ON THE CERVICAL-VERTEBRAE OF THE PTERODACTYLOIDEA (REPTILIA, ARCHOSAURIA)
ON THE CERVICAL-VERTEBRAE OF THE PTERODACTYLOIDEA (REPTILIA, ARCHOSAURIA)
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DOI:
10.1111/j.1096-3642.1986.tb02249.x
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发表时间:
1986-12-01
影响因子:
2.8
通讯作者:
HOWSE, SCB
中科院分区:
文献类型:
--
作者:
HOWSE, SCB
Within the Pterodactyloidea, the cervical vertebrae show considerable variation. These elements are also sufficiently common and contain enough anatomical information to make them taxonomically valuable. A survey of these vertebrae concludes that most known pterodactyloids fall into two groups: long-necked forms with attenuated cervical vertebrae that process low neural spines, and tall-spinded forms that possess relatively short neck vertebrae with tall neural spines. These two groups may represent natural taxonomic units. However, this is by no means conclusive and can only be tested by the study of other regions of pterodactyloid skeletons.