Asclepiadospermum marginatum C.Del Rio, T.Su et Z.K.Zhou in Del Rio, Wang, Liu, Liang, Spicer, Wu, Zhou & Su
Plant Fossil Names Registry Number: PFN000893
Act LSID: urn:lsid:plantfossilnames.org:act:893
Genus: Asclepiadospermum C.Del Rio, T.Su et Z.K.Zhou in Del Rio, Wang, Liu, Liang, Spicer, Wu, Zhou & Su
Reference: Del Rio, C., Wang, T. X., Liu, J., Liang, S. Q., Spicer, R. A., Wu, F. X., Zhou, Z. K. & Su, T. (2020): Asclepiadospermum gen. nov., the earliest fossil record of Asclepiadoideae (Apocynaceae) from the early Eocene of central Qinghai-Tibetan Plateau, and its biogeographic implications. – American Journal of Botany 107(1): 126–138.
Page of description: 129
Illustrations or figures: Fig. 2
Name is type taxon for
Holotype XZBGJL5-0432, Palaeoecological Laboratory, Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences (CAS), Mengla, Yunnan, China
Figures: Fig. 2: 1, 2
Note: Paratype: XZBGJL5-0116 (Fig. 2: 3).
Seed pear-shaped, tapering rapidly toward a blunt to slightly round apex with a small bump, and rounded at the base; central part oval and smooth,
surrounded by a wide margin; a straight median line corresponding to the trace left by the raphe runs from the apex to the center of the seed. Cells are polygonal and irregularly arranged.
The specific epithet marginatum refers to the exceptionally wide margin that characterizes this species.
The Lower Eocene Niubao Formation
Jianglang village, Bangor County, Central Qinghai-Tibetan Plateau (31°37.5′N, 90°1.5′E)
Plant fossil remain
macro- and meso-fossils-embryophytes except wood