No. 94339295

No longer available
Ammonite - Fossilised animal - Leioceras opalinum, Leioceras comptum - 15 cm - 25 cm
Bidding closed
3 days ago

Ammonite - Fossilised animal - Leioceras opalinum, Leioceras comptum - 15 cm - 25 cm

Association de nombreuses ammonites dans un calcaire oolithique ferrugineux. Fossiles récoltés dans les déblais des anciennes mines de fer du secteur de Saint-Quentin-Fallavier / La Verpillière, Isère, France. (Site aujourd'hui inaccessible). La plaque contient plusieurs spécimens de Leioceras opalinum et de Leioceras comptum. Les ammonites font entre 2 et 4,5 cm de diamètre. La plaque est également composée de nombreux fragments plus gros. Seul un côté a été nettoyé. Période : Aalénien (Jurassique moyen) : 174,7 Ma - 170,9 Ma (cf. Charte Chronostratigraphique Internationale. Version 2023/06. Commission Internationale de Stratigraphie. www.stratigraphy.org). Etat de conservation : Les ammonites sont très bien conservées. Les spécimens ont été brossés à la cire liquide incolore. Plaque d'un seul bloc. C'est une magnifique et exceptionnelle pièce de collection. Poids : 1,465 kg Dimensions : 25 x 15 x 5 (en cm) Vendu sans support métallique. Ouvrage de référence pour déterminer les ammonites : RULLEAU, L. 2006. Biostratigraphie et paléontologie du Lias supérieur et du Dogger de la région lyonnaise. Ed. Section Géo-Paléo du C.E. Lafarge ciments, Lozanne.

No. 94339295

No longer available
Ammonite - Fossilised animal - Leioceras opalinum, Leioceras comptum - 15 cm - 25 cm

Ammonite - Fossilised animal - Leioceras opalinum, Leioceras comptum - 15 cm - 25 cm

Association of numerous ammonites in a ferruginous oolitic limestone.

Fossils collected from the spoil of the old iron mines in the Saint-Quentin-Fallavier / La Verpillière area, Isère, France. (Site now inaccessible).

The plate contains several specimens of Leioceras opalinum and Leioceras comptum.

The ammonites are between 2 and 4.5 cm in diameter. The plate is also composed of many larger fragments. Only one side has been cleaned.

Period: Aalenian (Middle Jurassic): 174.7 Ma - 170.9 Ma (see International Chronostratigraphic Chart. Version 2023/06. International Commission on Stratigraphy. www.stratigraphy.org).

State of preservation: The ammonites are very well preserved. The specimens have been brushed with colorless liquid wax. Plate in one block.

This is a magnificent and exceptional collector's item.

Weight: 1.465 kg
Dimensions: 25 x 15 x 5 (in cm)

Sold without metal support.

Reference work for determining ammonites:
RULLEAU, L. 2006. Biostratigraphy and paleontology of the Upper Lias and the Dogger of the Lyon region. Ed. Section Géo-Paléo du C.E. Lafarge ciments, Lozanne.

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