Unusualmorphology in the mid-Cretaceous lizard Oculudentavis
Bolet, Arnau (Institut Català de Paleontologia Miquel Crusafont)
Stanley, Edward L. (Florida Museum of Natural History. Department of Natural History)
Daza, Juan D. (Sam Houston State University. Department of Biological Sciences)
Salvador Arias, J. (Unidad Ejecutora Lillo)
Čerňanský, Andrej (University in Bratislava. Department of Ecology)
Bauer, Aaron M.. (Villanova University. Department of Biology)
Bevitt, Joseph J. (Australian Centre for Neutron Scattering)
Peretti, Adolf (Peretti Museum Foundation)
Evans, Susan E. (University College London. Department of Cell and Developmental Biology)

Data:	2021
Resum:	Oculudentavis khaungraae was described based on a tiny skull trapped in amber. The slender tapering rostrum with retracted narial openings, large eyes, and short vaulted braincase led to its identification as the smallest avian dinosaur on record, comparable to the smallest living hummingbirds. Despite its bird-like appearance, Oculudentavis showed several features inconsistent with its original phylogenetic placement. Here, we describe a more complete specimen that demonstrates Oculudentavis is actually a bizarre lizard of uncertain position. The new specimen is described as a new species within the genus Oculudentavis. The new interpretation and phylogenetic placement highlight a rare case of convergent evolution in skull proportions but apparently not in morphological characters. Our results re-affirm the importance of Myanmar amber in yielding unusual taxa from a forest ecosystem rarely represented in the fossil record.
Ajuts:	Ministerio de Ciencia e Innovación IJC2018-037685-I
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Burmite ; Dinosaur ; Lizard ; HRCT ; Synchrotron ; Myanmar ; Comparative anatomy ; Phylogenetic analyses ; Osteology ; Cretaceous
Publicat a:	Current Biology, Vol. 31 (2021) , 1-12, ISSN 1879-0445

DOI: 10.1016/j.cub.2021.05.040

25 p, 6.8 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > Institut Català de Paleontologia Miquel Crusafont (ICP)
Articles > Articles de recerca
Articles > Articles publicats