کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4749917 1360624 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Devonian (Eifelian) disparid crinoids from the Zeravashan range, southern Tien Shan, Uzbekistan
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فسیل شناسی
پیش نمایش صفحه اول مقاله
Devonian (Eifelian) disparid crinoids from the Zeravashan range, southern Tien Shan, Uzbekistan
چکیده انگلیسی

No Devonian disparid crinoids have been described from Uzbekistan, although parahexacrinid thecae and assorted columnals have been described in several papers in the past 50 years. Discovery of a cup of Pisocrinus and a thecae of Haplocrinites are the first of these genera known from Uzbekistan. The stratigraphic range of Haplocrinites is revised to be late Early Devonian (Emsian) to Early Carboniferous (Tournaisian) because Silurian species assigned to the genus are based on loose ossicles that morphologically do not belong to the genus. The paleogeographic ranges of Pisocrinus and Haplocrinites are extended into Uzbekistan. Haplocrinites uzbekistanensis n. sp. is described.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Palaeoworld - Volume 18, Issue 4, December 2009, Pages 235–240
نویسندگان
, ,