KOCAELIA GEN. N. (FAMILY BEYRICHITIDAE) FROM MIDDLE ANISIAN
The new genus Kocaelia, with Aspidites toulai (Arthaber) as a type species, is here described. Based on the involute and compressed shape, occurrence of straight to slightly sinuous ribs and subammonitic suture in mature individuals the genus Kocaelia is
NERINA FANTINI SESTINI
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Analysis of septal spacing and septal crowding in Devonian and Carboniferous ammonoids
Septal crowding is widely known as a sign of maturity in conchs of ammonoids and nautiloids. However, reduced septal spacing may also occur as a consequence of adverse ecological conditions. Here, we address the question how septal spacing varied through
Sophie Marie Beck +3 more
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Ammonite faunas from condensed Cenomanian-Turonian sections ('Tourtias') in southern Belgium and northern France [PDF]
In southern Belgium (Mons Basin and Tournai region) and northern France (area between Lille, Valenciennes and Maubeuge), condensed sequences have been referred to as 'tourtias' since the start of the nineteenth century.
Amedro, F. +3 more
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The gaudryceratid ammonoids from the Upper Cretaceous of the James Ross Basin, Antarctica [PDF]
We describe new material of the subfamily Gaudryceratinae in Antarctica, including five new species: Gaudryceras submurdochi Raffi and Olivero sp. nov., Anagaudryceras calabozoi Raffi and Olivero sp.
María E. Raffi +2 more
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The distribution of the ammonite Gravesia (Salfeld, 1913) in the Kimmeridge Clay Formation (Late Jurassic) in Britain [PDF]
Species of the ammonite Gravesia (Salfeld, 1913) have a widespread distribution in Europe over a relatively narrow stratigraphical range in the late Kimmeridgian and early Tithonian stages.
Etches, S.M., Gallois, R.W.
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Trans-Tethyan correlation of the Lower–Middle Cenomanian boundary interval; southern England (Southerham, near Lewes, Sussex) and Douar el Khiana, northeastern Algeria [PDF]
A 480 m section of marls with widely separated levels of nodular limestone in the Fahdene Formation north of Bou Khadra in Tebessa Province, northeastern Algeria, spans the Lower/Middle Cenomanian boundary.
Gale, Andrew S., Kennedy, William J.
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VI.—On Cretaceous Ammonoidea from Angola, collected [PDF]
The Ammonoids described in the present paper were placed first of all, for study, in the hands of Mr J. M. Wordie, whose departure, however, as geologist with Sir E. Shackleton's Antarctic Expedition prevented the completion of the work. A preliminary list of identifications by Mr Wordie included a number of forms of “Schloenbachia” especially “S ...
J. W. Gregory +2 more
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TAXONOMY,STRATIGRAPHY AND PHYLOGENY OF THE NEW GENUS LANCEOPTYCHITES (AMMONOIDEA, ANISIAN)
For the first time a population analysis of compressed Ptychitidae (Ammonoidea) bed-by-bed collected from Prezzo Limestone (Upper Anisian, Southern Alps) is performed.
MARCO BALINI
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Mezozoós (triász, jura) faunadúsulások őskörnyezeti értelmezése hazai példákon = Environmental interpretation of Mesozoic (Triassic, Jurassic) faunal diversifications: Hungarian case studies [PDF]
A Balaton-felvidék triász rétegsorában az ammonoidea, bivalvia és brachiopoda faunák diverzitása jelentős változásokat mutat. A rövid kora-triász felvirágzás összhangban van a globális bioszféra eseménnyel.
Dulai, Alfréd +3 more
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MIDDLE TRIASSIC CERATITIDS (AMMONOIDEA) COLLECTED BY C. RENZ FROM HYDRA (GREECE)
This paper is focused on the description of an assemblage of ceratitids collected more than 50 years ago by C. Renz from the Han-Bulog Limestone of Hydra (Greece), up to the present never described.
MARCO BALINI
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