Biology:Lamarqueavis
Lamarqueavis is an extinct genus of ornithuran dinosaurs from the family Cimolopterygidae known from Late Cretaceous-aged rocks from Argentina, Canada, and the United States. The type species, L. australis, was named in 2010 and is based on the holotype MML 207, a partial right coracoid found in the Allen Formation, Argentina.[1] Two other species, L. minima, based on the holotype UCMP 53976, a right coracoid found in the Lance Formation, Wyoming,[2] and L. petra, based on the holotype AMNH 21911, a left coracoid also found in the Lance Formation, Wyoming,[3] were transferred over from Cimolopteryx to Lamarqueavis in 2010.[1] A third unnamed species is known from the Dinosaur Park Formation of Alberta, Canada.[3]
Lamarqueavis autralis and Lamarqueavis sp. were placed in Cimolopterygidae based on the family's traits; a humeral articular facet that's ventrally oriented, a sternally extended procoracoid process that developed into a thin lamina, and a large ventrally positioned supracoracoid nerve foramen.[4] Despite these family traits, they were found to be unique to Lamarqueavis, while not present in Cimolopteryx.[4]
References
- ↑ 1.0 1.1 Federico L. Agnolin (2010). "An avian coracoid from the Upper Cretaceous of Patagonia, Argentina". Stvdia Geologica Salmanticensia 46 (2): 99–119. http://campus.usal.es/~revistas_trabajo/index.php/0211-8327/article/view/7642/8861.
- ↑ Brodkorb, P. (1963). Birds from the Upper Cretaceous of Wyoming. Proceedings of the XIII International Ornithological Congress 55-70
- ↑ 3.0 3.1 Hope, S. (2002). The Mesozoic radiation of Neornithes. Mesozoic Birds: Above the Heads of Dinosaurs. University of California Press, Berkeley 339-388
- ↑ 4.0 4.1 Mohr, Sydney R.; Acorn, John H.; Funston, Gregory F.; Currie, Philip J. (2020). "An ornithurine bird coracoid from the Late Cretaceous of Alberta, Canada" (in en). Canadian Journal of Earth Sciences 58 (2): 134–140. doi:10.1139/cjes-2019-0202. ISSN 0008-4077. https://cdnsciencepub.com/doi/10.1139/cjes-2019-0202.
Template:Maniraptora Wikidata ☰ Q107292158 entry
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