Results 81 to 90 of about 7,792 (266)

Comments on ‘Late Middle Pleistocene Wolstonian Stage (MIS 6) glaciation in lowland Britain and its North Sea regional equivalents – a review’

Boreas, EarlyView.
Divergent views debated over the past 20 years on the Wolstonian depositional record of Fenland and the Peterborough area have centred on whether there is evidence of a single (middle or late) glaciation or of both a middle and a late glaciation. A recent review promoted a single late Wolstonian glaciation, despite there being incontrovertible evidence
Harry E. Langford
wiley   +1 more source

New Permian and Triassic Scytinopteridae (Homoptera: Cicadomorpha) with elytrized tegmina, with notes on the origin of true bugs (Heteroptera) [PDF]

Кавказский энтомологический бюллетень
New Scytinopteridae with elytrized tegmina are described: Ooscyta chertoprudi gen. et sp. n. from the Late Permian of Karaungir, East Kazakhstan and Synelytra tverdokhlebovorum gen. et sp. n.
D.E. Shcherbakov
doaj   +1 more source

Phylogenetic reconciliation provides new insights into the evolutionary diversification of the glutamine synthetase gene family in seed plants

The FEBS Journal, EarlyView.
Phylogenetic analyses of glutamine synthetase (GS) in seed plants revealed that all three major evolutionary lineages (GS2, GS1a, and GS1b) must have been present in the common ancestor, with GS2 being the first lineage to diverge. Unlike GS1b, GS1a and GS2 are usually single‐copy genes, even though they underwent duplications that resulted in ...
Elena Aledo, Rafael Antonio Cañas, Francisco R. Cantón, Juan Carlos Aledo   +3 more
wiley   +1 more source

RioM‐1: A New Calcite Reference Material for U‐Pb LA‐ICP‐MS Geochronology

Geostandards and Geoanalytical Research, EarlyView.
Key Points RioM‐1 calcite was characterised for trace elements, U‐Pb geochronology, Sr and O isotopes using ID‐TIMS, LA‐ICP‐MS and SIMS. U‐Pb dates from ID‐TIMS and LA‐ICP‐MS across several independent laboratories returned identical results within uncertainty.
Marco Silva, Cristiano Lana, Ricardo Scholz, Ian Buick, Sandra Kamo, Nick M.W. Roberts, Axel Gerdes, Michael Wiedenbeck, Blair Schoene, Francisco E. Apen, Sean P. Gaynor   +10 more
wiley   +1 more source

Aquitardifer: A New Hydrogeologic Term for Geologic Materials with both Aquitard and Aquifer Properties

Groundwater, EarlyView.
Abstract We propose that a new term, aquitardifer, be added to the hydrogeologic nomenclature. Aquitardifer, a blend of the terms aquitard and aquifer, accounts for geologic materials that have properties of both as traditionally defined. Several examples of aquitardifers are provided, as is justification for and applicability of the term.
Anthony C. Runkel, Jessica R. Meyer
wiley   +1 more source

The sail-backed reptile Ctenosauriscus from the latest Early Triassic of Germany and the timing and biogeography of the early archosaur radiation.

PLoS ONE, 2011
BackgroundArchosaurs (birds, crocodilians and their extinct relatives including dinosaurs) dominated Mesozoic continental ecosystems from the Late Triassic onwards, and still form a major component of modern ecosystems (>10,000 species).
Richard J Butler, Stephen L Brusatte, Mike Reich, Sterling J Nesbitt, Rainer R Schoch, Jahn J Hornung   +5 more
doaj   +1 more source

A suture in time: The ontogeny of cranial suture morphology in mammals

Journal of Anatomy, EarlyView.
Mammal cranial sutures are important indicators of the biomechanical and developmental pressures acting upon the skull. Across three prominent sutures dividing the vault of the mammalian skull, divergent patterns emerge both taxonomically and developmentally.
Heather E. White, Marco Camaiti, Abigail S. Tucker, Akinobu Watanabe, Anjali Goswami   +4 more
wiley   +1 more source

Climate changes during the Early–Middle Triassic transition in the E. Iberian plate and their palaeogeographic significance in the western Tethys continental domain [PDF]

, 2015
Violeta Borruel‐Abadía, José López‐Gómez, Raúl de la Horra, Ana Belén Galán‐Abellán, José F. Barrenechea, Alfredo Arché, Ausonio Ronchi, Nicola Gretter, Mariano Marzo   +8 more
openalex   +1 more source

Siberigondolella gen. nov., a Boreal Early Triassic lanceolate conodont

TURKISH JOURNAL OF ZOOLOGY, 2019
In the Lower Triassic, at the time that segminate gondolellid conodonts defined the Tethyan regions, endemic segminiplanate gondolellid conodonts resembling the genus ?Neogondolella? dwelled in the northern latitudes. Without the multielement apparatus characteristic of the subfamily Neogondolellinae, these forms are phylogenetically incertae sedis and
Ali Murat KILIÇ, Francis HIRSCH
openaire   +4 more sources

The histology of rhynchosaur (Diapsida, Archosauromorpha) ankylothecodonty

Journal of Anatomy, EarlyView.
Dental evolution is a major topic in vertebrate palaeontology and provides key insights into the evolutionary history of several amniote clades. This study investigates rhynchosaur ankylothecodonty within the broader evolutionary context of Archosauromorpha.
Gabriel Mestriner, Gregory F. Funston, Sterling J. Nesbitt, Júlio C. A. Marsola, David C. Evans, Christian A. Sidor, Max C. Langer, Aaron R. H. LeBlanc   +7 more
wiley   +1 more source