Pleydellia

Tylwyth Eldar · CC BY-SA 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
- GrammoceratinaePBDB
- Diet
- carnivorePBDB, for Ammonoidea
- Life habit
- nektonicPBDB, for Ammonoidea
- Motility
- fast-movingPBDB, for Ammonoidea
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 9.5 million years on record.
The record covers at least 184.2 Mya to 174.7 Mya. No occurrence read is dated outside 192.9 Mya to 168.2 Mya.
574 occurrences of Pleydellia 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
574 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
14 formations
- Jurensismergel Formation255
- Subbetic Basin Formation97
- Phantom Creek Formation32
- Opalinuston Formation20
- Marnes de Fontaneilles Formation11
- Ozirovo Formation10
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The named rock units Pleydellia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 123 occurrences have no formation on record, which is common for older literature.
Pleydellia and its relatives
Early JurassicWhere Pleydellia and its relatives were recorded in the Early Jurassic.
Found in the same rock
261 taxa- Lenticulina dorbignyi dorbignyi40 sites
- Praeschuleridea39 sites
- Orthonotacythere38 sites
- Kinkelinella37 sites
- Paracypris36 sites
- Cotteswoldia aalensis34 sites
- Reinholdella34 sites
- Cotteswoldia subcompta32 sites
- Cytherelloidea32 sites
- Ammobaculites subcretaceus29 sites
- Polycope pelta29 sites
- Cotteswoldia mactra27 sites
- Aphelocythere26 sites
- Monoceratina26 sites
- Otocythere24 sites
- Acrocythere21 sites
- Cenoceras intermedium21 sites
- Cotteswoldia fluitans21 sites
- Pleurolytoceras torulosum21 sites
- Cotteswoldia lotharingica18 sites
- Pleurolytoceras hircinum17 sites
- Cotteswoldia distans16 sites
- Cotteswoldia aalensis aalensis15 sites
- Dumortieria15 sites
The Paleobiology Database records 164 sites for Pleydellia, 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
26 references- Die Grenzziehung Unter-/Mitteljura (Toarcium/Aalenium) bei Wittnau und Fuentelsaz [Determinig the boundary between Toarcium/Aalenium near Wittnau and Fuentelsaz]151
- Die Ammonitenfauna und Stratigraphie der Tongrube Mistelgau bei Bayreuth (Oberfranken)121
- The Toarcian in the Subbetic basin (southern Spain): Bio-events (ammonite and calcareous nannofossils) and carbon-isotope stratigraphy98
- Biozonación del Toarciense en el área de La Almunia de Doña Godina-Ricla (Sector Central de la Cordillera Ibérica)45
- Toarcian (Early Jurassic) ammonoids from western North America26
- Évolution et systématique des Phymatoceratinae et des Grammoceratinae (Hildocerataceae Ammonitina) de la région de Thouars, stratotype du Toarcien20
- Les Harpoceratinae, Hildoceratinae et Parinoceratinae du Toarcien de la Vendée et des Deux-Sèvres (France)19
- Das Makrobenthos der Causses (Südfrankreich): Palökologie einer mittel- bis oberliassischen Mergelfolge18
- Belemnites from the Upper Pliensbachian and the Toarcian (Lower Jurassic) of Tournadous (Causses, France)11
- The Ammonite zones of the Toarcian in Bulgaria - New evidence, subzonation and correlation with the standard zones and subzones in North-Western Europe10
- Jurassic radiolarites in a Tethyan continental margin (Subbetic, southern Spain): palaeobatymetric and biostratigraphic considerations8
- Toarcian-Aalenian Hammatoceratinae (Ammonitina) from the Gerecse Mts (NE Transdanubian Range, Hungary)7
Each of the 574 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. 14 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 content2

Picture of Pleydellia
- Source
- Wikidata/Commons
- Credit
- Tylwyth Eldar
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itGrammoceratinae through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.