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:genus:E47EC022-271E-4E6F-94BA-4F2B01FC9AD6 genus
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Placotheca

Genus Placotheca De-M. Wang, L. Liu, Y. Guo, J.-Z. Xue, M.-C. Meng Sci. Rep., 5(10736): 1. 29 May 2015
Name
Placotheca
Rank
Genus
Authors (Pub.)
Wang D.-M. Liu L. Guo Y. Xue J.-Z. Meng M.-C.  
Publication
A Late Devonian fertile organ with seed plant affinities from China [2015/5]
Journal
Scientific Reports
Volume
5
Issue
10736
Page number
1
Year
2015
Parent Taxon
[Class] Moresnetiopsida
Fossil Status
insynangescenceswith ovules (with ovules)
Type
Placotheca minuta
Diagnosis
Synangiate pollen organ bilaterally symmetrical; oval synangial pad with dome-shaped bottom, with margin curving toward and then extending away from synangial center. Microsporangia numerous, elongate, arising from margin of pad to produce a single ring, with their tips curving toward synangial center; microsporangia basally and somewhat laterally fused and distally free. Prepollen trilete, small, spherical in shape, and bearing indistinct papillate ornamentation.
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