Comptonia hirsuta De-Shuang Ji et Xiao in Ji, Xiao, Guo, Li, Wu, Liang, Wang, Xia, Sun & Fu

Plant Fossil Names Registry Number: PFN003007


Authors: D. S. Ji & L. Xiao

Rank: species

Reference: Ji, D. S., Xiao, L., Guo, L. Y., Li, X. C., Wu, Z. L., Liang, J. Q., Wang, M. T., Xia, X. Y., Sun, N. & Fu, C. F. (2022): A New Species of Comptonia (Myricaceae) from the Early Miocene of Central Inner Mongolia, China, and Phytogeographic History of Sweet–Fern. – Biology 11: 1326 (16).

Page of description: 3

Illustrations or figures: fig. 2 a, c, d, g, h


Holotype ELS-16-301AB, Geological Museum of Chang'an University
Figures: fig. 2 A,C,G

Note: Paratypes: ELS-16-216 (fig. 2D, H), ELS-16-464 (fig. 2B), ELS-16-435 (fig. 2E), ELS-16-400 (fig. 2F, L).

Original diagnosis/description

Laminas oblanceolate to mostly narrow elliptical; lobes pinnatisect; dense simple trichomes with unicellular base or two, four, six, eight unicellular fused base; and peltate glandular trichomes on both the adaxial cuticle and the abaxial cuticle.


The specific epithet is based on the evident epidermal features of the fossil leaves, meaning abundant trichomes.


Neogene, Miocene
The Hannuoba Formation, early Miocene.


Yangjuanwan Village, Zhuozi County, Inner Mongolia, North China.

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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