LA FLORA TRIÁSICA DEL GRUPO EL TRANQUILO, PROVINCIA DE SANTA CRUZ, PATAGONIA. PARTE VII: CYCADOPHYTA

Authors

  • Silvia Gnaedinger Secretaría General de Ciencia y Técnica, Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Programa de Investigación Geológicas y Paleontológicas, Córdoba.

Abstract

Plants impressions of the Cycadopsida (sensu lato) from the Upper Triassic El Tranquilo Group are described. This plant group is limited to the genus Pseudoctenis and Pterophyllum and comprises: Pseudoctenis fissa Du Toit, Pseudoctenis spatulata Du Toit and Pterophyllum multilineatum Shirley from the Cañadón Largo Formation and Pseudoctenis sp. from the Laguna Colorada Formation. They are very scarcely represented in the flora, slightly more abundant in the Cañadón Largo Formation.

KEY WORDS. Cycadophyta. Impressions. Systematics. Upper Triassic. Santa Cruz. Argentina.

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Published

2010-10-01

Issue

Vol. 6 No. 1 (1999)

Section

Thematic Volume

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