The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2022

IDNAME urn:idName:ifpni.org:species:B98DE6A9-4C19-DC48-91A0-EB0ED4B839F3 species
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Nanshanopteris nervosa

Nanshanopteris nervosa M. Wan, Jun Wang bis Rev. Palaeobot. Palynol., 219: 42. 3 Apr 2015
Name
Nanshanopteris nervosa
Rank
Species
Generic Name
[Genus] Nanshanopteris
Authors (Pub.)
Wan M. Wang J.  
Publication
Nanshanopteris nervosa gen. et sp. nov., a glenopterid foliage from the Changhsingian Sunan Formation in Yumen, western China [2015/4]
Journal
Review of Palaeobotany and Palynology
Volume
219
Page number
42
Year
2015
Fossil Status
foliage
Stratigraphy
Changhsingian
Strat. comment
Sunan Formation
Location
Qingtoushan, Yumen City, Gansu Province, China
Paleoregion
Cathaysia (North)
Data for Holotypus
Repository
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China
Repository Number
PB 21661; slides 21661-1-B, PB 21661-2-A, PB, 21661-2-A
Data for Paratypus
Repository
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China
Repository Number
PB 21662; slides PB 21662-1-A, 21662-1-B
Diagnosis
Frond pinnate, monopodial, obcordate. Pinnules suboppositely to oppositely attached to the rachis, auriculate to lingulate with a broadly rounded apex, sometimes decurrent, entiremargined. Rachis robust, longitudinally striated. Veination dense, most veins entering the pinnule in the basiscopic part and then bifurcating two to four times. Upper epidermis thicker than the lower one. Pinnules amphistomatic. Stomatal apparatuses monocyclic to incomplete dicyclic, occurring in the intercostal areas only. Stomatal pores and guard cells deeply sunken. Papillae present on normal and subsidiary cells of the lower pinnule surface. In the upper epidermis, papillae present on subsidiary cells only. On both lower and upper epidermis papillae of subsidiary cells usually overarching the stomatal pores.
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