Data/hora: 11/06/2024 11:43:20

Provedor de dados: 	41	
País: 	Argentina	
Título: 	A new araucarian fossil species from the Paleogene of southern Argentina	
Autores: 	Panti,Carolina; Césari,Silvia N.; Marenssi,Sergio A.; Olivero,Eduardo B.	
Data: 	2007-03-01	
Ano: 	2007	
Palavras-chave: 	Gymnosperms; Araucariaceae; Araucaria; Cuticle; Paleogene; Argentina.	
Resumo: 	A new Araucariaceaea from the Paleogene of Tierra del Fuego Province, Argentina is described. Araucaria pararaucana sp. nov. has imbricate, ovate-lanceolate leaves with an acute apex, characterized by the presence of discontinuous and longitudinally oriented stomatal rows separated by epidermal cells, which may be slightly sinuous. Stomatal guard cell surface is granular. These fossil leaves are compared with the extant sections Bunya, Intermedia and Araucaria. Their anatomical characters along with the external morphology suggest a close affinity with the extant southern Patagonian species A. araucana (Molina) K. Koch. The record of this new late Eocene species provides more evidence for a probable unique representation of Section Araucaria in the area during the Tertiary.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142007000100016	
Editor: 	Asociación Paleontológica Argentina	
Formato: 	text/html	
Fonte: 	Ameghiniana  v.44 n.1 2007	
Fonte: 	info:eu-repo/semantics/openAccess