Yangquanoxylon miscellum

Name

Yangquanoxylon miscellum

Rank

Species

Generic Name

[Genus] Yangquanoxylon

Authors (Pub.)

Wan M. Yang W. He X.-Z. Zhou W.-M. Liu L.-J. Wang J.  

Publication

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 [2017/4]

Journal

Palaeogeography, Palaeoclimatology, Palaeoecology

Volume

479

Page number

117

Year

2017

Fossil Status

stems (wood)

Stratigraphy

Cisuralian

Strat. comment

Taiyuan Formation

Location

Yangquan City, Shanxi Province, China

Paleoregion

Cathaysia (Sino-Korea)

Data for Holotypus

Repository

Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China

Repository Number

PB 22284, and the slides PB22284–1 to PB 22284–21

Num

figs 3-5

Pub.

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 [2017/4]

Diagnosis

Gymnospermous secondary xylem pycnoxylic and homoxyleous, without axial resin channels and axial parenchyma. Tracheids circular to oval in cross section, with uniseriate to triseriate, circular, oval, hexagonal, or slightly flattened bordered pits on radial walls. Scalariform bordered pits occasionally present. Uniseriate radial tracheid pitting isolated, contiguous, or separated in groups of 2–8. Multiseriate radial tracheid pitting commonly alternated, occasionally opposite. Prominently oblique and slit-like pores present on radial tracheid pits. Homogeneous rays commonly uniseriate, rarely biseriate, 1–16 cells high. Each cross-field with 1–6, circular bordered pits with oblique elliptical pores, or simple, oval to oblate pits.