Reconstruction of Platyhystrix rugosus （Image source：Nobu Tamura， CC BY-SA 3.0 ） Age Carboniferous（Gzhelian）-Permian（Kungurian） 299-279.5 Ma Taxonomy Kingdom: Animalia Phylum: Chordata Class: Amphibia Order: Temnospondyli Family: Dissorophidae Genus: Platyhystrix Species: Platyhystrix rugosus Morphological description Platyhystrix rugosus is an early Permian amphibian characterized by extremely elongated neural spines that form a sail-like structure along the back. The pro

Reconstruction of Stenokranio boldi （Courtesy of Frederik Spindler ） Age Carboniferous（Gzhelian）-Permian（Asselian） 303-293 Ma Taxonomy Kingdom: Animalia Phylum: Chordata Class: Amphibia Order: Temnospondyli Family: Eryopidae Genus: Stenokranio Species: Stenokranio boldi Morphological description Stenokranio boldi is a large amphibian that lived from the late Carboniferous to the early Permian and belongs to the family Eryopidae. Known material includes two well-preserved sku

Reconstruction of Kwatisuchus rosai （Courtesy of Márcio Castro） Age Triassic（between Induan and Olenekian） 251-250 Ma Taxonomy Kingdom: Animalia Phylum: Chordata Class: Amphibia Order: Temnospondyli Suborder: Stereospondyli Family: Benthosuchidae Genus: Kwatisuchus Species: Kwatisuchus rosai Morphological description Kwatisuchus rosai is an Early Triassic temnospondyl amphibian belonging to the family Benthosuchidae. The holotype specimen, UNIPAMPA 0765, preserves a well-pre