Phylogenetic classification and evolutionary analysis have transformed the study of biodiversity by shifting from traditional rank-based systems to a framework centred on shared ancestry and descent.
Introduction: Carving nature at its joints, or Why birds are not dinosaurs and men are not apes -- Part I. The Interrelationships of Organisms: 1. What this book is about -- 2. Classification -- Part ...
Sponges (phylum Porifera) represent the earliest-diverging lineage of multicellular animals, distinguished by their porous bodies, internal skeletal elements and remarkable morphological diversity.