In Depth Martensius is a genus of primitive caseidid synapsid that lived in Europe during the early Permian. Martensius is known from both adult and juvenile specimens, and these show a development in changing dietary habits as individual Martensius as they grew older. The teeth of Martensius are triangular like those of earlier more primitive … Read more
In Depth Arisierpeton is a genus of caseid that lived in North America during the early Permian. The genus is named in honour of Giuseppe Alberto Arisi, the person who discovered the holotype fossil. Further Reading - A small caseid synapsid, Arisierpeton simplex gen. et sp. nov., from the early Permian of Oklahoma, with a … Read more
In Depth Alierasaurus is a genus of caseid synapsid that lived in Sardinia during the Permian. Because Alierasaurus is only known from partial remains it is difficult to be certain about its full body size. However, these remains seem to be close to comparable in size to the huge Cotylorhynchus, one of the largest land … Read more