Permian/Triassic megaspores of Otynisporites (Fuglewicz) Karasev et Turnau, 2015: Diversity, botanical affinity, and stratigraphic significance

doi:10.1016/j.revpalbo.2024.105232

NIGPAS OpenIR

	Permian/Triassic megaspores of Otynisporites (Fuglewicz) Karasev et Turnau, 2015: Diversity, botanical affinity, and stratigraphic significance
通讯作者	Zavialova, Natalia([email protected])
	Zavialova, Natalia 1; Karasev, Eugeny 1,2; Schneebeli-Hermann, Elke 3; Li, Wenben 4
	2025-02-01
发表期刊	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
ISSN	0034-6667
卷号	333 页码:36
摘要	Megaspores of Otynisporites eotriassicus, O. tuberculatus, and O. maculosus from the latest Changhsingian-early Induan of the Moscow Basin of Russia, O. eotriassicus from the Induan of the Kap Stosch subbasin of East Greenland, and O.? tarimensis, and Otynisporites? sp. from the Middle Triassic of the Tarim Basin of China were studied using light, scanning and transmission electron microscopy. The general morphology and sporoderm ultrastructure of all specimens prove their affinity with heterosporous lycopsids, but they are unexpectedly variable in details of the sculpture and ultrastructure. Megaspores of Otynisporites? sp. and O.? tarimensis differ significantly from the other studied megaspores and probably were produced by a different heterosporous lycopsid. Three morphological groups are distinguished within O. eotriassicus. Multilamellated zones are found only in O. tuberculatus and (much less distinct) in O. maculosus, that leads to the necessity to re-evaluate the phylogenetic value of this character. Analysis of morphology, stratigraphic and geographic ranges of earlier reports of Otynisporites shows that confirmed findings are confined to the latest Changhsingian-Induan, with O. tuberculatus and O. maculosus sharing the same stratigraphic range as O. eotriassicus. The geographic distribution shows that Otynisporites-producing plants grew under a moderately warm climate, in the middle latitudes. A comparison with the composition of palynological assemblages from megaspore-containing deposits implies that parent plants of O. eotriassicus, O. tuberculatus, and O. maculosus more probably produced trilete cavate microspores, Lundbladispora might be a counterpart for O. eotriassicus, whereas parent plants of O.? tarimensis and Otynisporites? sp. more probably produced monolete microspores.
关键词	Megaspores SEM TEM Permian/Triassic boundary Stratigraphic marker Heterosporous lycopsids
DOI	10.1016/j.revpalbo.2024.105232
收录类别	SCI
语种	英语
关键词[WOS]	PERMIAN-TRIASSIC BOUNDARY ; SPORE WALL ULTRASTRUCTURE ; KAP STOSCH ; MASS EXTINCTION ; MADHYA-PRADESH ; PLEUROMEIA ; MORPHOLOGY ; SUCCESSION ; ANNALEPIS ; EVOLUTION
资助项目	RFBR[19-04-00498] ; Federal University for the state[FZSM-2023-0023] ; Swiss NSF[20021-135446/1]
WOS研究方向	Plant Sciences ; Paleontology
WOS类目	Plant Sciences ; Paleontology
WOS记录号	WOS:001367001900001
项目资助者	RFBR ; Federal University for the state ; Swiss NSF
出版者	ELSEVIER
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44624
专题	中国科学院南京地质古生物研究所
通讯作者	Zavialova, Natalia
作者单位	1.Russian Acad Sci, Borissiak Paleontol Inst, Moscow, Russia 2.Kazan Volga Reg Fed Univ, Kazan, Russia 3.Univ Zurich, Zurich, Switzerland 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Zavialova, Natalia,Karasev, Eugeny,Schneebeli-Hermann, Elke,et al. Permian/Triassic megaspores of Otynisporites (Fuglewicz) Karasev et Turnau, 2015: Diversity, botanical affinity, and stratigraphic significance[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2025,333:36.
APA	Zavialova, Natalia,Karasev, Eugeny,Schneebeli-Hermann, Elke,&Li, Wenben.(2025).Permian/Triassic megaspores of Otynisporites (Fuglewicz) Karasev et Turnau, 2015: Diversity, botanical affinity, and stratigraphic significance.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,333,36.
MLA	Zavialova, Natalia,et al."Permian/Triassic megaspores of Otynisporites (Fuglewicz) Karasev et Turnau, 2015: Diversity, botanical affinity, and stratigraphic significance".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 333(2025):36.