UNA FLOR FÓSIL MORFOLÓGICAMENTE AFÍN A LAS GROSSULARIACEAE (ORDEN ROSALES) DE LA FORMACIÓN LA MESETA (EOCENO MEDIO) ISLA MARAMBIO, ANTÁRTIDA

Authors

  • María A. Gandolfo L. H. Bailey Hortorium, Cornell University, Ithaca.
  • Patricia Hoc Laboratorio de Plantas Vasculares, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires.
  • Sergio N. Santillana Instituto Antártico Argentino. Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires.
  • Sergio A. Marenssi Instituto Antártico Argentino. Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires.

Abstract

A new fossil flower with affinities to the family Grossulariaceae is described. It was collected from outcrops of La Meseta Formation, Marambio (Seymour) Island, Antarctica, together with other fossil plant remains. The age of this unit has been calculated as lower Eocene to possibly lower Oligocene, although the fossil was collected from fine-grained heterolithic facies of estuarine origin dated as middle Eocene. The characters preserved in the flower suggest a close relationship with the family Grossulariaceae. Comparisons with living and fossil taxa are established. Based on these comparisons, we erect a new genus for this fossil flower.


KEY WORDS. Flower. Fossil. Grossulariaceae. Rosales. La Meseta Formation. Eocene. Marambio Island. Antarctica.

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Published

2015-10-01

Issue

Vol. 5 No. 1 (1998)

Section

Thematic Volume

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Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a CC Attribution-NonCommercial 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.