A new Cercis (Leguminosae) from the middle Miocene of Fujian, China. (2nd January 2022)

• Record Type: Journal Article
• Authors: Wang, Zixi; Shi, Gongle; Sun, Bainian; Jia, Hui; Dong, Chong; Yin, Sunxin; Wu, Xieting
• Is Part Of: Historical biology. Volume 34:Number 1(2022)
• Page Start: 94
• Page End: 101
• Publication Date: 2022-01-02
• Subjects: Leguminosae -- cercis -- fujian -- china -- middle Miocene; Paleobiology -- Periodicals; Biology -- Periodicals; Evolution -- Periodicals; Paleontology -- Periodicals; Biology -- Periodicals; Paleontology -- Periodicals; Evolution -- Periodicals; 560.5
• DOI: 10.1080/08912963.2021.1900170
• Languages: English
• ISSNs: 0891-2963

Abstract

ABSTRACT: Neogene plant fossils from low latitudes of China are critical for understanding the history of plant diversity and paleoenvironment in that region. Here we describe well-preserved Cercis fruit fossils from the Fotan Group (~14.7 Ma) in Fujian, southeastern China. Based on detailed morphological and anatomical comparisons with extant and fossil species, we refer to these fossils as Cercis zhangpuensis sp. nov. Cercis zhangpuensis, most similar to C. chinensis A.V. Bunge among extant species of the genus. The currently described species is the southmost fossil record of the genus in Asia. In addition, we have studied cuticle structures of Cercis pod fossils for the first time. The occurrence of Cercis fossils indicates that the genus existed in Fujian, China since the middle Miocene. Available fossil records indicate that Cercis firstly appeared in North America during the Eocene, then spread in Europe and Asia since the Oligocene, with its distribution attaining the peak in the Miocene. We conclude that East Asia may represent one of the major centres of diversification of Cercis in the Miocene.