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Rhamphorhynchidae (Redirected from Scaphognathidae)

Rhamphorhynchids
Temporal range: Early-Late Jurassic, 180–148.5 Ma
Rhamphorhynchus phyllurus.jpg
Fossil specimen of Rhamphorhynchus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: Pterosauria
Clade: Novialoidea
Clade: Breviquartossa
Unwin, 2003
Family: Rhamphorhynchidae
Seeley, 1870
Type species
Pterodactylus longicaudus
Münster, 1839
Subgroups
Synonyms
  • Scaphognathidae Hooley, 1913

Rhamphorhynchidae is a group of early pterosaurs named after Rhamphorhynchus, that lived in the Late Jurassic. The family Rhamphorhynchidae was named in 1870 by Harry Govier Seeley. Members of the group possess no more than 11 pairs of teeth in the rostrum, a deltopectoral crest that is constricted at the base but expanded at the distal end, and a bent phalange on the fifth toe.

Rhamphorhynchidae traditionally contains two subfamilies: the Rhamphorhynchinae and the Scaphognathinae. While not recovered as distinct clades by all analyses, there do appear to be traits uniting members of each group. Rhamphorhynchines are more common, were lightly built, and had jaws ending in pointed tips that contained more teeth, which are often procumbent (pointed forward). Scaphognathines are comparatively quite rare, were more robust skeletally, and had shorter wing proportions. The broad-tipped skulls of scaphognathines held fewer teeth which were widely spaced and vertically oriented in the jaw.

Classification

The cladogram (family tree) of rhamphorhynchids below is the result of a large phylogenetic analysis published by Andres & Myers in 2013. Note that this study does not recover Scaphognathinae.

 Breviquartossa 
 Rhamphorhynchidae 

Scaphognathus crassirostris

 Rhamphorhynchinae 

Dorygnathus banthensis

Cacibupteryx caribensis

Nesodactylus hesperius

Rhamphorhynchus muensteri

Harpactognathus gentryii

Angustinaripterus longicephalus

Sericipterus wucaiwanensis



This page was last updated at 2022-06-01 03:40 UTC. Update now. View original page.

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