Comparative study between Ginkgoites tigrensis Archangelsky and Ginkgo biloba Linn. leaves
Keywords:Ginkgoalean leaves, Baqueró Formation, Lower Cretaceous, Santa Cruz Province, Argentina
A comparative study between leaves of Ginkgoites tigrensis Archangelsky'1965, which belong to the family Karkeniaceae and those of Ginkgo biloba L. included within the family Ginkgoaceae is realized, using light microscopy (LM) and scanning and transmission electron microscopy (SEM and TEM). The fossil cuticles occur in the sediments located in Baqueró Formation (Lower Cretaceous), Santa Cruz Province, Argentina. The morphological, anatomical and ultrastructural analyses indicate great similarities between fossil and extant leaves.