A new bivalve fauna from the Permian-Triassic boundary section of southwestern China

A new marine bivalve fauna from the continuous Upper Permian Longtan Formation to Lower Triassic Yelang Formation of the Zhongzai section in southwestern China is documented. Four bivalve assemblages spanning the Permian–Triassic boundary are recognized and regionally correlated in South China. The bivalve assemblages changed from elements dominated by Palaeozoic types to those dominated by Mesozoic types. Three new species, Claraia zhongzaiensis sp. nov., Claraia sp. nov. 1 and Claraia sp. nov. 2, are described

New early Triassic Lingulidae (Brachiopoda) genera and species from South China

Two new genera, Sinolingularia gen. nov. and Sinoglottidia gen. nov., together with three new species, Sinolingularia huananensis gen. et sp. nov., Sinolingularia yini gen. et sp. nov. and Sinoglottidia archboldi gen. et sp. nov., are described on the basis of a large collection of well-preserved specimens from several sections straddling the Permian - Triassic boundary in South China. <br /

The First Post-Kepler Brightness Dips of KIC 8462852

We present a photometric detection of the first brightness dips of the unique variable star KIC 8462852 since the end of the Kepler space mission in 2013 May. Our regular photometric surveillance started in October 2015, and a sequence of dipping began in 2017 May continuing on through the end of 2017, when the star was no longer visible from Earth. We distinguish four main 1-2.5% dips, named "Elsie," "Celeste," "Skara Brae," and "Angkor", which persist on timescales from several days to weeks. Our main results so far are: (i) there are no apparent changes of the stellar spectrum or polarization during the dips; (ii) the multiband photometry of the dips shows differential reddening favoring non-grey extinction. Therefore, our data are inconsistent with dip models that invoke optically thick material, but rather they are in-line with predictions for an occulter consisting primarily of ordinary dust, where much of the material must be optically thin with a size scale <<1um, and may also be consistent with models invoking variations intrinsic to the stellar photosphere. Notably, our data do not place constraints on the color of the longer-term "secular" dimming, which may be caused by independent processes, or probe different regimes of a single process

A silicified Early Triassic marine assemblage from Svalbard

peerreview_statement: The publishing and review policy for this title is described in its Aims & Scope. aims_and_scope_url: http://www.tandfonline.com/action/journalInformation?show=aimsScope&journalCode=tjsp2

Astrophysics in 2005

We bring you, as usual, the Sun and Moon and stars, plus some galaxies and a new section on astrobiology. Some highlights are short (the newly identified class of gamma-ray bursts, and the Deep Impact on Comet 9P/ Tempel 1), some long (the age of the universe, which will be found to have the Earth at its center), and a few metonymic, for instance the term "down-sizing" to describe the evolution of star formation rates with redshift

From the sorting table to the web: The NPAP research data portal for ceramics

This paper comes as a response to the publication of "Digital Data in Archaeology: The Database," by Harrison Eiteljorg, II, in the CSA Newsletter, XXV, 2; September, 2012. In this paper we present the database developed by the research group "New Perspectives on Ancient Pottery" (NPAP), of the University of Amsterdam, in 2007-2012. In presenting our project database, including its aims and user experiences, we want to tackle some of the questions posed by Mr. Eiteljorg

Entwurf einer Gliederung der pelagischen Sedimente des Trias-Systems

Volume: 104Start Page: 1271End Page: 130

Halos:Preliminary Report of the 2015 Field Survey and the 2016 Trial Trenches at Magoula Plataniotiki

This article offers a very brief report on the 2015 survey campaign around Halos that formed the conclusion of the revisit programme previously presented in this journal, followed by a somewhat longer preliminary presentation of the 2016 excavation season at Magoula Plataniotiki, which is also a continuation of previous work at the site reported in this journal. As in the past, the fieldwork was done by the universities of Groningen and Amsterdam and the Ephorate of Antiquities of Magnesia; in 2016, a delegation from the University of Alberta participated in the excavation as well. The survey season confirmed and refined results of the 2011-2013 campaigns. While the 2016 excavation season partly continued trenches opened in 2013, it also covered parts of the site that had not been explored yet. Three new trenches were laid out in areas where aerial photographs and geophysical research done in 2015 suggested the presence of features that could clarify the planning and chronology of the site. One of the new trenches explored the western edge of the site, which seems to be bordered by a pebble-paved street. This could not be dated yet. Another new trench indicates that the north-eastern part of the site, where geophysical research and aerial photographs show structures that do not follow the general orientation of streets and buildings further west, was abandoned in the Hellenistic period, while most other trenches indicate continuing habitation and other use. However, foundations of a large and possibly monumental structure encountered in an extension of one of the existing trenches indicate that even when shrinking, the Hellenistic settlement still contained impressive buildings. The intensive Classical and Hellenistic use of the site visible in all excavated areas does not seem have had a follow up, but in most trenches remains of later activities, apparently mainly related to reuse of materials, have been encountered