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Megachirella, Triassic diapsid from Italy, redescribed



From: Ben Creisler
bcreisler@gmail.com

A new online non-dino paper that may be of interest:

Silvio Renesto  & Massimo Bernardi (2013)
Redescription and phylogenetic relationships of Megachirella wachtleri
Renesto et Posenato, 2003 (Reptilia, Diapsida).
Paläontologische Zeitschrift (advance online publication)
DOI: 10.1007/s12542-013-0194-0
http://link.springer.com/article/10.1007/s12542-013-0194-0



Megachirella wachtleri Renesto et Posenato, 2003, a well preserved
partial reptile skeleton from the Middle Triassic of the Dolomites (N.
Italy), was originally considered a lepidosauromorph, but no
phylogenetic analysis was carried out. Consequently, the taxon was
overlooked in later phylogenetic analyses of the Diapsida. Here, the
holotype and only known specimen of M. wachtleri is redescribed,
allowing an investigation of its phylogenetic relationships.
Phylogenetic analyses confirm that Megachirella is a lepidosauromorph
close to the crown group lepidosaurs (Squamata + Rhynchocephalia).
Megachirella enhances our knowledge of the series of morphological
modifications that led to the origin of the Lepidosauria, the most
diverse clade of extant reptiles.