Results 71 to 80 of about 1,486 (212)
Paleoceanography and Paleoclimatology, Volume 40, Issue 4, April 2025.Abstract The Eastern Equatorial Pacific serves as a critical region for understanding the interplay between phytoplankton dynamics and global carbon cycling over glacial‐interglacial timescales. This study investigates the calcareous nannofossils from sediment core MV1014‐02‐17JC (17JC) and previously published diatom assemblage data from core MD02 ...
John A. Sarao Jr., Denise K. Kulhanek
wiley +1 more source
Picarola margalefii, gen. et sp. nov., a new planktonic coccolithophore from NW Mediterranean waters
Scientia Marina, 2004 A coccolithophore which is referred to a new genus Picarola gen. nov. and described as a new species Picarola margalefii sp. nov., has been observed from the NW Mediterranean. The description of the new species is based on Scanning Electronic Microscopy (
Lluïsa Cros, Marta Estrada
doaj +1 more source
, 2013 At present about one third of the carbon dioxide (CO2) released in the atmosphere from fossil fuel burning is absorbed by the oceans. The invasion of anthropogenic CO2 into the oceans increases seawater acidity and decreases carbonate ion concentration ...
E. Erba, G. Faucher, C. Bottini
core
Calcareous nannoplankton in Cretaceous rocks of the north-west part of the Crimean continental slope
, 2016 Вперше досліджено вапняковий нанопланктон у крейдових породах Кримського континентального схилу Чорного моря станцій 3-27, 5806, 5862, 5746, 5604.
Матлай, Л.М.
core +1 more source
Papers in Palaeontology, Volume 11, Issue 2, March/April 2025.Abstract Since its description in 1840, the toothed whale Squalodon was conceptualized as a transitional form between archaeocetes‐like Basilosaurus and the modern toothed whales (Odontoceti). The cranial morphology of Squalodon approximates that of modern odontocetes; however, their dental patterning more closely resembles that of archaeocetes ...
Margot D. Nelson +2 more
wiley +1 more source
Oligocene sawfish from Breg near Čeplje, Slovenia
Geologija, 2004 In paper a 168 mm long rostral tooth of a cartilaginous fish – sawfish from Breg near Čeplje is decsribed. In its proximal part the tooth is thick and broad, and in the distal part narrow, very flattened and thinned.
Vasja Mikuž, Jernej Pavšič
doaj
A practical approach to building a calcareous nannofossil knowledge graph
Geoscience Data Journal, Volume 12, Issue 1, January 2025.A knowledge graph is constructed for calcareous nannofossil UC zone, CC zone, and NC zone. The ontology of calcareous nannofossil biozones and species and a template approach for constructing the paleontological knowledge graph are proposed. This supports searching for specific bioevent ages using species synonyms and obtaining records of related ...
Hongyi Zhao +10 more
wiley +1 more source
CALCAREOUS NANNOPLANKTON OF THE SARMATIAN DEPOSITS OF UKRAINE
Collection of Scientific Works of the Institute of Geological Sciences of the NAS of Ukraine, 2009 Вперше наведено результати детального вивчення складу вапнистого нанопланктону з сарматських відкладів України. Викладено висновки автора щодо кореляції і зонування підрозділів сармату за наннопланктоном та визначення кліматичних і палеогеографічних умов в цей час.
openaire +3 more sources
B IOSTRATIGRAPHY OF SARAKHS (N.E. IRAN) AND NAFTE- SHAHR (N.W. IRAN) SECTIONS [PDF]
Journal of Sciences, Islamic Republic of Iran, 1992 It is the first time that biostratigraphic zonations of calcareous nannoplankton from Maestrichtian to Lower Tertiary deposits of Iran are reported. The required samples from the north-eastem and western parts of the country were selected from the stocks
doaj
Rivista Italiana di Paleontologia e Stratigrafia, 2016 In this work, calcareous nannofossils are identified for the first time in the uppermost Triassic sequence of the Lombardy Basin (Southern Calcareous Alps, Italy).
CINZIA BOTTINI +5 more
doaj +1 more source