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 © 2014-2024

IDNAME urn:idName:ifpni.org:species:41B1B631-04FA-16FA-114D-6F978825BFAF species
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Glenrosa nanjingensis

Glenrosa nanjingensis Z.-Y. Zhou, Thév., Barale, G. Guignard Palaeontology, 43(3): 562. Sep 2000
Name
Glenrosa nanjingensis
Rank
Species
Generic Name
[Genus] Glenrosa
Authors (Pub.)
Zhou Z.-Y. Thévenard F. Barale G. Guignard G.  
Publication
A new xeromorphic conifer from the Cretaceous of East China [2000/9]
Journal
Palaeontology
Volume
43
Issue
3
Page number
562
Year
2000
Fossil Status
leafy twigs
Stratigraphy
Lower Cretaceous
Strat. comment
Gecun Formation
Location
Zhoujiawan, Qiya Town, eastern outskirts of Nanjing, Jiangsu Province, East China
Paleoregion
Eurasia (China)
Data for Holotypus
Repository
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China
Repository Number
PB17456
Diagnosis
Shoots bearing helically arranged leaves. Leaves thick, scale-like, adpressed, slightly imbricate, mostly elliptical in shape and 1´5±2mm long and 1±1´5mm wide. Free apex short, usually less than one ®fth of total length. Leaf apex obtuse or obtusely rounded. Leaf hypostomatic. Epidermal cells polygonal, rectangular or isodiametric. Hypodermal cells below abaxial surface elongate with acute ends. Stomatal chambers mostly ellipsoidal and longitudinal, sparse, irregularly distributed, usually about 10±12 per leaf. More than one stoma sunken deeply in chamber, concealed under short, robust papillae arising from subsidiary and surrounding epidermal cells. Cuticles of both surfaces consisting of an outer, mainly amorphous cuticle proper and an inner, ®brillate cuticular layer. A peripheral polylamellate zone and a basal amorphous zone usually present. Cuticle of hypodermis composed only of cuticular layer.

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