کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4747036 1642071 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Early Cretaceous woods of Figueira da Foz Formation in western Portugal: Palaeoenviromental, palaeoclimatic and palaeobiogeographic insights
ترجمه فارسی عنوان
جنگل های کرتاسه ابتدایی شکل گیری فیگویرا دا فوز در پرتغال پرتغال: بینایی پالئئونوورثالال، پائئو کلامی و پالای بیوگرافی
کلمات کلیدی
مخروط ها چوب فسیلی، پروتوکوپرسینوکسیلن، پالای بیوگرافی پائئوسکلیمات، کشور پرتغال
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فسیل شناسی
چکیده انگلیسی


• Report the occurrence of the genus Protocupressinoxylon Eckhold in Portugal.
• The new finding is out of the usual places of the Iberian.
• The new fossil suggests a paleoclimate without marked seasonality.

Fossil woods of the genus Protocupressinoxylon Eckhold are reported from the Lower Cretaceous (upper Aptian – lower Albian) of Casal do Estortiga, near Santa Catarina da Serra, Lusitanian Basin, western Portugal. The three silicified specimens show up to 7-μm-thick-walled, rounded to polygonal tracheids; homogeneous rays, separated by 2–8 cell rows (in average 3–4); normal or traumatic, diffuse axial parenchyma with abundant cell content; and no resin canal but abundant resin content. The cupressoid conifers dominated the border between the temperate wet tropical belt and the arid mid-latitude belt. The indistinct growth rings suggest no marked seasonality in western Portugal, as it was also suggested in the Iberian Mountain System. Several other climate proxies of the trunk-bearing unit confirm that the wood was deposited under a warm and wet climate. During the Early Cretaceous, the Iberian Peninsula was a connecting bridge between Laurasia and northern Gondwana, acting as a large regional ecotone. Although the Iberian Peninsula was dominated by a Laurasian component, climatic differences between the two regions were driving forces behind biogeographical relationships in the western Tethys.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cretaceous Research - Volume 51, September 2014, Pages 112–120
نویسندگان
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