کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5788008 | 1642046 | 2017 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A New Fossil Amiidae (Holostei: Halecomorphi) from the Upper Cretaceous Adamantina Formation, Southeastern Brazil, with comments on western Gondwana amiids
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فسیل شناسی
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چکیده انگلیسی
Amiid remains from the Upper Cretaceous (Turonian-Santonian) Adamantina Formation, Bauru Basin, Southeastern Brazil are described. The material is known only from fragmented isolated jaw bones (maxilla and dentary), a vertebral centrum, and isolated teeth and represents the first halecomorph described from this stratigraphical unit. Characters of the maxilla and the shape of the teeth, permit referral to the subfamily Vidalaminae. The Adamantina material differs from material described from the slightly younger MarÃlia Formation (Maastrichthian) of the same Bauru Basin, by the presence of longitudinal ridges on the surface of the maxilla as well as by tooth sockets of equal size. These two records are the unique indisputable occurrences of freshwater vidalamins and confirm the presence of this clade within the incipient Neotropical ichthyofauna.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cretaceous Research - Volume 77, September 2017, Pages 39-43
Journal: Cretaceous Research - Volume 77, September 2017, Pages 39-43
نویسندگان
Paulo M. Brito, William R. Nava, Agustin G. Martinelli,