Results 31 to 40 of about 4,745 (171)
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
American Journal of Botany, Volume 113, Issue 9, September 2026.Abstract Premise The modern distribution of the southern cypresses, Callitroideae (Cupressaceae), reflects a classic Gondwanan distribution. The initial diversification of Callitroideae is estimated to have occurred during the Cretaceous, yet fossils from this period are rare, hampering our understanding of its early evolutionary history.
Kelly C. Pfeiler +5 more
wiley +1 more source
Cyrtodesmus ammonites Carl 1914
, 2020 <p> <i>ammonites</i> Carl, 1914b: 965 [<i>Trigonostylus</i>].</p> <p>Camelia, Kaffeepflanzung, 1800 m. One ♀.</p> <p>No specimens found in the MHNG.
Decker, Peter +5 more
core +1 more source
Taphonomic differentiation of Oxfordian ammonites from the Cracow Upland, Poland [PDF]
, 2012 Taphonomic analysis of Lower and Middle Oxfordian ammonites from the Cracow Upland, southern Poland (localities at Podłęże, Zalas, Młynka) revealed differences in ammonite preservation.
Kołodziej, Bogusław +3 more
core +1 more source
The Jurassic of North-East Greenland: Jurassic dinoflagellate cysts from Hochstetter Forland, North-East Greenland [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2004 Three sections in Hochstetter Forland, North-East Greenland, referred to the Jurassic Payer Dal and Bernbjerg Formations, have been analysed for dinoflagellate cysts.
Piasecki, Stefan, Stemmerik, Lars
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The Depositional Record, Volume 12, Issue 4, September 2026.An integrated facies, MS and XRF‐based approach applied to the Tithonian–Berriasian Sidi Khalif Formation (central Tunisia) resolves five Tithonian and eight Berriasian third‐order sequences, showing how mixed carbonate–siliciclastic shelves record coupled eustatic, climatic and tectonic controls and providing a transferable template for similar mud ...
Hamdi Omar, Adnene Lafi, Chokri Yaich
wiley +1 more source
Taphonomy of ammonites from the Santonian-lower Campanian Santa Marta Formation, Antarctica: sedimentological controls on vertically embedded ammonites [PDF]
, 2007 Different morphotypes of vertically embedded ammonoid shells are abundant in the 1-km-thick deposits of the Santa Marta Formation, Antarctica, that record the evolution of a deep-water delta system.
Olivero, Eduardo Bernardo
core +1 more source
Sutural simplification in Physodoceratinae (Aspidoceratidae, Ammonitina)
Estudios Geologicos, 1987 El análisis estructural de la interrelación concha-septo en algunos ammonites del Jurásico superior lleva a concluir que las simplificaciones suturales aparecidas a lo largo de la filogenia fueron originadas por alteraciones ocurridas en la morfología ...
A. Checa
doaj +1 more source
The Depositional Record, Volume 12, Issue 4, September 2026.Allostratigraphically defined mudstone packages show marked along‐strike thickness variation, interpreted to be related to shifting thrust activity in the orogen; loading cycles lasted about 750 kyr. Close to the orogen, the forebulge is mantled by shelly sandstone whereas far from the orogen, the forebulge is typified by organic‐rich mudstone ...
Omar N. Al‐Mufti +4 more
wiley +1 more source
Uppermost Albian biostratigraphy and chronostratigraphy
Carnets de Géologie, 2009 The Albian Stage is the highest chronostratigraphic unit of the Lower Cretaceous Series and underlies the Cenomanian Stage of the Upper Cretaceous Series.
Scott Robert W.
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