کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4724030 1639687 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tappania-bearing association of the Siberian platform: Biodiversity, stratigraphic position and geochronological constraints
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
Tappania-bearing association of the Siberian platform: Biodiversity, stratigraphic position and geochronological constraints
چکیده انگلیسی

A new fossil microbiota yielding eukaryotic Tappania is described from the Mesoproterozoic Kamo Group of the Central Angara Basin, Siberian Craton. The assemblage also includes Valeria, Satka, Lophosphaeridium, Pulvinosphaeridium, Miroedichia, Osculosphaera, Tasmanites, Obruchevella, Glomovertella, as well as branching and anastomosing filamentous microfossils of putative fungal affinities and peculiar short trichomes, that together substantially increase the biodiversity of the Tappania Association. Stratigraphic position and geochronological constraints indicate a relatively young Late Mesoproterozoic age of the Tappania-bearing sediments. There appears to be a continuity between the Tappania Association and the Neoproterozoic microbiota, the latter being firmly rooted in the Late Mesoproterozoic.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Precambrian Research - Volume 173, Issues 1–4, September 2009, Pages 137–145
نویسندگان
,