A second nearly complete, articulated specimen of the basal troodontid Mei long (DNHM D2154) is reported from the Early Cretaceous (Hauterivian-Valanginian) lower Yixian Formation, Liaoning Province, China. New diagnostic features of Mei long are identified, including: a uniquely shaped maxilla, low with small, low maxillary fenestra; sacrum with an extremely wide caudal portion and elongate 4(...

The pre-Cenozoic bryophyte fossil record is significantly sparser than that of vascular plants or Cenozoic bryophytes. This situation has been traditionally attributed to a hypothesized low preservation potential of the plants. However, instances of excellent pre-Cenozoic bryophyte preservation and the results of experiments simulating fossilization contradict this traditional interpretation, s...

This paper reports the results of a study magmatic rocks with Sn–W–Au–Ag mineralization from Kuranakh, Elikchan, and Istekh ore fields in Northern batholith belt north-eastern Verkhoyansk–Kolyma orogenic Eastern Russia. Using petrographic, mineralogical, geochemical, isotopic methods, we determined mineral compositions, petrochemistry, geochemistry rocks, P–T conditions their generation crystal...

A series of small-sized fossil turtles were collected from Beckles’ Pit, Durlston Bay, Dorset, United Kingdom in 1856 a sediment package referable to the Early Cretaceous (Berriasian) Purbeck Group. The two primary accounts that previously documented these concluded they represent juveniles coeval early pleurosternid Pleurosternon bullockii . brief, third account, however, suggested may new spe...

The Gulf of Mexico is an isolated oceanic basin whose nature, structure and age are not fully elucidated, mostly because seafloor spreading isochrons have been identified in this so far. We compiled processed all publicly available marine magnetic data to produce a new anomaly map the Mexico. This reveals fan-like set intermediate-wavelength (>100 km) anomalies related spreading. Our anomaly-ba...