Ctenochasmatidae
Ctenochasmatidae is a group of pterosaurs within the suborder Pterodactyloidea. They are characterized by their distinctive teeth, which are thought to have been used for filter-feeding. Ctenochasmatids lived from the Late Jurassic to the Early Cretaceous periods.

Crawdad Blues · CC0 · 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- Also called
- ctenochasmatidPBDB
- Sits inside
- EuctenochasmatiaPBDB
- Diet
- piscivorePBDB, for Pterosauria
- Life habit
- volantPBDB, for Pterosauria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- marinePBDB, for Pterosauria
Time the record covers
At least 33 million years on record.
The record covers at least 154.8 Mya to 121.4 Mya. No occurrence read is dated outside 161.5 Mya to 113.2 Mya.
18 occurrences of Ctenochasmatidae 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
18 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
- Ksar Metlili Formation3
- Yixian Formation · Jehol Group2
- Tacuarembó Formation2
- Quebrada Monardes Formation1
- Wessex Formation · Wealden Group1
- Tiaojishan Formation1
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The named rock units Ctenochasmatidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.
Ctenochasmatidae and its relatives
Late JurassicWhere Ctenochasmatidae and its relatives were recorded in the Late Jurassic.
Found in the same rock
208 taxa- Pterodactyloidea4 sites
- Theropoda4 sites
- Osteichthyes3 sites
- Pterosauria3 sites
- Rhamphorhynchidae3 sites
- Squamata3 sites
- Actinopterygii2 sites
- Allosauroidea2 sites
- Anoualerpeton unicus2 sites
- Anura2 sites
- Atoposauridae2 sites
- Bivalvia2 sites
- Caturidae2 sites
- Crocodylia2 sites
- Dromaeosauridae2 sites
- Dryolestidae2 sites
- Egertonodus basanus2 sites
- Gastropoda2 sites
- Ginglymodi2 sites
- Gnathosaurinae2 sites
- Goniopholis2 sites
- Iguanodontidae2 sites
- Lonchidion marocensis2 sites
- Mammalia2 sites
The Paleobiology Database records 16 sites for Ctenochasmatidae, 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
14 references- A new ctenochasmatid (Pterosauria, Pterodactyloidea) from the late Jurassic of Uruguay2
- New data on the microvertebrate fauna from the Upper Jurassic or lowest Cretaceous of Ksar Metlili (Anoual Syncline, eastern Morocco)2
- Palaeontology of the Purbeck-type (Tithonian, Late Jurassic) bonebeds of Chassiron (Oléron Island, western France)2
- The pterodactyloids from the Purbeck Limestone Formation of Dorset2
- A new pterodactyloid pterosaur with a unique filter-feeding apparatus from the Late Jurassic of Germany1
- New ctenochasmatid pterosaur record for Gondwana: discovery in the Lower Cretaceous continental deposits of the Atacama Desert, northern Chile1
- Vertebrate fossils from the Kimmeridgian of Brunn: the oldest fauna from the Solnhofen Archipelago (Late Jurassic, Bavaria, Germany)1
- Earliest filter-feeding pterosaur from the Jurassic of China and ecological evolution of Pterodactyloidea1
- Microvertébrés de la transition Jurassique-Crétacé du synclinal d’Anoual (Haut Atlas Oriental), Maroc [Microvertebrates at the Jurassic-Cretaceous transition in the Anoual Syncline (Eastern High Atlas, Morocco)]1
- A new archaeopterodactyloid pterosaur from the Jiufotang Formation of western Liaoning, China, with a comparison of sterna in Pterodactylomorpha1
- A new ctenochasmatid pterosaur from the Lower Cretaceous, western Liaoning, China1
- Pterosaurs of the Wessex Formation (Earl Cretaceous, Barremian) of the Isle of Wight, southern England: a review with new data1
Each of the 18 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. 2 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 Ctenochasmatidae
- Source
- Wikipedia/Commons
- Credit
- Crawdad Blues
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Ctenochasmatidae 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 itEuctenochasmatia through timeFormations of the Late JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Nopcsa 1928)