This environment would have included transitions between intertidal zones

Altura 170 mm

Longitud hocico-cola 65 mm

Su tronco era ancho y profundo

Stethacanthus altonensis Dino and Dog This environment would have includedStethacanthus altonensis is an extinct cartilaginous fish from the Early Carboniferous (late Mississippian, approx. 330320 million years ago), belonging to the Symmoriida group within Chondrichthyes, a primitive lineage closely related to early sharks and chimaeras. It is the type species of the genus Stethacanthus, a taxon particularly renowned for one of the strangest anatomical structures known among Paleozoic vertebrates: a modified anterior