کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4750840 | 1642549 | 2010 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The revised generic diagnosis, specific description and synonymy of the Late Cretaceous Rosannia manika from Alberta, Canada: Its phytogeography and affinity with family Lactoridaceae
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فسیل شناسی
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چکیده انگلیسی
The genus Rosannia was erroneously diagnosed as a monad in Srivastava (1968a). It is re-diagnosed and its type species Rosannia manika is redescribed. The lost holotype is replaced by the surviving isotype as a lectotype here. Epitypes are designated and illustrated in this study to explain the morphology of R. manika in detail. Rosannia is an obligate ana-ulcerate tetrad with calymmate exine and granulose supratectal ornamentation. Its worldwide occurrence ranges from the Turonian to the Miocene. Lactoripollenites Zavada and Benson is a junior synonym of Rosannia. Pollen of extant Lactoris fernandeziana Phil. has a close morphological affinity with Rosannia. Lactoris fernandeziana of the monotypic family Lactoridaceae is endemic to Robinson Crusoe Island (formerly Masatierra Island) in the Juan Fernández Archipelago, Chile.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Review of Palaeobotany and Palynology - Volume 159, Issues 1â2, February 2010, Pages 2-13
Journal: Review of Palaeobotany and Palynology - Volume 159, Issues 1â2, February 2010, Pages 2-13
نویسندگان
Satish K. Srivastava, Dennis R. Braman,