Definition of Sphenacodont. Meaning of Sphenacodont. Synonyms of Sphenacodont

- Sphenacodontia is a stem-based clade of derived synapsids. It was defined by Amson and Laurin (2011) as "the largest clade that includes Haptodus baylei...
- moderately-sized, lightly built carnivores, intermediate in form between basal sphenacodont "pelycosaurs" and more advanced therapsids. Biarmosuchians were rare...
- whiskers unlikely. Therapsids evolved from a group of pelycosaurs called sphenacodonts. Therapsids became the dominant land animals in the Middle Permian,...
- to be more primitive than other sphenacodonts like Dimetrodon. They thought varanopids and Dimetrodon-like sphenacodonts were closely related because both...
- to a 2020 study, it should be classified as a primitive non-therapsid sphenacodont rather than a genuine basal therapsid. Tetraceratops is known from a...
- Comparison of "pelycosaurian" skulls: 1 sphenacodont, 2 ophiacodont, 3 caseid. The quadratojugale is green, squamosale is red, jugale is blue....
- the skull and the teeth. The sphenacodontoids evolved from earlier sphenacodonts such as Haptodus and Ianthodon via a number of transitional stages of...
- Haptodus is an extinct genus of basal sphenacodonts, a member of the clade that includes therapsids and hence, mammals. It was at least 1.5 metres (5 ft)...
- later a crocodylomorph in 1869, before finally being identified as a sphenacodont synapsid in 1899, a classification that still holds today. A species...
- Palaeohatteriidae is an extinct family of basal sphenacodonts known from the Early Permian period (****elian-Sakmarian stages) of Saxony, Germany. Two...