Marine and terrestrial animals show a mosaic of lineage extinctions and diversifications
during the J urassic–C retaceous transition. However, despite its potential importance in …

“Excellent... Those who are interested in vertebrate paleontology or in the scientific history of
the American midwest should really get a copy.”—PalArch's Journal of Vertebrate …

In this complete and thorough update of Arthur Boucot's seminal work, Evolutionary
Paleobiology of Behavior and Coevolution, Boucot is joined by George Poinar, who …

Fossiliferous deposits of the Greenhorn Limestone (Upper Cretaceous) are found on the
Comanche National Grassland in southeastern Colorado. The lowest portion of the …

Polycotylids are plesiosaurian marine reptiles that evolved during the Early Cretaceous and
radiated into multiple genera during the Late Cretaceous. Here we describe a small new …

Recent fieldwork in the Tropic Shale of southern Utah has resulted in the recovery of several
specimens of short-necked plesiosaurs including both polycotylid plesiosauroids and …

A nearly complete skeleton of a polycotylid plesiosaur is described from the early Late
Cretaceous laminated limestones at Vallecillo, northeast Mexico. It shows extensive soft …

Pliosauridae is a globally distributed clade of aquatic predatory amniotes whose fossil
record spans from the Lower Jurassic to the Upper Cretaceous. However, the knowledge of …

Here we describe the first findings of reptile remains in the Upper Cretaceous marine strata
of Siberia, which represent the northernmost occurrences of plesiosaurians,? mosasaurids …

The Eulert pliosaurid remains (FHSM VP-321) housed at the Sternberg Museum of Natural
History (Kansas, USA) include one of the world's best examples of a Cretaceous pliosaurid …