A marattialean fern, Scolecopteris libera n. sp., from the Asselian (Permian) of Inner Mongolia, China

被引：20
|
作者：
Li, Dan-Dan [1 ,2 ]
Wang, Jun [1 ,3 ,4 ,5 ]
Wan, Shan [1 ,2 ]
Psenicka, Josef [1 ,6 ]
Zhou, Wei-Ming [1 ,3 ,4 ]
Bek, Jiri [7 ]
Votockova-Frojdova, Jana [7 ]
机构：
[1] Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
[2] Univ Sci & Technol China, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China
[3] Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
[4] Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
[5] Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
[6] West Bohemian Museum Plzen, Ctr Palaeobiodivers, Kopeckeho Sady 2, Plzen 30100 3, Czech Republic
[7] Acad Sci Czech Republ, Inst Geol, Dept Palaeobiol & Palaeoecol, Vvi, Rozvojova 269, Prague 16500 6, Czech Republic
来源：
PALAEOWORLD | 2019年 / 28卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Scolecopteris libera n. sp; Marattiales; in situ spores; Wuda; Permian; Micro-CT; PERMINERALIZED MARATTIALES; PALEOZOIC MARATTIALEANS; VEGETATIONAL POMPEII; GEN-N; SPORES; PLANTS; BASIN;
D O I：
10.1016/j.palwor.2019.05.002
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
Scolecopteris libera n. sp. is established on partial three-dimensionally preserved materials containing both sterile and fertile fronds collected from the volcanic tuff at the top of the Taiyuan Formation at the Wuda Coalfield, Inner Mongolia, China. It is characterized by tripinnate fronds with rachises over 200 mm in diameter; and long lanceolate or falciform pinnules with thick veins. Pinnules are of the pecopterid-type, with those at the base of the ultimate pinnae usually divided into small lobes. Eight to twelve circular synangia are arranged in two rows along the midvein. Synangia are borne on a short pedicel attached to the middle of lateral veins. A synangium is composed of 7-10 fusiform exannulate sporangia with pointed apices. The sporangia are free among each other beyond the base of synangia. In situ microspores of the Cyclogranisporites leopoldii type differ from all other in situ Paleozoic marattialean spores. (C) 2019 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：487 / 507
页数：21
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