echinoids fauna are common and distributed in the lower miocene deposits of the bagher abad area, northeast isfahan, central iran.there are six echinoid taxa belonging to the echinoidea class that can be described as: clypeaster intermedius, prinocidaris sp. andspines related to: eucidaris zaemays, stylocidaris polyacantha, spatangoid sp. and prinocidaris sp. bivalves, foraminifers,bryozoans, b...

New remains of a relatively plesiomorphic nothrotheriid sloth have been recovered from upper Miocene-aged deposits near the village Achiri in Altiplano Bolivia. The new specimens appear allied to other middle and late Miocene Argentina Bolivia that assigned pseudo-genus ‘Xyophorus’. ‘Xyophorus’ has not previously recognised as distinct genus because paucity material it encompasses. specimens, h...

Ice-volume estimates for the early Miocene (23–16 Ma ATS) were determined by applying dO to sea-level calibrations to high-resolution dO records from ODP Sites 1090 and 1218. These calibrated records indicate that ice-volume ranged between 50% and 125% of the present day East Antarctic Ice Sheet (EAIS) during most of the early Miocene (23–17 Ma). Maximum icevolume occurred at each of the early ...

This paper presents the results of investigations volcanic rocks Middle Miocene age in central parts Varadar zone for first time. The that appear Čitakliјa locality, according to their petrological and mineralogical characteristics, represent basic igneous they are transitional between phonotephrites high potassium shoshonites. geochemical distribution trace elements from group rare earths (REE...

Abstract The tectonic opening of the Fram Strait (FS) was critical to water exchange between Atlantic Ocean and Arctic Ocean, caused transition from a restricted ventilated during early Miocene. If how North influenced global current system is still disputed. We apply fully coupled atmosphere–ocean–sea-ice model investigate stratification ocean circulation in response FS early-to-middle Progres...