Seventeen species of decapod crustaceans have been described from Campanian through Paleocene rocks in the Santa Marta, López de Bertodano, and Sobral Formations of the James Ross Basin, Antarctica. Of these, nine are new species: Metanephrops rossensis, Glyphea australensis. Paguristes santamartaensis, Munidopsis foersteri, Retrorsichela laevis, Plagiophthalmous collinsi, Rhinopoupinia bicornis, Cristafrons praescientis, and Torynomma (Torynomma) australis. One new family, Retrorsichelidae, and three new genera, Retrorsichela, Rhinopoupinia, and Cristafrons, were also named. This assemblage includes the first notice of brachyurans from the Cretaceous of Antarctica; six species are described. The nephropid lobster Hoploparia stokesi (Weller), the most common decapod throughout the section, exhibits significant morphological change throughout its range from late Santonian or earliest Campanian to Paleocene; however, variation of key features is asynchronous. The raninid brachyuran, Cristafrons praescientis, is second in abundance to H. stokesi. The occurrence of Metanephrops rossensis and Munidopsis foersteri represents the oldest geological records for these genera and the recognition of species of Paguristes, Plagiophthalmous, Torynomma, and Necrocarcinus constitutes the first notice of these genera in Antarctica. Of those taxa that have living congenors, the species of Metanephrops, Linuparus, and Munidopsis occupied habitats at inner shelf depths in the Cretaceous whereas their extant descendants are restricted to outer shelf and bathyal depths. This diverse decapod fauna is dominated by genera that range into the Cenozoic and appears to be a pioneer assemblage.
Indiana utility plans to be coal-free by 2028 FacebookTwitterLinkedInEmailPrint分享Northwest Indiana Times:NIPSCO sent its new strategy for electricity generation and transmission to the Indiana Utility Regulatory Commission on Wednesday, formally submitting a plan to retire its coal-fired R.M. Schahfer Generating Station in Wheatfield and the Michigan City coal plant.The utility intends to replace coal with renewable sources, including solar and wind. NIPSCO President Violet Sistovaris said the decision to retire the four coal-fired generators at Schahfer by 2023 and one at Michigan City by 2028 was a result of the utility’s investigation of the most cost-effective, reliable and environmentally sustainable means to deliver power to its customers.Ultimately, the company expects the transition to renewable sources to save money — estimating total customer savings of $4 billion over 20 years. And, it will reduce its carbon emissions by 90 percent by 2028.“We see an opportunity to really invest in a balance of energy options and make energy more affordable and cleaner,” Sistovaris said. NIPSCO projects that, by 2023, 53 percent of its electricity will come from renewable sources, 24 percent from natural gas and 17 percent from coal. By 2028, renewable sources will constitute 65 percent of supply, with natural gas at 25 percent. The rest will come from purchases on the open market.More: NIPSCO submits blueprint for shift from coal to renewables