The L ate J urassic to E arly C retaceous interval represents a time of environmental
upheaval and cataclysmic events, combined with disruptions to terrestrial and marine …

Tuscany has a rich Pliocene record of marine megafauna (MM), including mysticetes,
odontocetes, sirenians and seals among the mammals, and six orders of sharks among the …

Marine tetrapods occupy important roles in modern marine ecosystems and often gather in
large aggregations driven by patchy prey distribution, 1, 2 social or reproductive behaviors …

Backstripped tectonic basin subsidence histories are critical for interpreting phases of
lithospheric deformation and paleoenvironmental change from the stratigraphic record. This …

According to a longstanding paradigm, aquatic amniotes, including the Mesozoic marine
reptile group Ichthyopterygia, give birth tail-first because head-first birth leads to increased …

Early Cretaceous ichthyosaur diversity has markedly increased in recent years with the
discovery of new taxa in the field and in museum collections. This has led to new characters …

Cretaceous ichthyosaurs were relatively diverse in temperate latitudes, but few species have
been described from the palaeotropics. Here, we describe a new ophthalmosaurid …

An ichthyosaurian skeletal remains assigned to the genera Arthropterygius and
Ophthalmosaurus are described from the Volgian deposits of the Komi Republic and Nenets …

Platypterygius sachicarum is one of the few Lower Cretaceous ichthyosaurian species
described from the Hauterivian–Aptian-aged Paja Formation, the most complete Lower …

Jurassic ichthyosaurs dominated upper trophic levels of marine ecosystems. Many species
coexisted alongside each another, and it is uncertain whether they competed for the same …