Fig. 4: Synapsid carnivore jaw morpho-functional evolution and relative abundance through time.
From: Predatory synapsid ecomorphology signals growing dynamism of late Palaeozoic terrestrial ecosystems
a Jaw shape and functional morphospace changes through the late Palaeozoic. Morphospace margin colours correspond to colours of the relevant time bin on the stratigraphic chart. b Relative proportions of different taxonomic groups per time bin through the late Palaeozoic. ART Artinskian, ASL Asselian, BIA Biarmosuchia, CAP Capitanian, CHX Changhsingian, CRC Carboniferous rainforest collapse, CYN Cynodontia, DIN Dinocephalia, ECE End-Capitanian extinction, EOT Eothyrididae, GRG Gorgonopsia, GZH Gzhelian, IND Induan, KAS Kasimovian, KUN Kungurian, OE Olson’s extinction, OPH Ophiacodontidae, PENN Pennsylvanian, PTME Permo-Triassic mass extinction, SAK Sakmarian, SPH Sphenacodontia (non-therapsid), ROA Roadian, THR Therocephalia, VAR Varanopidae, WOR Wordian, WUC Wuchiapingian. Biarmosuchia, Dinocephalia and Therocephalia silhouettes by Dmitry Bogdanov (vectorized by T. Michael Keesey); all other silhouettes created by S.A.S., but some are vectorised from artwork by Felipe Alves Elias (https://www.paleozoobr.com/), available for academic use with attribution.
