Filmy Ferns (Hymenophyllaceae) and Associated Spike-Mosses (Selaginellaceae) from the Mid-Cretaceous Kachin Amber, Myanmar

doi:10.3390/biology11111629

	Filmy Ferns (Hymenophyllaceae) and Associated Spike-Mosses (Selaginellaceae) from the Mid-Cretaceous Kachin Amber, Myanmar
	Li, Ya 3,4; Wang, Yong-Dong 3,4; Nosova, Natalya 2; Lu, Ning 3,4; Xu, Yuan-Yuan 1,3,4
刊名	BIOLOGY-BASEL
	2022-11-01
卷号	11 期号:11 页码:16
关键词	ferns fossils Hymenophyllites Selaginella
DOI	10.3390/biology11111629
通讯作者	Wang, Yong-Dong(ydwang@nigpas.ac.cn)
英文摘要	Simple Summary Three new species of filmy ferns are described in mid-Cretaceous Kachin amber, which represent the first fossil record of Hymenophyllaceae from tropical Asia. These filmy ferns and the syninclusions of spike-mosses greatly expand the diversity of the cryptogams in Kachin amber and provide additional evidence regarding the paleoenvironment. Together with other contemporaneous findings, the present fossils indicate that Hymenophyllaceae have already accumulated some notable diversity in the Cretaceous. Filmy ferns (Hymenophyllaceae) are the most diverse lineage of the early-diverging leptosporangiate ferns with ca. 430 species widely distributed around the world but with the highest diversity in the humid tropics. However, their fossil record is scarce because of the low preservation potential of the delicate, membranous laminae. So far, no Hymenophyllaceae fossils have been reported from tropical Asia. Here, we describe some fern remains and their syninclusions (spike-mosses) in four pieces of Kachin amber from the mid-Cretaceous of Hukawng Valley, Northern Myanmar, as Hymenophyllites angustus sp. nov., H. kachinensis sp. nov., H. setosus sp. nov. (Hymenophyllaceae) and Selaginella alata sp. nov. (Selaginellaceae), respectively. These fern remains are assigned to Hymenophyllaceae based on the filmy, one-cell thick, decompound pinnatifid laminae and dichotomous venation. They represent the first fossil record of Hymenophyllaceae in tropical Asia. The growth habits of these ferns and associated spike-mosses and their implication for paleoenvironment are discussed. Our study expands the diversity of the cryptogams in mid-Cretaceous Kachin amber. Together with other contemporaneous findings, the present fossils indicate that Hymenophyllaceae have already accumulated some notable diversity in the Cretaceous.
WOS关键词	GENUS TRICHOMANES HYMENOPHYLLACEAE ; CRETACEOUS AMBER ; LEAFY LIVERWORT ; BURMESE AMBER ; SP. NOV. ; PORELLALES ; FOSSIL ; JUNGERMANNIOPSIDA ; POLYPODIALES ; PHYLOGENY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
语种	英语
出版者	MDPI
WOS记录号	WOS:000894325600001
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/41526]
专题	中国科学院南京地质古生物研究所
通讯作者	Wang, Yong-Dong
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Russian Acad Sci, Komarov Bot Inst, Prof Popova Str 2, St Petersburg 197376, Russia 3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironment, Nanjing 210008, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Li, Ya,Wang, Yong-Dong,Nosova, Natalya,et al. Filmy Ferns (Hymenophyllaceae) and Associated Spike-Mosses (Selaginellaceae) from the Mid-Cretaceous Kachin Amber, Myanmar[J]. BIOLOGY-BASEL,2022,11(11):16.
APA	Li, Ya,Wang, Yong-Dong,Nosova, Natalya,Lu, Ning,&Xu, Yuan-Yuan.(2022).Filmy Ferns (Hymenophyllaceae) and Associated Spike-Mosses (Selaginellaceae) from the Mid-Cretaceous Kachin Amber, Myanmar.BIOLOGY-BASEL,11(11),16.
MLA	Li, Ya,et al."Filmy Ferns (Hymenophyllaceae) and Associated Spike-Mosses (Selaginellaceae) from the Mid-Cretaceous Kachin Amber, Myanmar".BIOLOGY-BASEL 11.11(2022):16.