Archaeotypotherium propheticus (new combination). Four specimens from central Chile,
including three mandibular fragments and one partial upper dental series, are referred to the …

The rich Deseadan fauna from the locality of Salla Luribay (Bolivia) documents the last
occurrence of archaeohyracids, a poorly known group of small typotherian notoungulates …

Four families of endemic rodent-like notoungulates of the Suborder Typotheria
(“Archaeohyracidae,” Interatheriidae, Hegetotheriidae, and Mesotheriidae) show a high …

Recent field work at the Deseadan (late Oligocene) locality of Quebrada Fiera (Mendoza
Province, Argentina) has provided new fossil remains that greatly increased the faunal …

The Archaeopithecidae is a very poorly known group of native ungulates from the Eocene of
Patagonia (Argentina), whose alpha taxonomy has remained obscure since Ameghino's …

Thylacosmiline sparassodonts (previously recognized as thylacosmilids) are among the
most iconic groups of endemic South American Cenozoic mammals due to their distinctive …

Rodent-like notoungulates (Typotheria) from Gran Barranca, Chubut Province, Argentina:
phylogeny and systematics Page 163 10 Rodent-like notoungulates (Typotheria) from Gran …

Hegetotheriidae is one of the most derived families of South American notoungulates, which
are known from the late Oligocene to Pliocene. Several genera of hegetotheriids have been …

Asteracanthus was one of the most common Mesozoic hybodontiform chondrichthyans,
given that remains traditionally referred to this genus have been reported almost worldwide …

The fossil metatherian assemblage from La Venta (Middle Miocene, Colombia) is one of the
most diverse in South America, and it is critical to understand the Neogene radiation of this …