A new fossil record of Adiantum (Pteridaceae) from Oligocene of Qaidam Basin, Northwest China and its palaeoenvironmental implications

• Published in: Palaeoworld Vol. 34; no. 4; p. 100898
• Main Authors: Chen, Hong-Yu, Yang, Tao, Li, Ya, Uhl, Dieter, Han, Lei, Cai, Jia-Hao, Zhang, Li, Wang, Yong-Dong, Yan, De-Fei
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2025
• Subjects: Adiantum; fossil record; Oligocene; palaeoecology; Qaidam Basin; Adiantum; Oligocene; Qaidam Basin; fossil record; palaeoecology

Adiantum, a genus of leptosporangiate ferns, belonging to the Pteridaceae, is characterised by marginal sori, reflexed pseudoindusia, and dichotomous venation. As a large and widespread genus, Adiantum includes about 225 extant species and a nearly worldwide distribution, but its fossil record is ra...