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Vertebrate Zoology


Pelycosaurs Ancient synapsids; Sprawled posture, homodont, ecotherms
Therapsids Transitional state
Anatomical Trends in Mammals Vascularized bone for faster growth; Upright posture and better locomotion and ventilation; Loss lumbar ribs and cervical ribs for better flex;Reduction limb girdles
Cranial Trends in Mammals Enlarged nares; Secondary palette; Temporal fenestra; Heterodont teeth, occlusion surfaces, and diphotodont; Enlarged braincase
Synapamorphy of Mammals Hair; Scent, oil, sweat, and mammary glands
Created by: LionsandGiants