Italy. In 2015, a large Tanystropheus cervical vertebra was described from the Economy Member of the Wolfville Formation, in the Bay of Fundy of Nova Scotia, Canada. The Wolfville Formation spans the Anisian to Carnian stages, and the Economy Member is likely Middle Triassic (Anisian-Ladinian) in age. It is a rare example of predominantly freshwater strata preserving Tanystropheus fossils. Tanystropheus-like tanystropheid fossils are known from another freshwater formation in North America: the Anisian-age Moenkopi Formation of Arizona and New Mexico. Several new tanystropheid genera have been named from former Tanystropheus fossils. Fossils from the Anisian Röt Formation in Germany, previously referred to Tanystropheus antiquus, were named as a new genus and species in 2006: Amotosaurus rotfeldensis. In 2011, fossils from the Lipovskaya Formation of Russia were given the new genus and species Augustaburiana vatagini by A.G. Sennikov. He also named the new genus Protanystropheus for T. antiquus, though some other authors have continued to retain that species within Tanystropheus. Tanystropheus fossai, from the Norian-age Argillite di Riva di Solto in Italy, was given its own genus Sclerostropheus in 2019. Anatomy Tanystropheus was the one of the longest known non-archosauriform archosauromorphs. Vertebrae referred to "T. conspicuus" may correspond to an animal up to five or six meters (16.4 to 20 feet) in length. T. hydroides was around the same size, with the largest specimens at around 5.25 meters (17.2 feet). T. longobardicus was significantly smaller, with an absolute maximum size of two meters (6.6 feet). Despite the large size of some Tanystropheus species, the animal was lightly built. One mass estimate used crocodiles as a density guideline for a 3.6 meter (11.8 feet) long model Tanystropheus skeleton. For a Tanystropheus individual of that length, the weight estimate varied between 32.9 kg (72.5 lbs) and 74.8 kg (164.9 lbs), depending on the volume estimation method. This was significantly lighter than crocodiles of the same length, and more similar to large lizards. Skull of Tanystropheus longobardicus The skull of Tanystropheus longobardicus is roughly triangular when seen from the side and top, narrowing towards the snout. Each premaxilla (the toothed bone at the tip of the snout) has a long tooth row, with six teeth. The premaxillary teeth are conical, fluted by longitudinal ridges, and have subthecodont implantation, meaning that the inner wall of each tooth socket is lower than the outer wall. The premaxilla meets the maxilla (the succeeding toothed bone) along a