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Caelidracones

Caelidracones
Temporal range: Middle JurassicLate Cretaceous, 164–66 Ma
Pteranodon sternbergi pair.jpg
Replica of Geosternbergia sternbergi skeletons, female (left) and male (right)
Tropeognathus mesembrinus MN 01.jpg
Skeletal reconstruction of Tropeognathus mesembrinus in the National Museum of Brazil
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: Pterosauria
Clade: Pterodactyliformes
Clade: Caelidracones
Unwin, 2003
Subgroups

The Caelidracones is a group of pterosaurs.

The clade Caelidracones was defined in 2003 by David Unwin as the group consisting of the last common ancestor of Anurognathus ammoni and Quetzalcoatlus northropi, and all its descendants.

The name Caelidracones means "sky dragons" from Latin caelum, "heaven", and draco, "dragon" and is a reference to Harry Govier Seeley's 1901 book, Dragons of the Air.

Classification

In Unwin's original classification, the Caelidracones were considered the sister group of the Dimorphodontidae within the Macronychoptera and consist of the Anurognathidae and the Lonchognatha. More recent studies of pterosaur relationships have found anurognathids and pterodactyloids to be sister groups, which would limit Caelidracones to just those two clades.

Below is a cladogram showing the results of a phylogenetic analysis presented by Longrich, Martill, and Andres, 2018. This study found the two traditional groupings of ctenochasmatoids and kin as an early branching group, with all other pterodactyloids grouped into the Eupterodactyloidea.

 Caelidracones 

AnurognathidaeAnurognathusDB white background.jpg

 Pterodactyloidea 

KryptodrakonKryptodrakon.jpeg

Lophocratia
Archaeopterodactyloidea 

GermanodactylidaeAltmuehlopterus DB.jpg

 Euctenochasmatia 

PterodactylusPterodactylus BMMS7 life.png

CtenochasmatoideaPterodaustro BW.jpg

Eupterodactyloidea 

Haopterus

Ornithocheiroidea

Piksi

 Pteranodontoidea 

OrnithocheiromorphaLiaoningopterusDB flipped.jpg

PteranodontiaPteranodon longiceps mmartyniuk wiki.png

 Azhdarchoidea 

TapejaromorphaTapimpDB.jpg

NeoazhdarchiaQuetzalcoatlus07.jpg


This page was last updated at 2022-06-01 03:44 UTC. Update now. View original page.

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