Hemitrapa alpina Su et Z.K.Zhou in Su, Li, Tang, Huang, Li, Deng & Zhou

Plant Fossil Names Registry Number: PFN000436

Act LSID: urn:lsid:plantfossilnames.org:act:436

Authors: T. Su & Z. K. Zhou

Rank: species

Reference: Su, T., Li, S. F., Tang, H., Huang, J., Li, S. H., Deng, C. L. & Zhou, Z. K. (2018): Hemitrapa Miki (Lythraceae) from the earliest Oligocene of southeastern Qinghai-Tibetan Plateau and its phytogeographic implications. – Review of Palaeobotany and Palynology 257: 57–63.

Page of description: 59

Illustrations or figures: pl. II


Holotype KUNPC XZKJ4-0006, The Herbarium of Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
Figures: pl. II, fig. 6

Note: Paratypes: KUNPC XZKJ4-0001-0005 (Plate II, 1–5), KUNPC XZKJ4-0007 (Plate II, 7).

Original diagnosis/description

Fruits elongate or fusiform in shape (Plate II, 1–7). The fruit head not well defined, with hairs at the top of the neck (Plate II, 1, 2). Longitudinal ribs along the body of the fruit (Plate II, 2). The base of the fruit rounded and sessile (Plate II, 1–7). Two pairs of arms at the base of the fruit extending upward (Plate II, 2, 6, 8); one pair of arms shorter than the other (Plate II, 2).


The specific epithet “alpina” refers to the collection site of these fossils are from a high mountain, named Mt. Lawula in Markam County, which located on southeastern Qinghai-Tibetan Plateau.


Paleogene, Oligocene
Earliest Oligocene


Lawula Formation, Kajun village, Markam County, southeastern Qinghai-Tibetan Plateau

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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