A new Late Devonian genus with seed plant affinities
نویسندگان
چکیده
منابع مشابه
A Late Devonian Fertile Organ with Seed Plant Affinities from China
Seed plants underwent first major evolutionary radiation in the Late Devonian (Famennian), as evidenced by the numerous ovules described to date. However, the early pollen organs are underrepresented, so that their structure and evolution remain poorly known. Here we report a new taxon of pollen organ Placotheca minuta from the Late Devonian. The synangium consists of many basally and more or l...
متن کاملLatisemenia longshania, gen. et sp. nov., a new Late Devonian seed plant from China.
The earliest known ovules in the Late Devonian (Famennian) are borne terminally on fertile branches and are typically enclosed in a cupule. Among these ovules are some that have terete integumentary lobes with little or no fusion. Here, we report a new taxon, Latisemenia longshania, from the Famennian of South China, which bears cupulate ovules that are terminal as well as opposite on the ferti...
متن کاملAlborziphyllinae, A New Late Devonian Rugose Corals Subfamily
Members of the family Laccophyllidae are small, solitary rugose corals with stratigraphic ranges from Silurian to Permian. Among the laccophyllids, axial ends of major septa are united in an aulos and dissepiments may be absent or present. Minor septa can be contratingent and sometimes are small or in some genera are absent. Septa and aulos may be thick or thin. In this study, Famennian rugose...
متن کاملPollen Organ Telangiopsis sp. of Late Devonian Seed Plant and Associated Vegetative Frond
Pollen organ Telangiopsis sp., associated with but not attached to vegetative fronds, has been collected from the Upper Devonian (Famennian) Wutong Formation, Dongzhi County, Anhui Province, China. Fertile axes with terminal pollen organs are dichotomous for 2-4 times and may be proximally attached by fragmentary pinnules. Pollen organs are synangiate and borne on the top of a short stalk. Syna...
متن کاملalborziphyllinae, a new late devonian rugose corals subfamily
members of the family laccophyllidae are small, solitary rugose corals with stratigraphic ranges from silurian to permian. among the laccophyllids, axial ends of major septa are united in an aulos and dissepiments may be absent or present. minor septa can be contratingent and sometimes are small or in some genera are absent. septa and aulos may be thick or thin. in this study, famennian rugose ...
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ژورنال
عنوان ژورنال: BMC Evolutionary Biology
سال: 2015
ISSN: 1471-2148
DOI: 10.1186/s12862-015-0292-6