Geological structure and age of the volcanogenic-sedimentary complex Cape Svyatoi Nos (Svyatonosskaya formation) are presented. The rocks located on border Novosibirsk-Chukotka Verkhoyansk–Kolyma fold belts, coast Laptev East- Siberian Seas. Field studies indicate that belong to a single complex. maximum thickness individual sections reaches up 700 m. Coarse-grained pyroclastic with rare lava f...

The Solnhofen Konservat-Lagerstätte yields a great number of remarkably preserved fossils eumalacostracan crustaceans that help us understand the early radiation several groups with modern representatives. One fossil from there, Francocaris grimmi Broili, 1917 is small shrimp-like crustacean originally described about 100 years ago as mysidacean (opossum shrimps and relatives) latest Kimmeridgi...

The Middle–Late Jurassic gonyaulacacean dinoflagellate cyst genus Gonyaulacysta is characterised by an epicyst which around twice the length of hypocyst. sulcus L-type and may be slightly sigmoidal in shape, but never S-type sensu stricto. forms with sulcuses have developed into species sulcuses. jurassica , holotype nomenclatural type genus, had a global distribution. A total 151 been assigned...

Many palaeobiological analyses have concluded that modern birds (Neornithes) radiated no earlier than the Maastrichtian, whereas molecular clock studies have argued for a much earlier origination. Here, we assess the quality of the fossil record of Mesozoic avian species, using a recently proposed character completeness metric which calculates the percentage of phylogenetic characters that can ...