Cedrelospermum tibeticum

Name

Cedrelospermum tibeticum

Rank

Species

Generic Name

[Genus] Cedrelospermum

Authors (Name)

Jia L.-B. Su T. Zhou Z.-K.  

Authors (Pub.)

Jia L.-B. Su T. Huang Y.-J. Wu F.-X. Deng T. Zhou Z.-K.  

Publication

First fossil record of Cedrelospermum (Ulmaceae) from the Qinghai-Tibetan Plateau: Implications for morphological evolution and biogeography [2018/6]

Journal

Journal of systematics and evolution

Annee/Jahrgang

2018

Issue

10.1111/jse.12435

Page number

3

Year

2018

Fossil Status

fruits

Stratigraphy

Chattian

Strat. comment

Dingqing Formation

Location

Shuanghu County, Tibet, China

Paleoregion

Eurasia (Tibet)

Data for Holotypus

Repository

Herbarium, Kunming Institute of Botany, Chinese Academy of Sciences, Beijing, China

Repository Number

KUNPC-XZDY2-101B

Num

Fig. 3A

Pub.

First fossil record of Cedrelospermum (Ulmaceae) from the Qinghai-Tibetan Plateau: Implications for morphological evolution and biogeography [2018/6]

Data for Paratypus

Repository

Herbarium, Kunming Institute of Botany, Chinese Academy of Sciences, Beijing, China

Repository Number

KUNPC-XZDY2-0105 (Fig. 3D), KUNPC-XZDY2-0107 (Fig. 3E)

Num

Fig. 3D, E

Pub.

First fossil record of Cedrelospermum (Ulmaceae) from the Qinghai-Tibetan Plateau: Implications for morphological evolution and biogeography [2018/6]

Diagnosis

Samara 15.2–20.2mm long and 4.7–8.1mm wide. Fruit body ovate, laterally adjoined by two wings. One wing prominent, vascularized with 8–13 subparallel veins, possessing a stigmatic area at the distal end; veins converging towards the stigmatic area, or occasionally minority veins dichotomizing near the apex of the primary wing and converging with the external-marginal vein of the primary wing. The other wing minute, sometimes vestigial, subtriangular, or falcate in shape, occasionally with venation.