Fig. 4 in Diversity and taxonomy of the Late Triassic sauropodomorphs (Saurischia, Sauropodomorpha) stored in the Palaeontological Collection of Tübingen, Germany, historically referred to Plateosaurus

Fig. 4. The history of taxonomy of Plateosaurus Meyer, 1837 can be interpreted as having three phases. Taxonomy 1 took place during most of the 20th century and was based on stratigraphy and morphology alone. Taxonomy 2 was the subsequent revision towards the end of the 20th century and turning of the 21st century, focusing mainly on considering the limits of intraspecific variability, assuming plasticity and explaining the morphological differences as taphonomic artefacts. Taxonomy 3 is a proposed new taxonomy that requires each specimen to be compared with the holotype of the type speciesPl. trossingensis Fraas, 1913, taking into account stratigraphy, intraspecific variability, and autapomorphies. Large blue circles refer to a genus-level determination. Dashed large blue circle refers to a sensu lato definition of Plateosaurus that includes several nomina dubia as synonyms. Small geometric shapes represent different species within the genera. Edges represent comparisons.