50.72°N, 2.85°WBayirkoy — 40.30°N, 29.99°E

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The named rock units Ptychomphalus expansus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Ptychomphalus expansus and its relatives

Early Jurassic

Where Ptychomphalus expansus and its relatives were recorded in the Early Jurassic.

Found in the same rock

230 taxa

The Paleobiology Database records 16 sites for Ptychomphalus expansus, 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 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 Ptychomphalus expansus

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

No 3D scan of Ptychomphalus expansus 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 itPtychomphalus through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Sowerby 1821)