PALAEOPHYTOLOGIA KURTZIANA. III. 7. REVISION DE LAS ESPECIES ARGENTINAS DEL GENERO CLADOPHLEBIS.

Abstract

The principal diagnostic characters of Cladophlebis mainly as pointed out by Frenguelli (1947) on Brongniart's original, are accepted with only a few additions and restrictions. After that, a sistematic description of all the species accepted validly for Argentina is given, with indications of: paper of original diagnosis, original locality and age, type-specimens, other cites from Argentina and arguments for their acceptance. A list of these species is found in page 267. A further chapter is devoted to discuss those species whose presence is not accepted because of: wrong determinations, too fragmentary material, etc. Finally, table 1 shows the geographic and geologic distribution of all the species represented in Argentina. Tentatively, they are-grouped into: I) Triassic, II) Trias-jurassic, III) Liassic, IV) Jura-Lower Cretaceous and V) Cretaceous species. These groups don't have any but empirical value.