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 © 2014-2021

IDNAME urn:idName:fossilplants.info:genus:626BE561-5EFA-4EAA-B212-131C96169F15 genus
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Chamberlainia

Genus Chamberlainia Artabe, Zamuner, D.W. Stev. Alcheringa, 29(1): 88. 39 Apr 2005
Name
Chamberlainia
Rank
Genus
Authors (Pub.)
Artabe A. E. Zamuner A. B. Stevenson D.  
Publication
A new genus of Late Cretaceous cycad stem from Argentina, with reappraisal of known forms [2005/4]
Journal
Alcheringa
Volume
29
Issue
1
Page number
88
Year
2005
Parent Taxon
[Family] Encephalartaceae
Fossil Status
stems
Type
Chamberlainia pteridospermoidea
Diagnosis
Centripetal and centrifugal polyxylic stem covered by persistent rhomboidal foliar bases and smaller cataphylls in cycles. Central parenchymatous pith with idioblasts, mucilage canals, and arcs of medullary vascular bundles. Cylindrical vascular system made by three rings of centrifugal secondary xylem and phloem, endarch or mesarch primary xylem and relictual centripetal secondary bundles. Parenchymatous cortex with extrafascicular concentric bundles and leaf traces with an incomplete girdling configuration. Bulbils present along the stem.
Nomenclatural synonyms

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User comments

  • Doweld Alexander at: 01/17/2021 01:24

    non Chamberlainia Grout, Moss Fl. N. Amer. 3: 27. Sep 1928 (Bryophyta-Brachytheciaceae).

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