Results 51 to 60 of about 2,224 (181)

Aulatornoceras (Truyolsoceras) n. subgén. (Ammoinoidea, Tornoceratina) from the Devonian of the Cantabrian and Iberian mountains (NW & NE Spain) [PDF]

open access: yes, 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
core   +1 more source

Ammonite stratigraphy of a Toarcian (Lower Jurassic) section on Nagy-Pisznice Hill (Gerecse Mts, Hungary) [PDF]

open access: yes, 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
core   +1 more source

Upper Tithonian ammonites (Himalayitidae Spath, 1925 and Neocomitidae Salfeld, 1921) from Charens (Drôme, France)

open access: yesGeologica 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
doaj   +1 more source

A new type of shell malformation caused by epizoans in Late Jurassic ammonites from Central Russia [PDF]

open access: yesActa 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
doaj   +1 more source

?Jurassic and Cretaceous macrofossils from Sheet 266 (Marlborough) : autumn 2011 [PDF]

open access: yes, 2011
Macrofossils from surface and outcrop exposures of the Chalk Group on Sheet 266 (Marlborough) were collected in November 2011 in connection with the resurvey of that district.
Woods, M.A.
core  

Cenomanian ammonites from Santander (Cantabria) and Sopeira (Aragón, southcentral Pyrenees), northern Spain [PDF]

open access: yes, 2014
Ammonites del Cenomaniense de Santander (Cantabria) y de Sopeira (Aragón, Pirineos centro-meridionales), España septentrional. Se describen por primera vez ammonites del Cenomaniense superior (Cretácico) de los alrededores de Santander y de Sopeira ...
Bilotte, M., Kennedy, W. J.
core   +1 more source

Taxonomy, evolutionary History and Distribution of the middle to late Famennian Wocklumeriina (Ammonoidea, Clymeniida) [PDF]

open access: yesFossil 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
doaj   +3 more sources

Ammonoids of the middle/late Anisian boundary (Middle Triassic) and the transgression of the Prezzo Limestone in eastern Lombardy-Giudicarie (Italy) [PDF]

open access: yes, 2018
This study documents ammonoids with a precise stratigraphic control at the middle/late Anisian (Pelsonian/Illyrian) boundary from a new locality in eastern Lombardy-Giudicarie (Monte Guglielmo) and from classical sections in Giudicarie.
Brack, Peter   +3 more
core  

CAST PHOTOCOPYING: A SIMPLE METHOD FOR THE ANALYSIS AND THE ILLUSTRATION OF THE OUTLINE OF CEPHALOPOD SHELLS

open access: yesRivista 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
doaj   +1 more source

Suaritinae new subfamily and Galeanites garcense new genus and new species of the Upper Jurassic Perisphinctaceae ammonites

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
Suaritinae new subfamily and Galeanites garcense new genus and new species represent a group of the Superfamily Perisphinctaceae (Ammonoidea, Cephalopoda) with pairs of ribs joined in ventrolateral tubercles.
Abelardo Cantú-Chapa
doaj  

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