The Mooreville Chalk is a geological formation in North America, within the U.S. states of Alabama and Mississippi, which were part of the subcontinent...

known to science—the first fossils of Mosasaurus were found as skulls in a chalk quarry near the Dutch city of Maastricht in the late 18th century, and were...

Prionochelys is an extinct genus of pancheloniid from the Mooreville Chalk and Eutaw Formations of Alabama. It consists of a single species, P. matutina...

right dentary and partial left dentary from the Maastrichtian-age Muwaqqar Chalk Marl Formation of Harrana, Jordan. The specific name hudae honors Kaddumi's...

Squalicorax, commonly known as the crow shark, is a genus of extinct lamniform shark known to have lived during the Cretaceous period. The genus had a...

metre (3 ft 3 in), remains of which are common from the Niobrara Chalk, the Mooreville Chalk Formation, the Pierre Shale, and other geological formations...

was in the Middle Cenomanian to Middle Turonian deposits in the English Chalk, while P. polygyrus was in the Late Santonian-Early Campanian deposits....

ocean temperatures) and warm-blooded seabird Ichthyornis from the Mooreville Chalk as a proxy. Analyzing the isotope levels of eleven Tylosaurus specimens...

fossils found in the youngest disturbed deposits, which belong to the Mooreville Chalk Formation. The crater is well preserved, including the original impact...

Formation and Mooreville Chalk in Alabama, which they named C. bryanti. The genus Cretalamna is a portmanteau of creta, the Latin word for "chalk", prefixed...