Physical dormancy (PY) due to a water-impermeable seed/fruit coat is one of the characteristic features many species Fabaceae; however, timing and context evolution this trait are poorly understood. In investigation, fossil molecular data used constrain PY. The phylogenetic reconstruction programs GB-to-TNT BEAUTi/BEAST create chloroplast gene-based (rbcL matK) phylogenies taxa with well-repres...

The Titanosauria were much diversified during the Late Cretaceous, but paleobiological information concerning these sauropods continues to be scarce and no studies have been conducted utilizing modern methods of community analysis to infer possible structural patterns of extinct assemblages. The present study sought to estimate species richness and to investigate the existence of structures in ...

Thirteen species of basal Brachycera (11 described as new) are reported, belonging to nine families and three infraorders. They are preserved in amber from the Early Cretaceous (Neocomian) of Lebanon, Albian of northern Spain, upper Albian to lower Cenomanian of northern Myanmar, and Late Cretaceous of New Jersey USA (Turonian) and Alberta, Canada (Campanian). Taxa are as follows, with signific...

Herein we describe two new tribosphenic mammals from the Cedar Mountain Formation of Emery County, Utah, USA. The fossils occur in a narrow stratigraphic interval near the top of the unit (Mussentuchit Member) and date to approximately the Early–Late Cretaceous boundary (early Cenomanian, ~97 Mya). The specimens were recovered from screen-washing bulk rock samples. Both taxa are based on isolat...

Hadrosaurid (duck-billed) dinosaur bonebeds are exceedingly prevalent in upper Cretaceous (Campanian–Maastrichtian) strata from the Midwest of North America (especially Alberta, Canada, and Montana, U.S.A) but less frequently documented more northern regions. The Wapiti Formation northwestern Alberta is a largely untapped resource terrestrial palaeontological information missing southern due to...

A new diogenid paguroid, Paguristes liwinskii sp. nov., is described from upper Albian phosphorite-bearing deposits near Annopol, along the east bank of the River Vistula (Wisła), east-central Poland. This new species constitutes an additional example of Early-Mid-Cretaceous macrofaunal shift, from marine reefal limestone to siliciclastic facies, triggered by the worldwide radiation of plankton...

At the Sidi Bouzid area located in Central Tunisia, Cenomanian-Turonian reservoir rocks are well outcropping, especially in the Jebel el Kébar and Meloussi areas. The present work confirms that these carbonate intervals constitute the lateral equivalent of the Early-Middle Turonian Biréno and Late Turonian-Coniacian Douleb reservoir Members which are included within the pelagic marls of the Tur...

The present paper describes a partial skull referred to Incadelphys antiquus, from the early Palaeocene of Tiupampa (Bolivia). specimen includes anterior part with maxillae, premaxillae, nasals, lacrimals, frontals and jugal, both dentaries. Most teeth are preserved except some incisors. Some major characteristics elongation slenderness rostrum as compared other taxa narrowness blade-like morph...