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:genus:892A93DD-E3CB-C2A9-21EA-A38B77551FF7 genus
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Kvacekispermum

Genus Kvacekispermum Friis, P.R. Crane, K.R. Pedersen Foss. Impr., 74(1-2): 71. 31 Aug 2018
Name
Kvacekispermum
Rank
Genus
Authors (Pub.)
Friis E. M. Crane P. R. Pedersen K. R.  
Publication
Rightcania and Kvacekispermum: Early Cretaceous seeds from eastern North America and Portugal provide further evidence of the early chloranthoid diversification [2018/8]
Journal
Fossil Imprint
Volume
74
Issue
1-2
Page number
71
Year
2018
Parent Taxon
[Family] Chloranthaceae
Fossil Status
seeds
Type
Kvacekispermum rugosum
Diagnosis
Seeds broadly obovate in lateral view and almost circular in transverse section with coarsely rugulate to reticulate surface formed from the uneven outer surface of endotesta in which the depressions are arranged in poorly defined grooves. Stigmatic area sessile on the fruit apex, slightly raised, hemispherical. Ovule pendent, orthotropous, bitegmic, endotestal. Endotesta comprised of a single layer of palisade-shaped cells with densely spaced crystals and fibrous infillings. Tegmen crushed in mature seeds. Embryo tiny; nutritive tissue of isodiametric thin-walled cells.

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