Ptenoglossa
The Ptenoglossa is an informal taxonomic group of sea snails. This group was considered paraphyletic or polyphyletic by Ponder and Lindberg (1997) in their classification of gastropod molluscs.

Rez242 · 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
- GastropodaPBDB
- Diet
- carnivorePBDB
- Life habit
- epifaunalPBDB
- Motility
- actively mobilePBDB
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 245 million years on record.
The record covers at least 245.19 Mya to 129 ka. No occurrence read is dated outside 247 Mya to 11.7 ka.
67 occurrences of Ptenoglossa on record, most of them in the Middle Triassic. The Paleobiology Database records this as a living group. 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
67 occurrences- Middle Triassic22%
- Late Triassic9%
- Early Jurassic12%
- Middle Jurassic13%
- Early Cretaceous6%
- Paleocene1%
- Eocene1%
- Oligocene4%
- Miocene11%
- Pliocene1%
- Pleistocene18%
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
23 formations
- Trochitenkalk Formation · Muschelkalk Group5
- Aldabra Limestone Formation5
- Martin Bridge Limestone Formation · Seven Devils Group2
- San Julian Formation2
- Chenque Formation2
- Navidad Formation2
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The named rock units Ptenoglossa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 29 occurrences have no formation on record, which is common for older literature.
Ptenoglossa and its relatives
Middle TriassicWhere Ptenoglossa and its relatives were recorded in the Middle Triassic.
Found in the same rock
1,374 taxa- Cryptaulax9 sites
- Parallelodon9 sites
- Colostracon (Ovactaeonina)8 sites
- Undularia8 sites
- Francocerithium kochi7 sites
- Kalchreuthia frankei7 sites
- Levipleura blainvillei7 sites
- Neodonaldina sinuata7 sites
- Palaeonucula7 sites
- Pleuromya7 sites
- Worthenia7 sites
- Ovactaeonina kalchreuthensis6 sites
- Ovactaeonina sendelbachensis6 sites
- Palaeoneilo galatea6 sites
- Pommerozygia6 sites
- Rollieria6 sites
- Cylindrobullina5 sites
- Eucycloscala5 sites
- Eucyclus5 sites
- Laevidentalium5 sites
- Loxonema5 sites
- Lucinidae5 sites
- Myoconcha5 sites
- Myophoria vulgaris5 sites
The Paleobiology Database records 47 sites for Ptenoglossa, 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
35 references- Faunal lists from Muschelkalk Museum, Ingelfingen, Germany5
- Palökologie von Benthos-Gemeinschaften im oberen Pliensbach (Amaltheenton) von Kalchreuth (Mittelfranken)5
- Faunal response to the instability of reef habitats: Pleistocene molluscan assemblages of Aldabra Atoll5
- Zygopleuroidea (Gastropoda) aus dem Lias und Dogger Deutschlands und Nordwestpolens4
- Archaeo- und Caenogastropoda aus dem Dogger Deutschlands und Nordpolens4
- Late Pleistocene molluscan assemblages from the coral reefs of the Kenya coast4
- Tertiary Marine Molluscan Assemblages of Eastern Patagonia (Argentina): A Biostratigraphic Analysis3
- Peonza: New Gastropod Genus from the Middle Tertiary of Patagonia and Chile3
- Early Jurassic (Pliensbachian) gastropods from Franconia, Southern Germany2
- The gastropods from the Barremian of Serre de Bleyton (Drôme, SE France)2
- New and little-known gastropods from the Albian of the Mahajanga Basin, northwestern Madagascar2
- Molluscos bivalvos y gastrópodos del Mioceno marino de Isla Stokes, sur de Chile2
Each of the 67 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. 23 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 Ptenoglossa
- Source
- Wikipedia/Commons
- Credit
- Rez242
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Ptenoglossa 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.
The description on this site
- Source
- Wikipedia, “Ptenoglossa”
- 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 itGastropoda through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gray 1853)