Articles relating to the Sphenacodontidae, an extinct family of small to large, advanced, carnivorous, Late Pennsylvanian to middle Permian pelycosaurs. Primitive forms were generally small (60 cm to 1 meter), but during the later part of the early Permian these animals grew progressively larger (up to 3 meters or more), to become the top predators of their environments.
Pages in category "Sphenacodontidae"
The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes.