Ptychomphalus

Ptychomphalus

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

Time the record covers

At least 155 million years on record.

The record covers at least 330.3 Mya to 174.7 Mya. No occurrence read is dated outside 335.9 Mya to 161.5 Mya.

Carboniferous — about 7 of 89 occurrencesCarboniferousPermian — about 1 of 89 occurrencesPermianEarly Triassic — about 0 of 89 occurrencesMiddle Triassic — about 1 of 89 occurrencesLate Triassic — about 8 of 89 occurrencesLate TriassicEarly Jurassic — about 71 of 89 occurrencesEarly JurassicMiddle Jurassic — about 1 of 89 occurrencesLate Jurassic — about 0 of 89 occurrences339–333 Mya — about 0.5 occurrences333–327 Mya — about 0.5 occurrences321–315 Mya — about 5 occurrences309–303 Mya — about 0.5 occurrences303–297 Mya — about 0.7 occurrences297–291 Mya — about 0.7 occurrences291–285 Mya — about 0.1 occurrences249–243 Mya — about 0.9 occurrences243–237 Mya — about 1 occurrence237–231 Mya — about 5 occurrences231–225 Mya — about 0.2 occurrences212–206 Mya — about 0.9 occurrences206–200 Mya — about 11 occurrences200–194 Mya — about 11 occurrences194–188 Mya — about 26 occurrences188–182 Mya — about 23 occurrences182–176 Mya — about 0.6 occurrences176–170 Mya — about 0.5 occurrences170–164 Mya — about 0.5 occurrences164–158 Mya — about 0.2 occurrences330.3 Mya174.7 Mya339 Mya158 Mya

89 occurrences of Ptychomphalus 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

89 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

26 formations

Luxembourg Sandstone — 49.74°N, 6.05°ELuxembourg Sandstone — 49.65°N, 6.10°ELuxembourg Sandstone — 49.65°N, 5.92°ELuxembourg Sandstone — 49.67°N, 6.08°ECape Stewart Beds — 70.44°N, 22.64°WCape Stewart Beds — 70.46°N, 22.71°WCape Stewart Beds — 70.46°N, 22.63°WGastrioceras cumbriense Marine Band — 53.58°N, 2.43°WGastrioceras cumbriense Marine Band — 53.70°N, 2.30°WGastrioceras cumbriense Marine Band — 53.72°N, 2.08°WCape Stewart — 70.44°N, 22.65°WCape Stewart — 70.47°N, 22.36°WCape Stewart — 70.46°N, 22.33°WCassian — 46.59°N, 12.25°ECassian — 46.68°N, 12.15°ECassian — 46.57°N, 11.94°EBelemnite Marls — 50.72°N, 2.85°WBelemnite Marls — 50.73°N, 2.87°WCleveland Ironstone — 54.45°N, 0.57°WAmaltheenton — 52.05°N, 8.30°EBlue Lias — 51.00°N, 3.00°WHonaker Trail — 38.58°N, 109.58°WMartin Bridge Limestone — 46.33°N, 116.73°WAngulatensandstein — 48.70°N, 9.67°EHierlatz Limestone — 47.20°N, 17.87°EIsztimér Limestone — 47.19°N, 17.87°EIsztimér — 47.19°N, 17.90°EMecsek Coal — 46.16°N, 18.32°EAmaltheus Clay — 52.07°N, 10.85°EStrassen — 49.63°N, 6.01°EBetakalkbank — 48.33°N, 8.93°EAlston — 54.07°N, 2.28°WCharmouth Mudstone — 50.72°N, 2.85°WBayirkoy — 40.30°N, 29.99°ESan Cassiano — 46.53°N, 12.11°ELower Freestone — 51.80°N, 1.88°W

Loading coastlines…

The named rock units Ptychomphalus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 further formations hold fewer occurrences each and are not listed. 37 occurrences have no formation on record, which is common for older literature.

Ptychomphalus and its relatives

Early Jurassic

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

Found in the same rock

1,130 taxa

The Paleobiology Database records 73 sites for Ptychomphalus, 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

34 references

Each of the 89 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. 22 further references are not listed. 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

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

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

Occurrence data from the Paleobiology Database, CC BY 4.0. (Agassiz 1839)