New crested specimens of the Late Cretaceous pterosaurNyctosaurus

被引：0
作者：
S. Christopher Bennett
机构：
[1] University of Bridgeport,College of Chiropractic
来源：
Paläontologische Zeitschrift | 2003年 / 77卷 / 1期
关键词：
Pterodactyloidea; Pterosauria; Niobrara Formation; Late Cretaceous; cranial crest; display; Pterodactyloidea; Pterosauria; Niobrara Formation; Ober-Kreide; Schädelkamm; display;
D O I：
10.1007/BF03004560
中图分类号：
学科分类号：
摘要：
Two recently collected specimens of the Late Cretaceous pterosaurNyctosaurus differ from all previously known specimens in the possession of a large branching cranial crest. The crest extends upward and backward from the posterior skull roof and is nearly three times the length of the skull proper. Despite the large crest, the specimens do not differ significantly in morphology from previously known specimens ofNyctosaurus, and do not seem to represent a new species ofNyctosaurus. The specimens suggest that the cranial crest was developed late in ontogeny, which is consistent with the interpretation of pterosaur cranial crests as intraspecific display structures.
引用
收藏
页码：61 / 75
页数：14
相关论文
共 23 条
[1]  
Bennett S.C.(1992)Sexual dimorphism of Journal of Vertebrate Paleontology 12 422-434
[2]  
Bennett S.C.(1993) and other pterosaurs, with comments on cranial crests Paleobiology 19 92-106
[3]  
Bennett S.C.(1994)The ontogeny of Occasional Papers of the Museum of Natural History, University of Kansas, Lawrence 169 1-70
[4]  
Bennett S.C.(1996) and other pterosaurs Journal of Vertebrate Paleontology 16 432-444
[5]  
Bennett S.C.(2000)Taxonomy and systematics of the Late Cretaceous pterosaur Current Research in Earth Sciences, Kansas Geological Survey Bulletin 244 1-26
[6]  
Bennett S.C.(2001) (Pterosauria, Pterodactyloidea) Palaeontographica (A) 260 1-112
[7]  
Bennett S.C.(2002)Year-classes of pterosaurs frora the Solnhofen Limestone of Germany: taxonomic and systematic implications Journal of Vertebrate Paleontology 22 43-48
[8]  
Bramwell CD.(1974)Inferring stratigraphic position of fossil vertebrates from the Niobrara Chalk of western Kansas Philosophical Transactions of the Royal Society, London (B) 267 503-581
[9]  
Whitfield G.R.(1997)The osteology and functional morphology of the Late Cretaceous pterosaur Anais da Academia Brasileira de Ciencias 69 83-87
[10]  
Campos D.A.(2000). Part I. General description of osteology Archaeopteryx 18 1-16
123