Results 51 to 60 of about 11,709 (248)
A New Approach for the Determination of Ammonite and Nautilid Habitats
PLoS ONE, 2014 Externally shelled cephalopods were important elements in open marine habitats throughout Earth history. Paleotemperatures calculated on the basis of the oxygen isotope composition of their shells can provide insights into ancient marine systems as well ...
I. Kruta, N. Landman, J. Cochran
semanticscholar +1 more source
Quarterly Journal of the Geological Society of London, 1903 Two ammonites belonging to the family Hildoceratidæ have been found by members of the Cotteswold Naturalists' Field-Club, and have been given to me to name. Both happen to be new forms; and they are of particular interest—one for the geological information which it gives, the other from a biological point of view.
openaire +2 more sources
A New Approach to the Accretive Growth of Surfaces Via Hyperbolical Kinematics
Mathematical Methods in the Applied Sciences, Volume 48, Issue 16, Page 15349-15363, 15 November 2025.ABSTRACT In the current work, we introduce the accretive growth of surfaces by using hyperbolical geometry. First, we describe hyperbolical kinematics along a generating curve to construct accretive surfaces having a hyperbolical cross‐section. The obtained surfaces are not only the ones having hyperbolical cross‐sections but also their material points
Gül Tuğ, Zehra Özdemir
wiley +1 more source
The Depositional Record, Volume 11, Issue 4, Page 1084-1106, September 2025.The Bisperode section is one of the most expanded and complete sections with shallow‐marine Oxfordian strata in the LSB. This study provides a reference record for shallow‐marine settings and allows for the correlation of the strata from the LSB with Oxfordian deposits distributed elsewhere in the world.
Deyan Zhang +3 more
wiley +1 more source
Ecological estimation of using ammonites in jewelry and interior goods
RUDN Journal of Ecology and Life Safety, 2011 Mineral composition has been studied in details, estimation of radiational characteristics of ammonites using in jewelry and interior goods has been conducted.
D A Petrochenkov
doaj
Taxonomy and palaeoecology of the Mesozoic family Duotaxidae Mikhalevich (Foraminifera)
Papers in Palaeontology, Volume 11, Issue 5, September/October 2025.Abstract This paper addresses the long‐standing taxonomic issue of the supra‐species classification of Mesozoic taxa with an agglutinated wall originally included in the genus Tetrataxis, the type species of which, Tetrataxis conica, ranges into the Palaeozoic and has a different wall texture.
Francesca Falzoni +5 more
wiley +1 more source
Papers in Palaeontology, Volume 11, Issue 5, September/October 2025.Abstract Ichthyosaurian faunas before and after the Pliensbachian stage of the Early Jurassic are known from numerous, often complete fossils. The two faunas are very different taxonomically, with only one of the pre‐Pliensbachian genera, but none of the species, persisting into the post‐Pliensbachian (Toarcian).
Dean R. Lomax +2 more
wiley +1 more source
Lower Cretaceous (Hauterivian-Albian) ammonite biostratigraphy in the Maestrat Basin (E Spain)
, 2014 A review of the stratigraphic distribution of ammonoid species in the Lower Cretaceous (Hauterivian-Albian) of the Maestrat Basin (E Spain) was carried out.
R. García +10 more
semanticscholar +1 more source
The Jurassic of Denmark and Greenland: Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2003 The Jurassic succession of the island of Bornholm in the Baltic Sea includes the Hettangian – lowermost Pliensbachian Rønne Formation, the Lower Pliensbachian Hasle Formation, the Upper Pliensbachian – (?)Lower Aalenian Sorthat Formation and the (?)Upper
Surlyk, Finn, Donovan, Desmond T.
doaj
Mining an Anthropocene in Japan: On the making and work of geological imaginaries
Transactions of the Institute of British Geographers, Volume 50, Issue 3, September 2025.Short Abstract This article addresses how the lithic and the drift might be reworked as an Anthropocene material outside of a chronostratigraphy. Revisiting the finding of a floating fern fossil at the Hashima mine, we delve into a complex array of Geological imaginaries, and undertake our own speculative work.
Deborah P. Dixon +2 more
wiley +1 more source