Editing Triassic (section)

=== Synapsids ===
Three [[therapsid]] groups survived into the Triassic: [[dicynodont]]s, [[therocephalia]]ns, and [[cynodont]]s. The cynodont ''[[Cynognathus]]'' was a characteristic top predator in the [[Olenekian]] and [[Anisian]] of [[Gondwana]]. Both [[Kannemeyeriiformes|kannemeyeriiform]] dicynodonts and [[Gomphodontia|gomphodont]] cynodonts remained important [[herbivore]]s during much of the period. Therocephalians included both large predators (''[[Moschorhinus]]'') and herbivorous forms ([[Bauriidae|bauriids]]) until their extinction midway through the period. [[Ecteniniidae|Ecteniniid]] cynodonts played a role as large-sized, cursorial predators in the Late Triassic. During the [[Carnian]] (early part of the Late Triassic), some advanced cynodonts gave rise to the [[Evolution of mammals#From cynodonts to crown mammals|first mammals]].

During the Triassic, archosaurs displaced therapsids as the largest and most ecologically prolific terrestrial amniotes. This "Triassic Takeover" may have contributed to the [[evolution of mammals]] by forcing the surviving therapsids and their [[Mammaliaformes|mammaliaform]] successors to live as small, mainly nocturnal [[insectivore]]s. [[Nocturnal bottleneck|Nocturnal life]] may have forced the mammaliaforms to develop fur and a higher [[Basal metabolic rate|metabolic rate]].<ref name="RubenJones2000FurAndFeathers">{{cite journal |last1=Ruben |first1=J. A. |last2=Jones |first2=T. D. |name-list-style=amp |date=1 August 2000 |title=Selective Factors Associated with the Origin of Fur and Feathers |url=https://www.researchgate.net/publication/247478113 |journal=[[Integrative and Comparative Biology]] |volume=40 |issue=4 |pages=585–96 |doi=10.1093/icb/40.4.585 |access-date=24 November 2023 |doi-access=free}}</ref>

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File:Lystrosaurus BW.jpg|''[[Lystrosaurus]]'' was a widespread dicynodont and the most common land vertebrate during the Early Triassic, after animal life had been greatly diminished
File:Cynognathus BW.jpg|''[[Cynognathus]]'' was a carnivorous [[Mammaliaformes|mammal-like]] [[cynodont]] from the Early Triassic.
</gallery>