کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4726760 1356345 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
First occurrence of a new Ocruranus-like helcionelloid mollusc from the lower Cambrian of East Gondwana
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
پیش نمایش صفحه اول مقاله
First occurrence of a new Ocruranus-like helcionelloid mollusc from the lower Cambrian of East Gondwana
چکیده انگلیسی

A new cap-shaped mollusc, Emargimantus angulatus gen. et sp. nov. is described from the Arrowie Basin of South Australia. The new species is closely comparable to mollusc species from South China and North-East Greenland previously described under the generic name Ocruranus Liu, a genus recently reinterpreted as a multiplated, possibly polyplacophoran mollusc. Emargimantus is interpreted as a univalved helcionelloid mollusc and differs from Ocruranus in both morphology and function. E. angulatus represents the first discovery of Ocruranus-like helcionelloids in the lower Cambrian of eastern Gondwana and demonstrates that these molluscs had a global distribution during the early Cambrian.

Figure optionsDownload as PowerPoint slideHighlights
► A new species from the lower Cambrian succession of South Australia is included in a new genus — Emargimantus.
► Univalved helcionelloid mollusc is quite distinct from the polyplacophoran Ocruranus.
► First find of this type of mollusc from lower Cambrian strata of Gondwana.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gondwana Research - Volume 22, Issue 1, July 2012, Pages 256–261
نویسندگان
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