Platypterygiinae
Platypterygiinae is an extinct subfamily of ophthalmosaurid thunnosaur ichthyosaurs from the early Late Jurassic to the early Late Cretaceous of Asia, Australia, Europe, North America and South America. Currently, the oldest known platypterygiine is Brachypterygius. Platypterygiines were characterized by square tooth roots in cross-section, an extremely reduced extracondylar area of the basioccipital, prominent dorsal and ventral trochanters on humerus and ischiopubis lacking an obturator foramen.

Creator: Dmitry Bogdanov · CC BY 3.0 · 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
- OphthalmosauridaePBDB
- Diet
- carnivorePBDB, for Ichthyosauria
- Life habit
- nektonicPBDB, for Ichthyopterygia
- Motility
- actively mobilePBDB, for Ichthyosauria
- Environment
- marinePBDB, for Ichthyosauria
Time the record covers
At least 48 million years on record.
The record covers at least 149.2 Mya to 100.5 Mya. No occurrence read is dated outside 161.5 Mya to 66 Mya.
106 occurrences of Platypterygiinae on record, most of them in the Early Cretaceous. 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
106 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
33 formations
- Toolebuc Formation · Rolling Downs Group15
- West Melbury Marly Chalk Formation · Chalk Group10
- Zapata Formation6
- Marnes bleues Formation5
- Vaca Muerta Formation3
- Gault Formation3
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The named rock units Platypterygiinae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 further formations hold fewer occurrences each and are not listed. 31 occurrences have no formation on record, which is common for older literature.
Platypterygiinae and its relatives
Early CretaceousWhere Platypterygiinae and its relatives were recorded in the Early Cretaceous.
Found in the same rock
364 taxa- Platypterygius24 sites
- Platypterygius australis17 sites
- Pervushovisaurus campylodon13 sites
- Ichthyosauria10 sites
- Plesiosauria8 sites
- Elasmosauridae7 sites
- Inoceramus6 sites
- Platypterygius americanus5 sites
- Sisteronia seeleyi5 sites
- Cretalamna appendiculata4 sites
- Ophthalmosauridae4 sites
- Ophthalmosaurinae4 sites
- Pliosauridae4 sites
- Chimaeridae3 sites
- Cretalamna3 sites
- Platypterygius hauthali3 sites
- Pterodactyloidea3 sites
- Squalicorax3 sites
- Theropoda3 sites
- Aegirosaurus leptospondylus2 sites
- Anhangueridae2 sites
- Aucellina2 sites
- Belonostomus2 sites
- Beudanticeras sutherlandi2 sites
The Paleobiology Database records 90 sites for Platypterygiinae, 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
67 references- High diversity in Cretaceous ichthyosaurs from Europe prior to their extinction11
- The Australian Cretaceous ichthyosaur Platypterygius australis: A description and review of postcranial remains9
- Taxonomy of Platypterygius campylodon and the diversity of the last ichthyosaurs5
- Présence du genre Platypterygius (Ichthyosauria, Reptilia) dans le Cénomanien inférieur de Villers-sur-Mer (Normandie, France)5
- A Lower Cretaceous ichthyosaur graveyard in deep marine slope channel deposits at Torres del Paine National Park, southern Chile3
- Mesozoic marine reptiles of Russia and other former Soviet republics3
- Jack and Etheridge, 18923
- Les reptiles du terrain crétacé du N.-E. du bassin de Paris [The reptiles of the Cretaceous terrain of the NE of the Paris Basin]3
- Extinction of fish-shaped marine reptiles associated with reduced evolutionary rates and global environmental volatility2
- Origin, biodiversity, and extinction of Cretaceous ichthyosaurs2
- Redescription and phylogenetic position of Caypullisaurus (Ichthyosauria: Ophthalmosauridae)2
- A mid-Cretaceous association of shell beds and organic-rich shale: bivalve exploitation of a nutrient-rich, anoxic seafloor environment2
Each of the 106 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. 55 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 Platypterygiinae
- Source
- Wikipedia/Commons
- Credit
- Creator: Dmitry Bogdanov
- Licence
- CC BY 3.0
- Commercial use
- the licence allows it
No 3D scan of Platypterygiinae 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
- 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 itOphthalmosauridae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Arkhangelsky 2001