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:1205AE4D-A5CB-4BF9-B676-2D2B7664C00C species
Back

Yunia guangnania

Yunia guangnania S.-G. Hao, J.-Z. Xue Early Dev. Posongchong Fl. Yunnan 122. 2013
Name
Yunia guangnania
Rank
Species
Generic Name
[Genus] Yunia
Authors (Pub.)
Hao S.-G. Xue J.-Z.  
Publication
The Early Devonian Posongchong flora of Yunnan [2013]
Book
The Early Devonian Posongchong flora of Yunnan
Page number
122
Year
2013
Fossil Status
stems (with sporangia)
Stratigraphy
Pragian
Strat. comment
Posongchong Formation
Location
outcrop near Daliantang Village, about 9 km northeast of Guangnan County, Yunnan Province, China
Paleoregion
Cathaysia (South)
Data for Holotypus
Repository
Beijing University, Department of Geology, Beijing, China
Repository Number
PUH.09-Yun.3
Diagnosis
Axes 3.5-4.0 mm wide, isotomously branching at 30°-50°. Successive branches, 3.0-4.2 mm apart. Distal sterile axes, about 1.8-2.2 mm wide at the branching point and tapering distally. Fertile axes, at least 5 cm long and 2.2-2.7 mm wide at base, branched, and tapering distally to about 1.6 mm wide. Sporangia dorsiventrally flattened, elongateelliptical in face view, 5.0-8.3 mm long (average 6.7 mm), 2.2-4.8 mm wide (average 3.0 mm) and about 1 mm thick. Stalks, very short, less than 1 mm long and about 0.3 mm wide. Sporangia, scattered spirally, and borne at various angles along axis. Intervals between sporangia, 1.5-6.0 mm long. Dehiscence line, along a narrow peripheral rim.

Please login or register to comment on this