Planoxylon Stopes, Protelicoxylon Philippe y Herbstiloxylon nov. gen. (Coniferales) de la Formación La Matilde (Jurásico Medio), provincia de Santa Cruz, Argentina

Authors

  • Silvia Gnaedinger

Abstract

Resumen. Se dan a conocer nuevas maderas de gimnospermas provenientes de la Formación La Matilde (Jurásico Medio) del Gran Bajo de San Julián, provincia de Santa Cruz, Argentina. Se describen Planoxylon australe (Salard) Vozenin-Serra Salard-Cheboldaeff, Protelicoxylonferiziense (Fahkr y Marguerier) Philippe y un nuevo taxón: Herbstiloxylonpatagonicum gen. et sp. nov. Planoxylon es miembro de la familia Protopinaceae que incluye maderas con caracteres transicionales entre el tipo araucarioide y el tipo abietinoide. Se analizan las afinidades de Planoxylon y Herbstiloxylon gen. nov. con las Cupressaceae (Orden Coniferales). Abstract. PLANOXYLON STOPES, PROTELICOXYLON PHILIPPEAND HERBSTILOXYLON GEN. NOV. (CONIFERALES) FROM THE MIDDLE JURASSIC LA MATILDE FORMATION, SANTA CRUZ PROVINCE, ARGENTINA. Planoxylonaustrale (Salard) Vozenin-Serra and Salard-Cheboldaeff, Protelicoxylonferiziense (Fahkr and Marguerier) Philippe and Herbstiloxylonpatagonicum gen. et sp. nov. from the Middle Jurassic La Matilde Formation, Gran Bajo de San Julián, Santa Cruz Province, Argentina are described. Planoxylon is a member of the Protopinaceae which includes wood specimens with transitional characters between araucarioid and abietinoid types. The relationship of Planoxylon and Herbstiloxylon gen. nov. with the Cupressaceae is analized.

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Published

2012-12-12

Issue

Vol. 44 No. 2

Section

Articles

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How to Cite

Planoxylon Stopes, Protelicoxylon Philippe y Herbstiloxylon nov. gen. (Coniferales) de la Formación La Matilde (Jurásico Medio), provincia de Santa Cruz, Argentina. (2012). Ameghiniana, 44(2), 321-335. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/648

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