کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10122068 | 1642592 | 2005 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Morphology, anatomy, and upland ecology of large cordaitalean trees from the Middle Pennsylvanian of Newfoundland
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فسیل شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Morphology, anatomy, and upland ecology of large cordaitalean trees from the Middle Pennsylvanian of Newfoundland Morphology, anatomy, and upland ecology of large cordaitalean trees from the Middle Pennsylvanian of Newfoundland](/preview/png/10122068.png)
چکیده انگلیسی
We describe the morphology and anatomy of large cordaitalean trees, preserved in Pennsylvanian (Bolsovian) alluvial deposits in southwest Newfoundland. Remains include more than one hundred calcite-permineralized stumps, trunks, and branches, including the largest cordaitalean trunk ever discovered, as well as common adpressed leaves. Reproductive organs are not preserved. We propose a sterile reconstruction of this tree based on directly attached organs and anatomical similarities between isolated, but facies-associated, organs. At â¤Â 48.5 m high, mature cordaitaleans were the tallest trees in the Pennsylvanian tropical zone, and consisted of a straight, unbranched trunk topped by a dark, shading canopy, similar in gross morphology to extant araucarian conifers. A comprehensive review of the taphonomic occurrences of these large cordaitalean remains suggests that they grew in alluvial fan and extrabasinal terrains across Euramerica, and represent the earliest widespread upland forests.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Review of Palaeobotany and Palynology - Volume 135, Issues 3â4, July 2005, Pages 223-243
Journal: Review of Palaeobotany and Palynology - Volume 135, Issues 3â4, July 2005, Pages 223-243
نویسندگان
Howard J. Falcon-Lang, Arden R. Bashforth,