Ptygmatis

Armin Reindl · CC BY 4.0 · via Wikidata/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
- HeterostrophiaPBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 71 million years on record.
The record covers at least 165.3 Mya to 93.9 Mya. No occurrence read is dated outside 168.2 Mya to 89.8 Mya.
27 occurrences of Ptygmatis on record, most of them in the Late 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
27 occurrencesThese 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
8 formations
- Tuwaiq Mt.Lst. Formation · Shaqra Group3
- Dhruma Formation · Shaqra Group2
- Zirc Limestone Formation2
- Ernstbrunn Formation2
- Osmington Oolite Formation1
- Tuwaiq Mountain Limestone Formation1
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The named rock units Ptygmatis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 occurrences have no formation on record, which is common for older literature.
Ptygmatis and its relatives
Late JurassicWhere Ptygmatis and its relatives were recorded in the Late Jurassic.
Found in the same rock
478 taxa- Nerinea8 sites
- Pseudomelania6 sites
- Actinostreon gregarea5 sites
- Ceratomyopsis arabica5 sites
- Cossmannea5 sites
- Cryptoplocus5 sites
- Discohelix5 sites
- Bourguetia4 sites
- Diceras4 sites
- Globularia4 sites
- Homomya gibbosa4 sites
- Inoperna4 sites
- Lima (Plagiostoma) subcardiiformis4 sites
- Natica (Ampullaria)4 sites
- Nerinella4 sites
- Pholadomya lirata4 sites
- Pleurotomaria4 sites
- Pseudisocardia macfadyeni4 sites
- Rhabdocidaris4 sites
- Angaria3 sites
- Arcomytilus3 sites
- Bihenithyris weiri3 sites
- Cassiopidae3 sites
- Chlamys3 sites
The Paleobiology Database records 21 sites for Ptygmatis, 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
16 references- Le Jurassique D`Arabie Centrale5
- Upper Jurassic Rudistae of the margin of the Holy Cross Mountains, Poland3
- Un faciès de type falun dans le Cénomanien basal de Charente-Maritime (France)2
- Nerineaceans from the Ernstbrunn Limestone (Tithonian, Austria)2
- Ammonite biostratigraphy of the Tithonian of Western Cuba2
- Die paläoökologische, biostratigraphische und paläogeographische Auswertung der Mollusken-Fauna der Zirc-Kalk-Formation [Paleoecological, biostratigraphic and paleogeographic analysis of the mollusc fauna of the Zirc Limestone Formation]2
- Recherches géologiques sur le Crétacé inférieur de l'Estremadura (Portugal)2
- Revision of the Bivalvia from the Upper Jurassic Reuchenette Formation, Northwest Switzerland—Ostreoidea1
- Cenomanian carbonate depositional settings: case histories from the central-southern Apennines (Italy)1
- Unpublished data1
- Late Jurassic coral/microbial reefs from the northern Paris Basin - facies, paleoecology and paleobiogeography1
- Callovian colonial corals from the Tuwaiq Mountain Limestone of Saudi Arabia1
Each of the 27 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. 4 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 Ptygmatis
- Source
- Wikidata/Commons
- Credit
- Armin Reindl
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Ptygmatis 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 itHeterostrophia through timeFormations of the Late JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.