Yangquanoxylon Miscellum gen. nov. et sp. nov., A Gymnospermous Wood from the Upper Pennsylvanian-Lower Permian Taiyuan Formation of Yangquan City, Shanxi Province, with Reference to the Palaeoclimate in North China

Abstract

A silicified gymnospermous wood, Yangquanoxylon miscellum gen. nov. et sp. nov., is described from the Upper Pennsylvanian-lower Permian Taiyuan Formation, Yangquan City, Shanxi Province, North China. The pycnoxylic wood is composed of thick-walled tracheids and thin-walled rays. It is characterized by mixed radial tracheid pits, uniseriate and homogeneous rays, occurrence of scalariform radial pitting, and various types of cross-field pitting. There are four types of cross-field pitting in Y. miscellum gen. nov. et sp. nov., including simple, taxodioid, phyllocladoid, and araucarioid. The absence of growth rings within fossil woods described here and reported previously from North China suggests a humid climate with minimal precipitation variations during the Late Pennsylvanian-early Permian.

Department(s)

Geosciences and Geological and Petroleum Engineering

Keywords and Phrases

Cathaysia; Cross-Field Pitting; False Ring; Fossil Wood; Palaeoclimate

Geographic Coverage

North China

Time Period

Pennsylvanian
Permian

International Standard Serial Number (ISSN)

0031-0182

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Elsevier B.V., All rights reserved.

Publication Date

01 Aug 2017

Link to Full Text

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