The body size of marine ectotherms is often negatively correlated with ambient water temperature, as seen in many clades during the hyperthermal crisis end-Permian mass extinction (c. 252 Ma). However, case ostracods, changes ancient events are rarely quantified. In this study, we evaluate ostracods Aras Valley section (northwest Iran) response to drastic warming at three taxonomic levels: clas...

OstracodsOstracoda (ostracod), charophytesCharophyta (charophyte) and pollenPollen were retrieved from sediments of the Baynunah Formation. Autoecological characteristics ostracodsOstracoda (ostracod) (charophyte), together with detailed observations on taphonomyTaphonomy ostracodOstracoda valves, provide a reconstruction depositional environments freshwater system. These microfossil assemblage...

Skogsbergiella tetrathrix sp. nov. and S. species A, species of the family Cylindroleberididae are described from the Drake Passage (59°21.97´S - 60°4.27´W to 59°22.55´S - 60°4.01´W, depth 2372-2380 m) and Weddell Sea  (75°49.9´S-27°31.7´W to 74°51.55´S-27°40.3´W, depth 467-475m) respectively. Skogsbergiella tetrathrix sp.nov. is very close to S. macrothrix Kornicker, 1975 but differs by greate...

In the western Caribbean Sea, about an hour after the sun sets, a complex and ritualized light show of precise, vertically placed luminescent pulses erupts over shallow grassbeds. These are among the most complex displays known in marine systems. Displays consist of repeated trains of secreted bioluminescent pulses in a specific pattern ejected into the water column as courtship signals by male...