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:ABF5D1ED-3CAF-4F0D-B275-356AD362A1D4 species
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Zosterophyllum xishanense

Zosterophyllum xishanense S.-G. Hao, J.-Z. Xue, De-M. Wang Int. J. Pl. Sci., 168(4): 480. May 2007
Name
Zosterophyllum xishanense
Rank
Species
Generic Name
[Genus] Zosterophyllum
Authors (Pub.)
Hao S.-G. Xue J.-Z. Wang D.-M.  
Publication
Zosterophyllum Penhallow around the Silurian‐Devonian Boundary of Northeastern Yunnan, China [2007/5]
Journal
International Journal of Plant Sciences
Volume
168
Issue
4
Page number
480
Year
2007
Fossil Status
stems (with sporangia)
Stratigraphy
Lochkovian
Strat. comment
Xiaxishancun Formation
Paleoregion
Cathaysia (South)
Data for Holotypus
Repository
Beijing University, Department of Geology, Beijing, China
Repository Number
PUH-QX02-5
Diagnosis
Plant small with a rhizomatous growth habit. Rhizome with repeated K- or H-shaped branching producing upward-directed fertile axes and downward-directed axes developing further K- or H-shaped branchings. Naked erect axes, 0.7–1.9 mm wide, with basal K- or H-shaped, upper isotomous branching and small protuberances. Spikes consisting of at least six to 10 sporangia, 7.8–14.2 mm long and 3.4–5.2 mm wide. Helically arranged sporangia generating roughly four vertical rows. Sporangia round, 2.2–3.5 mm wide, and 2.0–4.1 mm high, inserted at an acute angle by short stalk on axis. Stalks 1.3–1.6 mm long and 0.6–1.0 mm wide. Sporangia dehisce along a narrow border, extending along the convex margin of sporangium.

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