We present a numerical cladistic (parsimony) analysis of seed plants plus progymnosperms,
using characters from all parts of the plant body, outgroup comparison, and a method of …

Seed plant phylogeny is evaluated using a data set of 46 terminals (taxa) and 103
morphological and anatomical characters. Cladistic analyses using the criterion of …

We reconstruct the evolutionary changes in different anatomical markers in order to
understand the evolution and functional aspects of growth rings during the diversification of …

The Upper Triassic (Carnian–Norian) Ischigualasto Formation has yielded a diverse
vertebrate fauna that records the initial phase of dinosaur evolution. Radioisotopic dates …

The Triassic was a time of diversification of the global floras following the mass-extinction
event at the close of the Permian, with floras of low-diversity and somewhat uniform aspect …

Seed ferns (pteridosperms) make up a heterogeneous group of broadleaf gymnosperms.
Our attempts to reconstruct these extinct plants here summarize research over many years …

The ancestral angiosperm is commonly interpreted as an arborescent to shrubby
magnolialean with large, multiparted, complex flowers. We examined this hypothesis using a …

Almost every living and fossil group of gymnosperms has been proposed as a possible
ancestor of angiosperms. A common problem with many of these proposals is their reliance …

Abstract Taylor, el, tn Taylor (Department of Ecology and Evolutionary Biology, and Natural
History Museum and Biodiversity Research Center, 1200 Sunnyside Ave., University of …

The flora of Gondwanan southern Africa is represented in the rock record by micro-fossils,
macro-fossils and petrified woods. All these types of fossils are seldom preserved together in …