Zamuneria L.C.A.Martínez, A.Iglesias et Artabe in Martínez, Iglesias, Artabe, Varela & Apesteguía

Plant Fossil Names Registry Number: PFN002385

Act LSID: urn:lsid:plantfossilnames.org:act:2385

Authors: L. C. A. Martínez, A. Iglesias & A. E. E. Artabe

Rank: genus

Reference: Martínez, L. C. A., Iglesias, A., Artabe, A. E. E., Varela, A. N. & Apesteguía, S. (2017): A new Encephalarteae trunk (Cycadales) from the Cretaceous of Patagonia (Mata Amarilla Formation, Austral Basin), Argentina. – Cretaceous Research 72: 81–94., link

Page of description: 83

Type

Original diagnosis/description

Columnar, polyxylic stem, covered by persistent rhomboidal leaf bases and cataphylls. Parenchymatous central pith with mucilage canals, idioblasts and medullary vascular bundles. Cylindrical vascular system centrifugal, with many rings of manoxylic secondary xylem and phloem, containing primary and secondary rays. Primary rays with leaf traces and a mucilage canal associated. Parenchymatous cortex with mucilage canals, idioblasts and girdling leaf traces in the cortex.

Etymology

The genus honours the late Dr. Alba B. Zamuner, an Argentinian palaeobotanist who passed away in 2012, and who made significant contributions to our knowledge of fossil floras from Argentina. She was one of the leaders of the expedition in which this fossil was discovered.