Titanosauria: A Critical Reappraisal of Its Systematics and the Relevance of the South American Record

CARBALLIDO J. L.; OTERO A.; MANNION P.; SALGADO L.; PEREZ MORENO, A.

South American Sauropodomorph Dinosaurs

Springer

Año: 2022; p. 1 - 29

Our understanding of sauropodomorph evolution is continually improved with the recognition of newspecies and their inclusion in phylogenetic data sets, along with the incorporation of novel characters. Whereas some subclades remain stable in terms of their original taxonomic content, the definitions of others have proven to be less easily applicable as increased taxon and character sampling has changed sauropodomorph interrelationships. Relatively minor differences in the position of Clade specifiers between alternative phylogenies result in substantial differences in clade composition in several instances.Titanosauria is themost successful and diverse clade of sauropodomorph dinosaurs, but its interrelationships are poorly understood. With an ever-growing number of recognized species and increased taxon sampling in phylogenies, resulting in the recovery of newly identified, diverse subclades, the need