El género Prototaxoxylon Kräusel y Dolianiti (Taxales) de la Formación La Matilde (Jurásico Medio) del Gran Bajo de San Julián, provincia de Santa Cruz, Argentina

SILVIA GNAEDINGER; RAFAEL HERBST,

AMEGHINIANA

APA

Lugar: Buenos Aires; Año: 2006 vol. 43 p. 123 - 138

0002-7014

Abstract. PROTOTAXOXYLON KRÄUSEL Y DOLIANITI (TAXALES) FROM LAMATILDE FORMATION (MIDDLE JURASSIC), GRAN BAJO DE SAN JULIÁN, SANTA CRUZ, ARGENTINA. Three species of Prototaxoxylon Kräusel and Dolianiti are described for the first time for the Jurassic of Argentina. They are Prototaxoxylon intertrappeum Praksh and Srivastava, Prototaxoxylon uniseriale Prasad and the new species Prototaxoxylon acevedoae Gnaedinger and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Srivastava, Prototaxoxylon uniseriale Prasad and the new species Prototaxoxylon acevedoae Gnaedinger and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. are described for the first time for the Jurassic of Argentina. They are Prototaxoxylon intertrappeum Praksh and Srivastava, Prototaxoxylon uniseriale Prasad and the new species Prototaxoxylon acevedoae Gnaedinger and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Srivastava, Prototaxoxylon uniseriale Prasad and the new species Prototaxoxylon acevedoae Gnaedinger and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. GRAN BAJO DE SAN JULIÁN, SANTA CRUZ, ARGENTINA. Three species of Prototaxoxylon Kräusel and Dolianiti are described for the first time for the Jurassic of Argentina. They are Prototaxoxylon intertrappeum Praksh and Srivastava, Prototaxoxylon uniseriale Prasad and the new species Prototaxoxylon acevedoae Gnaedinger and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Srivastava, Prototaxoxylon uniseriale Prasad and the new species Prototaxoxylon acevedoae Gnaedinger and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. are described for the first time for the Jurassic of Argentina. They are Prototaxoxylon intertrappeum Praksh and Srivastava, Prototaxoxylon uniseriale Prasad and the new species Prototaxoxylon acevedoae Gnaedinger and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Srivastava, Prototaxoxylon uniseriale Prasad and the new species Prototaxoxylon acevedoae Gnaedinger and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic. and Herbst. Thus, a new group of conifers, Order Taxales, is added to the assemblage of the Jurassic “petrified woods” of Patagonia. Also, the biochron of Prototaxoxylon uniseriale is extended from the Permian to the Jurassic. to the Jurassic.