Plant Systematics and Evolution

, Volume 299, Issue 3, pp 643–658

A new species of Carpinus (Betulaceae) from the Pliocene of Yunnan Province, China

  • Jing Dai
  • Bainian Sun
  • Sanping Xie
  • Zhicheng Lin
  • Jingyu Wu
  • Kequn Dao
Original Article

DOI: 10.1007/s00606-012-0750-1

Cite this article as:
Dai, J., Sun, B., Xie, S. et al. Plant Syst Evol (2013) 299: 643. doi:10.1007/s00606-012-0750-1

Abstract

Macrofossils of Carpinus have been widely reported from the Cenozoic of the Northern Hemisphere. However, the leaf cuticules of the genus have rarely been described. A new species, named Carpinustengchongensis Dai et B.N. Sun, sp. nov., is identified based on 13 leaf fossils, collected from the late Pliocene Mangbang Formation, Tengchong County of Yunnan Province, China. The important characters of the fossil are its oblong-ovate leaf shape, obliquely cordate base, doubly serrulate margin, straight and moderately thick primary vein, pinnate secondary veins, percurrent tertiary veins, orthogonally reticulate areoles, absence of veinlets, anomocytic stomata with double-layered stomatal rim, well-formed T-pieces and trichome bases, which indicates an affinity within the genus Carpinus section Carpinus subsection Monbeigianae, especially with C. tsaiana. Carpinus fossils were present from the Eocene to Pliocene with disjunctive distribution in the North Temperate Zone, which broadly reflected the present distribution pattern and probably demonstrates the tolerance of Carpinus to environmental change.

Keywords

CarpinusCuticular featuresPlioceneWestern Yunnan

Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  • Jing Dai
    • 1
    • 2
  • Bainian Sun
    • 1
  • Sanping Xie
    • 1
  • Zhicheng Lin
    • 1
    • 3
  • Jingyu Wu
    • 1
    • 4
  • Kequn Dao
    • 1
  1. 1.Key Laboratory of Western China’s Environmental Systems of the Ministry of Education and School of Earth ScienceLanzhou UniversityLanzhouChina
  2. 2.College of Earth ScienceYunnan UniversityKunmingChina
  3. 3.School of Petroleum and Natural Gas EngineeringChongqing University of Science and TechnologyChongqingChina
  4. 4.State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences)NanjingChina