کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6448603 1360603 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Are the new Ediacaran Doushantuo embryo-like fossils early metazoans? A reply
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فسیل شناسی
پیش نمایش صفحه اول مقاله
Are the new Ediacaran Doushantuo embryo-like fossils early metazoans? A reply
چکیده انگلیسی
Chen et al. (2014) described a suite of one-celled, Parapandorina-stage, Megaclonophycus-stage (some with dyads and tetrads), and matryoshka-stage fossils from the Doushantuo Formation, and interpreted them as representing a sequence of ontogenetic stages of the animal embryo-like fossil Megasphaera. Tang (2015) argues that the matryoshkas might have been parasites or symbionts, rather than developmental products of dyads and tetrads in Megaclonophycus-stage fossils. Assessing Tang's (2015) arguments against available evidence, we conclude that the matryoshkas likely represent an ontogenetic stage of Megasphaera. As such, they have the potential to illuminate the developmental biology, life cycle, and phylogenetic affinity of the enigmatic fossil Megasphaera.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Palaeoworld - Volume 25, Issue 1, January 2016, Pages 132-134
نویسندگان
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