Results 131 to 140 of about 16,469 (254)

The ammonite-conodont association in the Meekoceras beds of Northeast Nevada [PDF]

open access: yes, 1974
An association of ammonites and conodonts was discovered concentrated in thin lenticular limestone beds interbedded with siltstones in the Lower Triassic Thaynes Formation in northeastern Nevada.
Clum, Eric E.
core  

Isotopic evidence concerning the habitat of Nautilus macromphalus in New Caledonia. [PDF]

open access: yesPLoS One, 2022
Tajika A   +4 more
europepmc   +1 more source

La diferenciación paleogeográfica de la Cuenca Catalana al principio del Jurásico Medio. [PDF]

open access: yes, 1998
Se propone un nuevo sistema de unidades litoestratigráficas, válido para los materiales del Toarciense, Aaleniense y Bajociense de la Cuenca Catalana. Las pautas de distribución de estas unidades litoestratigráficas y las variaciones de facies a escala
Fernández López, Sixto Rafael   +4 more
core   +1 more source

The first Jurassic coelacanth from Switzerland. [PDF]

open access: yesSwiss J Palaeontol, 2022
Ferrante C, Menkveld-Gfeller U, Cavin L.
europepmc   +1 more source

The first 40Ar–39Ar date from Oxfordian ammonite-calibrated volcanic layers (bentonites) as a tie-point for the Late Jurassic

open access: green, 2013
Pierre Pellenard   +5 more
openalex   +2 more sources

Nouveaux biohorizons et propositions pour le découpage biozonal ammonitique du Barrémien supérieur du Sud-Est de la France [New biohorizons and proposal for a revision of the ammonite biozonation of the Upper Barremian of southeastern France]

open access: yesCarnets de Géologie, 2008
A new ammonite biozonal scheme is proposed for the Upper Barremian of southeastern France. It takes into account faunal changes, sequence stratigraphy and historical data. Four new biohorizons are proposed.
Bert Didier   +2 more
doaj  

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