Ginkgo cuneifolia

Name

Ginkgo cuneifolia

Rank

Species

Generic Name

[Genus] Ginkgo

Authors (Name)

Tan X. Dilcher D. L. Wang H.-S. Sun C.-L.  

Authors (Pub.)

Sun C.-L. Tan X. Dilcher D. L. Wang H.-S. Na Y.-L. Li T. Li Y.-F.  

Publication

Middle Jurassic Ginkgo leaves from the Daohugou area, Inner Mongolia, China and their implication for palaeo-CO2 reconstruction [2018/9]

Journal

Palaeoworld

Volume

27

Issue

4

Page number

471

Year

2018

Fossil Status

foliage

Stratigraphy

Middle Jurassic

Strat. comment

Jiulongshan Formation

Location

Daohugou Village, Ningcheng County, Inner Mongolia, China

Paleoregion

Eurasia (China)

Data for Holotypus

Repository

Research Center of Palaeontology and Stratigraphy, Jilin University, Changchun, China

Repository Number

RCPS-DHG039

Num

Fig. 6a

Pub.

Middle Jurassic Ginkgo leaves from the Daohugou area, Inner Mongolia, China and their implication for palaeo-CO2 reconstruction [2018/9]

Data for Paratypus

Repository

Research Center of Palaeontology and Stratigraphy, Jilin University, Changchun, China

Repository Number

RCPS-DHG032

Num

Fig. 6b

Pub.

Middle Jurassic Ginkgo leaves from the Daohugou area, Inner Mongolia, China and their implication for palaeo-CO2 reconstruction [2018/9]

Diagnosis

Leaves fan-shaped with a narrow basal angle only about 45◦. Lamina radius 25–30 mm. Four lobes, obovate with rounded or obtuse rounded apices; 18 veins per cm in the broad-est part of the lobe. Resin bodies absent.Leaf sparsely amphistomatic. Upper cuticle with very few scattered stomata; the outer surface of the upper cuticle with an uneven thickening. Lower cuticle consisting of costal zones with elongated obliquely angled cells and intercostal zones with 6–7 rowsof stomatal apparatus. Stomata haplocheilic, densely and randomly arranged. Subsidiary cells 5–6, with papillae on the outersurface.