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Manuel Quiring

Bellissimo enorme piastra con diversi esempliri di Orthoceras proveniente dal Marocco. Questi animali marini sono stati tra le prime forme viventi ad abitare il pianeta. Ritrovamento Sahara nord occidentale.
Gli Orthoceras sono molluschi cefalopodi estinti, appartenenti ad un gruppo ormai scomparso. Queste creature marine vivevano negli oceani diverse centinaia di milioni di anni fa, principalmente durante i periodi Ordoviciano e Siluriano. Il loro nome, che in greco significa “corno dritto”, si riferisce alla caratteristica forma della loro conchiglia conica e allungata. Questo guscio era diviso in ambienti, separati da tramezzi, e attraversati da un sifone.
Il guscio di Orthoceras è probabilmente la loro caratteristica più distintiva. Era costituito da aragonite, minerale che forma anche le conchiglie di molti molluschi attuali. Nel corso del tempo, e sotto l'effetto di processi geologici quali sedimentazione e mineralizzazione, queste conchiglie si fossilizzarono, dando origine agli esemplari che ammiriamo oggi.
I fossili di Orthoceras sono preziosi testimoni della vita marina di un'epoca passata. Il loro studio permette agli scienziati di ricostruire antichi ecosistemi, comprendere l'evoluzione delle specie e comprendere meglio i principali cambiamenti che hanno segnato la storia della Terra.

Ordovician (485.4 - 443.8 million years) - Morocco

Orthoceras - Fossilised animal - 27 cm

Fossils

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Size

S (10–40 cm)

XS (under 10 cm)

M (40–80 cm)

L (over 80 cm)

Dimensions

Height

Width

Depth

Object

Fossilised animal

Fossil tooth

Amber

Fossil skull

Fossil skeleton

Fossil matrix

Fossil teeth

Fossilised plant

Fossilised shell

Fossil fragment

Raw mineral

Necklace

Earrings

Fossilised jaw

Fossil bone

Taxidermy replica mount

Fossil cabochon

Carved skull

Metaphysical stones

Fossil carapace

Fossilised wood

Fossilised claw

Fossil mortality plate

Reconstructed skeleton

Fossil plate matrix

Country of origin

Morocco

Madagascar

Asia

North America

Indonesia

China

Netherlands

Myanmar

Brazil

Russia

Africa

Canada

Baltic states

Dominican Republic

Lebanon

Europe

Algeria

Hungary

Material

Silver

Gold-plated

Mineral

Plastic

Resin

Gender

Women

Unisex

Condition

Natural

Restored

Composed

Enhanced

Good condition

As new - unused

Reconstructed

Manipulated

Cast

Hand carved

Reassembled

Excellent condition - barely used with minimal signs of wear

Excellent condition

Excellent condition: barely used with minimal signs of wear

Good condition - used with small signs of aging & blemishes

Very good +

Period

Cretaceous (145 - 66 million years)

Cretaceous, Upper (100.5 - 66 million years)

Devonian (419.2 - 358.9 million years)

Paleogene, Eocene (56 - 33.9 million years)

Neogene (23.03 - 2.58 million years)

Cretaceous, Lower (145 - 100.5 million years)

Jurassic (201.3 - 145 million years)

Neogene, Miocene (23.03 - 5.33 million years)

Triassic (251.9 - 201.3 million years)

Quaternary, Pleistocene (2.58 - 0.0117 million years)

Jurassic, Lower (201.3 - 174.1 million years)

Jurassic, Upper (163.5 - 145 million years)

Ordovician (485.4 - 443.8 million years)

Carboniferous, Pennsylvanian (323.2 - 298.9 million years)

Jurassic, Middle (174.1 - 163.5 million years)

Cambrian (541 - 485.4 million years)

Quaternary, Holocene (0.0117 - 0 million years)

Triassic, Middle (247.2 - 237 million years)

Devonian, Middle (393.3 - 382.7 million years)

Carboniferous (358.9 - 298.9 million years)

Paleogene, Oligocene (33.9 - 23.03 million years)

Triassic, Lower (251.9 - 247.2 million years)

Quaternary (2.58 - 0 million years)

Silurian (443.8 - 419.2 million years)

Paleogene, Paleocene (66 - 56 million years)

Stone

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Amethyst

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Rhodolite

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Peridot

Certification

No laboratory report

Style

Paleolithic

Realism

Baroque

Faceted cut

Pear

Round

Cabochon cut

Oval

Exact colour

White

Labradorite

Mineral form

Freeform

Heart

Pearl surface quality

Moderately spotted

Lightly spotted

Clean

Size on item

54 (EU) / 14 (IT) / 6 ¾ (US)

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Orthoceras - Fossilised animal - 27 cm

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