Examination of Hkamti and Tanai Burmese ambers reveals two new genera species †Lancepyrinae: Protopyris myanmarensis Jouault & Nel gen. et sp. nov. Burmapyris azevedoi Jouault, Perrichot is the first Bethylidae described from amber deposit (lower Albian, mid-Cretaceous) in Myanmar. These specimens provide useful clues to understand paleobiogeographic evolution †Lancepyrinae, since they are only...

The “Baja BC hypothesis”, which postulates that western Washington State, British Columbia and southern Alaska originated at the latitude ofMexico, has pitted paleomagnetic results against long-held interpretations about the tectonic evolution of western North America. In this paper we develop a new paleobotanical method for estimating paleolatitude and apply it to this problem. We start by sho...

The first megaspores recovered from Ukrainian Lower Cretaceous strata are described and illustrated by reflected light scanning electron micrography. Four lycopsid megaspore taxa identified in core samples north of Kherson (Khersons'ka Oblast), the Black Sea Basin, southern Ukraine. Miospore assemblages same reveal a slightly higher diversity microspores and, conjunction with previous foraminif...