Results 71 to 80 of about 5,951 (224)
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.Abstract Marine carbonate carbon isotopes (δ13C), over orbital to multi‐million‐year timescales, provide critical insight into the carbon cycle connecting Earth's atmosphere, lithosphere, hydrosphere and biosphere. However, the influence of astronomical forcing on deep time carbon cycle dynamics remains poorly constrained.
Deyan Zhang +4 more
wiley +1 more source
Hyperspectral cathodoluminescence imaging of modern and fossil carbonate shells
, 2006 Optical cathodoluminescence (CL) is commonly used to identify diagenetically altered carbonate fossils, yet such an interpretation is problematic as present-day carbonate shells may also luminesce.
Martin, Robert +19 more
core +1 more source
Early Cambrian "soft−shelled" brachiopods as possible stem−group phoronids [PDF]
, 2009 Brachiopods and phoronids are widely recognised as closely related lophophorate phyla, but the lack of morphological intermediates linking the bivalved bodyplan of brachiopods with tubular phoronids has frustrated precise phylogenetic placement.
Butterfield, N.J. +3 more
core +1 more source
First Record of Aptian- Cenomanian Brachiopods from the Vezk Section (South of Yasuj, Iran) [PDF]
Journal of Sciences, Islamic Republic of Iran, 2017 Brachiopod faunas from the Aptian- Cenomanian Vezk section in southwesternIran comprise ten species in six genera, namely Sellithyris cenomanensis, Sellithyris tornacensis, Sellithyris phaseolina, Phaseolina phaseolina, Tropeothyris sp., Concinnithyris ...
T. Binazadeh
doaj
Stratigraphic significance of Devonian brachiopods of the Urals
Литосфера, 2017 The article considers the history of the formation of the regional stratigraphic scale of the Devonian system of the Urals, historically developed on the basis of the study of benthic fauna (mainly brachiopods).
Anita G. Mizens, Larisa I. Mizens
doaj +1 more source
Paleoceanography and Paleoclimatology, Volume 41, Issue 6, June 2026.Abstract The Laurasian Seaway comprises a N‐S oriented trans‐Pangaean corridor linking Tethys to the Boreal Sea during the Jurassic, and direction of water flow has been the subject of considerable debate. The Llanbedr (Mochras Farm) borehole, Cardigan Bay Basin, Wales, is a uniquely informative record that comprises an expanded deep‐marine silty ...
M. Jiang +7 more
wiley +1 more source
“Flames Over Persepolis”: New Scientific Evidence Supporting Historical Perspectives
Archaeometry, Volume 68, Issue 3, Page 421-433, June 2026.ABSTRACT This study investigates the burning of Persepolis Terrace, historically attributed to Alexander III in 330 bce. A review of classical accounts and excavation reports, combined with diagnostic surveys, confirms the fire's historicity and provides novel insights.
Maria Letizia Amadori +10 more
wiley +1 more source
Variation in size of living articulated brachiopods with latitude and depth
Geographical variations in animal characters are one of the main subjects for study in macroecology. Variation with latitude has received special interest.
Harper, E. M., Peck, L.. S.
core +1 more source
Rivista Italiana di Paleontologia e Stratigrafia, 2019 The Eurydesma Fauna characterizes the Late Pennsylvanian-Permian glacial-postglacial sediments recorded in several Gondwanan basins during the Late Paleozoic Ice Age (LPIA).
GABRIELA A. CISTERNA +4 more
doaj +1 more source