Interrelationships of basal synapsids: Cranial and postcranial morphological partitions suggest different topologies

Basal synapsids ('pelycosaurs') form the basalmost portion of the mammalian stem lineage and document the transition from primitive 'reptile-like' basal amniotes to derived, mammal-like therapsids. They dominated terrestrial ecosystems of the latest Carboniferous and Early Permia...