Gansufructus saligna B.Du in Du, Zhang, Sun, Li, Zhang, Yan, Xie & Wu

Plant Fossil Names Registry Number: PFN001822

Act LSID: urn:lsid:plantfossilnames.org:act:1822

Author: B. Du

Rank: species

Genus: Gansufructus B.Du in Du, Zhang, Sun, Li, Zhang, Yan, Xie & Wu

Reference: Du, B., Zhang, M., Sun, B., Li, A., Zhang, J., Yan, D., Xie, S. & Wu, J. (2021): An exceptionally well-preserved herbaceous eudicot from the Early Cretaceous (late Aptian–early Albian) of Northwest China. – National Science Review 8(12): nwab084 (12 pp.).

Page of description: 2

Illustrations or figures: figs 2–4

Name is type for

Gansufructus B.Du in Du, Zhang, Sun, Li, Zhang, Yan, Xie & Wu 2021

Types

Holotype JQ-2018-01A, B, The Institute of Palaeontology and Stratigraphy, Lanzhou University, Gansu Province, China
Figures: fig. 2A, B

Note: Holotype is fomed by part and counterpart.

Paratypes: JQ-2017-01(A, B), JQ-2018-02(A, B), JQ-2018-03(A, B), JQ-2019-01(A, B), JQ-2020-01 and JQ-2020-02 (Fig. 2C and D and Fig. 3), housed in Paleontological Laboratory of the School of Earth Sciences, Lanzhou University.


Repository as: Paleontological Laboratory of the School of Earth Sciences, Lanzhou University

Original diagnosis/description

Plant herbaceous, erect. Main axis slender, straight or slightly curved with alternating secondary axes. Leaves simple, elongated oval, lanceolate or ovoid-lanceolate shaped and alternately arranged on the branches. Leaf margin entire. Leaf apex acute. Leaf base decurrent and estipulate with short petiole. Leaf venation poorly organized, with pinnate lateral veins and reticulate tertiary veins. Infructescence open and paniculate. Ultimate branches bearing one to three terminal fruits. Gynoecium superior, basally syncarpous with four carpels fused or appressed proximally along their ventral surface for about half of their length. Carpels whorled, each in the axil of a small persistent tepal. Each carpel enclosing three to five anatropous ovules/seeds borne on linear placentae along the ventral suture. Seed oval or reniform.

Etymology

saligna, from the willow-shaped leaves (saligna, Latin for ‘willow’).

Stratigraphy

Cretaceous, Lower Cretaceous
uppermost part of the Zhonggou Formation, Hanxia Section; late Aptian–early Albian

Locality

China
Laojumiao of Jiuquan City, western Gansu Province, Northwest China

Plant fossil remain

macro- and meso-fossils-embryophytes except wood

Comments

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