NOTAS SOBRE LA FLORA FOSIL DE LA ZONA DE TICO, PROVINCIA DE SANTA CRUZ. 8. SEIS ESPECIES DEL GENERO SPHENOPTERIS

Sergio Archangelsky

Abstract


Few Sphenopteris frcnds have been descríbed by previous authors, from the Lower Cretaceous Baqueró Formation. The present author has collected in different occasions many fragrr:ents of such frond which are ncw described-jMost of the species are probably true ferns, but one (Sphenopteris thoriana n. sp.))s probably related to the genus Rujlorinia (a Cymncsperrn ). Three species are new: S"p!!enopteris baqueroensis, S. sueroi and S. thoriana; the other taxa, have been menticned before: Sphenopteris cf. fittoni Seward, S. d. nordenskioldii Halle and S. psilotoides (Stokes and Webb) Ward.

Full Text:

 Subscribers Only