The end of the Cretaceous saw the evolution of endemic dinosaur faunas on different
landmasses, driven by continental fragmentation. Understanding the evolution of these …

The fossil fish Ptychodus Agassiz, 1834, characterized by a highly distinctive grinding
dentition and an estimated gigantic body size (up to around 10 m), has remained one of the …

Abstract In the Late Cretaceous, northern and southern hemispheres evolved distinct
dinosaurian faunas. Titanosaurians and abelisaurids dominated the Gondwanan continents; …

Marine amniotes have played many crucial roles in ocean ecosystems since the Triassic,
including predation at the highest trophic levels. One genus often placed into this guild is the …

The latest Cretaceous Phosphates of Morocco preserve the highest biodiversity of
mosasaurid squamates anywhere in the world. Intensive sampling over the past century has …

Tyrannosaurs are among the most intensively studied and best-known dinosaurs. Despite
this, their relationships and systematics are highly controversial. An ongoing debate …

Mosasaurids, a clade of specialized marine squamates, saw a major adaptive radiation in
the Late Cretaceous, evolving a wide range of body sizes, shapes, and specialized tooth …

The Mosasauridae underwent a major radiation early in the Late Cretaceous, with the
subfamilies Plioplatecarpini and Tylosaurini appearing in the Turonian. Here we report an …

Mosasaurids were highly diverse and dominant as predators in late Cretaceous marine
ecosystems. In the Maastrichtian, the Halisaurinae, a clade of relatively small-bodied …

Late Cretaceous marine ecosystems saw a major adaptive radiation of mosasaurids, which
evolved highly disparate jaw and tooth morphologies to feed on different prey. A striking …