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Radiodactylus and Alamodactylus, new pterosaurs from Texas



From: Ben Creisler
bcreisler@gmail.com


A new advance online paper:

Brian Andres and Timothy S. Myers (2013)
Lone Star Pterosaurs.
Earth and Environmental Science Transactions of the Royal Society of
Edinburgh  (advance online publication)
DOI: http://dx.doi.org/10.1017/S1755691013000303
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9015648&fulltextType=RA&fileId=S1755691013000303

The state of Texas has one of the greatest records of pterosaurs in
the world, surpassing all other US states and most countries in the
number of occurrences. Uniquely, this record extends over the entire
150+ million history of the Pterosauria. A review of this pterosaur
record confirms at least 30 pterosaurs known from 13 occurrences,
including five valid species. The holotypes of two of these species
have been described before and are diagnosed and erected here as the
new species Radiodactylus langstoni, gen. et sp. nov., named in honour
of Dr. Wann Langston Jr, the father of Texas pterosaurology, and
Alamodactylus byrdi, gen. et sp. nov.. Phylogenetic analysis of all
Texas pterosaurs that can be coded for more than one character
confirms that these species are distinct from others and occupy
phylogenetic positions close to their original classifications.
Radiodactylus langstoni is recovered as a non-azhdarchid azhdarchoid,
Quetzalcoatlus northropi as an azhdarchid, Alamodactylus byrdi as a
non-pteranodontoid pteranodontian, Aetodactylus as a pteranodontoid,
and Coloborhynchus wadleighi as an ornithocheirid. The presence of
eudimorphodontid, dsungaripterid, as well as other azhdarchid and
pteranodontoid pterosaurs, is also confirmed in Texas.