European Journal of Taxonomy, 2022 The ammonoids of the suborder Gephuroceratina from the Roteisenstein (Red Ironstone) Formation of the area around Dillenburg (eastern Rhenish Mountains) are revised, mainly based on historical collections stored in the Museum für Naturkunde, Berlin. The
Dieter Korn, Jürgen Bockwinkel
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Sexual dimorphism in the Bathonian morphoceratid ammonite Polysphinctites tenuiplicatus [PDF]
Acta Palaeontologica Polonica, 2016 Asphinctites tenuiplicatus [M] and Polysphinctites secundus [m] from the Asphinctites tenuiplicatus Zone (Early Bathonian), are usually considered as a sexual dimorphic pair, although authors describe them as separate species.
Horacio Parent, Michał Zatoń
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Geologica Carpathica, 2016 This contribution focuses on the Perisphinctoidea ammonite taxa from the Upper Tithonian at Charens (Drôme, south-east France). Emphasis is laid on five genera that belong to the families Himalayitidae and Neocomitidae.
Frau Camille +3 more
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A new type of shell malformation caused by epizoans in Late Jurassic ammonites from Central Russia [PDF]
Acta Palaeontologica Polonica, 2016 A new type of shell damage on Late Jurassic ammonite Kachpurites fulgens is described. The new type of shell malformation consists of small elongated pits, arranged in groups on the surface of ammonite shell and concentrated near the terminal aperture ...
Aleksandr A. Mironenko
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The northernmost occurrence of the Lower Berriasian ammonite Pseudosubplanites grandis (Stramberk Limestone, Outer Western Carpathians, Czech Republic) [PDF]
, 2013 The first finding of the index ammonite Pseudosubplanites grandis (Mazenot, 1939) in the Lower Berriasian Štramberk Limestone (Outer Western Carpathians, northeastern Czech Republic) is important from the point of view of both the paleogeographical ...
Jirásek, Jakub +2 more
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Phylloceratina ammonoids in the Iberian Basin during the Middle Jurassic: a model of biogeographical and taphonomic dispersal related to relative sea-level changes [PDF]
, 1996 Phylloceratina and Lytoceratina ammonoids in the Middle Jurassic of the Iberian Chain (E. Spain) represent less than 1% of the whole of Ammonoidea. There are two intervals, however, in which their occurrence is remarkably constant: within the Upper ...
Fernández López, Sixto Rafael +1 more
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Taxonomy, evolutionary History and Distribution of the middle to late Famennian Wocklumeriina (Ammonoidea, Clymeniida) [PDF]
Fossil Record, 2000 Old collections, new records, and data from global literature are used for taxonomic revisions and for a new reconstruction of the evolutionary history of the triangularly coiled clymenids, the Wocklumeriaceae, and their ancestors.
R. T. Becker
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Aulatornoceras (Truyolsoceras) n. subgén. (Ammoinoidea, Tornoceratina) from the Devonian of the Cantabrian and Iberian mountains (NW & NE Spain) [PDF]
, 1988 [Resumen] El género Aulatornoceras comprendía hasta la actualidad un amplio espectro de morfologías y, entre ellas, conchas de especies con perfiles más comprimidos que el resto de formas congenéricas, poseyendo al mismo tiempo ombligos puntiformes. Esta
Montesinos López, José Román
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Ammonite stratigraphy of a Toarcian (Lower Jurassic) section on Nagy-Pisznice Hill (Gerecse Mts, Hungary) [PDF]
, 2010 In the Jurassic rocks exposed in a small abandoned quarry on the northwestern edge of Nagy-Pisznice Hill in the Gerecse Mts, fairly well preserved parts of a crocodile skeleton was found in 1996.
András Galácz +55 more
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Rivista Italiana di Paleontologia e Stratigrafia, 2017 A simple way to get accurate figures of the outline of cephalopod shells is hereunder described. It consists in photocopying carefully sectioned casts made of plaster.
MARCO BALINI
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