Results 51 to 60 of about 4,277 (208)

Sutural simplification in Physodoceratinae (Aspidoceratidae, Ammonitina)

open access: yesEstudios 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 Abiod at Ellès (Tunisia): stratigraphies, Campanian-Maastrichtian boundary, correlation [L'Abiod d'Ellès (Tunisie) : stratigraphies, limite Campanien-Maastrichtien et corrélation]

open access: yesCarnets de Géologie, 2010
In central Tunisia near the village of Ellès is Wadi Ed Dam. There the Abiod Formation, underlain by the Kef marls and capped by the El Haria marls, crops out in an almost uninterrupted exposure about 286 m thick.
Robaszynski Francis, Mzoughi Moncef
doaj  

THE “UNKNOWN” GREEK PALEOENVIRONMENT AND FOSSILS: EVALUATING GEOGRAPHY CURRICULUM PROPOSALS FOR ELEMENTARY SCHOOL

open access: yesEuropean Journal of Geography, 2017
In this study we introduce teaching proposals to “inject” ammonite fossils, in the Geography syllabus, as evidence of Greek paleoenvironment, which at the moment is the only existing geoscience subject of Greek primary curriculum.
Stiliani Fragouli   +2 more
doaj   +2 more sources

MIDDLE JURASSIC BELEMNITES AND AMMONITES (CEPHALOPODA) FROM TELMA-DAREH, NORTHERN IRAN

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2013
Ammonites and belemnites from a Middle Jurassic section at Telma-Dareh (Alborz Mountains, northern Iran) are described. The lithology of the studied section consists of an alternation of marls and limestones attributed to the Dalichai Fm., overlying the ...
HORACIO PARENT   +5 more
doaj   +1 more source

Middle Pleistocene revelations: unravelling taphonomic processes in mammals including Mesotherium cristatum (Mesotheriidae, Notoungulata), Corralito Site, Córdoba Province, Argentina

open access: yesPalaeontology, Volume 68, Issue 4, July/August 2025.
Abstract Taphonomic studies of Cenozoic mammals are scarce. We report a study of the taphonomy of the Corralito site (Middle Pleistocene to Holocene), Córdoba Province, Argentina, which documents the last population of the South American native ungulate typotherid Mesotherium cristatum. We discovered two specimens of M.
Marcos Fernández‐Monescillo   +6 more
wiley   +1 more source

Zones d'ammonites et de foraminifères du Vraconnien au Turonien : Une comparasion entre les domaines boréal et téthysien (NW Europe / Tunisie centrale)

open access: yesCarnets de Géologie, 2008
Depuis la fin du 19ème siècle, l'intervalle comprenant l'Albien supérieur élevé, le Cénomanien, le Turonien et le Coniacien basal a été subdivisé d'abord en zones d'ammonites puis, à partir du milieu du 20ème siècle, en zones de foraminifères ...
Amédro Francis, Robaszynski Francis
doaj  

A review of helochelydrid shell material from late Albian to early Cenomanian greensands of Southern England, United Kingdom

open access: yesThe Anatomical Record, Volume 308, Issue 6, Page 1633-1645, June 2025.
Abstract A number of helochelydrid turtle shell remains were recovered over the course of the 19th century from mid‐Cretaceous sediments throughout Southern England, including the poorly figured and described types of Trachydermochelys phlyctaenus from the Cambridge Greensand of Cambridgeshire, Plastremys lata from the Upper Greensand of the Isle of ...
Walter G. Joyce
wiley   +1 more source

OCCURRENCE OF LIASSIC FAUNAS AT WAANEY (UANEI) PROVINCE OF BAY, SOUTH—WESTERN SOMALIA

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
The sequence exposed at Waaney (South—western Somalia) consists, from bottom to top, of the following horizons: A) Blackish marly limestones, thickness 20 m; B) Grey and greenish marls and shales, thickness 10 m; C) Vacuolar yellowish—grey limestone ...
PAOLO CANUTI   +3 more
doaj  

Ammonites and Chronology of the Jurassic [PDF]

open access: yesNature, 1956
Jurassic Geology of the World By Dr. W. J. Arkell. Pp. xiv + 806 + 46 plates. (Edinburgh and London: Oliver and Boyd, Ltd., 1956.) 105s. net.
openaire   +1 more source

Heritage of Tethyan Oceanic Transform Faults Within Alpine Orogens: Paleomagnetic Evidence From the Shkoder‐Peja Transverse Zone (Northern Albania)

open access: yesTectonics, Volume 44, Issue 6, June 2025.
Abstract The Shkoder‐Peja transverse zone (SPTZ) of Northern Albania marks the boundary between the Dinarides and Albano‐Hellenides and is marked by a ∼100 km SW‐ward shift of the ophiolitic nappe front. The SPTZ has been variably interpreted as a paleogeographic inheritance, a dextral strike‐slip fault, the hinge of the clockwise (CW) rotating Albano ...
F. Feriozzi, G. Siravo, F. Speranza
wiley   +1 more source

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