Lot 0149

Late Cretaceous Nostoceras Ammonite Fossils in Matrix

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Natural History - Acanthoceras Ammonite Fossil: Late Cretaceous Period, Cenomanian Stage, 100-94 millions years BP. An Acanthoceras sp. ammonite from Agadir, Morocco. 1.6 kg, 16.5cm (6 1/4"). Property of a Lincolnshire, UK, gentleman; acquired on t

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Fire Ammonite Fossil / Silver Pendant: **Originally Listed At $200** Africa, Madagascar, late Cretaceous, ca. 71 million years ago. This is a large and beautiful pendant made of a fossilized ammonite with iridescent hues, set in a sterling

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Natural History - Large Fossil Ammonite: Late Cretaceous Period, Cenomanian-Turonian Stages, circa 100- 90 million years B.P.. A freestanding example of a large Mammites nodosoides fossil ammonite. 3 kg, 20 cm (7 7/8 in.). From Morocco, Nort

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Natural History - South Dakota Fossil Ammonite Section: Late Cretaceous Period, 70 million years BP. A polished section of the Baculites compressus straight ammonite showing the structure; with label. 122 grams, 80mm (3"). Property of a Kent, UK collector;

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Large Double Agadir Fossil Ammonite: Cretaceous Period, 145-65 million years B.P. A pair of Mellitella sp. fossil ammonites on a matrix. 9 kg, 35.2 cm (13 5/8 in.). From Agadir, Morocco, North Africa. From a Cambridgeshire, UK, collectio

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FOSSIL. Dyrosaurus Crocodile Skulls and Bones.: Late Cretaceous period. In matrix with attached bones. By consignor provenance this was found in Morocco. Total approx. weight is 51lbs (gross). Accompanied by a custom stand. From a New Rochelle, NY

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Lg Opalized Fossil Baculite Table Sculpture: Baculites is an extinct genus of cephalopods with a nearly straight shell, included in the heteromorph ammonites. The genus, which lived worldwide throughout most of the Late Cretaceous, was named by

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Historic British and Other Fossil Collection: Cretaceous Period, 130-60 million years BP. A group of marine fossils comprising: a large ammonite in matrix; a pair of gastropods in matrix; a matrix containing several small bivalves; three very lar

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Natural History Fossil Fish and Ammonite Group: Cretaceous Period, 200-65 million years BP. Group comprising: a small ammonite, cut and polished in two halves, with two small fossil fish specimens, in matrix. 618 grams total, 3.2-14.7cm (1 1/4 - 5

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Fossilized Thrissops Fish & Ammonites in Matrix: Northwestern Europe, England, Weymouth, Lower Oxfordian / Kimmeridgian Formation, Late Jurassic, ca. 163.5 to 157.3 million years ago. A stunning fossil from a carnivorous fish, Thrissops, within a la

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Late Cretaceous Nostoceras Ammonite Fossils in Matrix

Item Details

Description

Africa, Madagascar, Late Cretaceous, ca. 100.5 to 65.5 million years ago. A superb and aesthetically fascinating pair of ammonite shells, excavated from the stone matrix they fossilized in. These are heteromorph ammonites in the Nostoceras genus, meaning they do not have the usual spiral shape of ammonite most people are familiar with; the ribbed shells are irregularly coiled and bends back on itself, giving it a unique appearance. The surrounding stone has been cut and shaped with a flat base to display. Size: 6" L x 4" W x 5" H (15.2 cm x 10.2 cm x 12.7 cm)

Provenance: Private Berthoud, Colorado, USA collection

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#181522

Condition

Professionally prepared and excavated. Some losses to exterior ribbed shell surface, but overall great preservation.

Buyer's Premium

26.5%

Late Cretaceous Nostoceras Ammonite Fossils in Matrix

Name: Late Cretaceous Nostoceras Ammonite Fossils in Matrix
SKU: 162358501
Price: 900 USD
Availability: InStock

Estimate $900 - $1,200

See Sold Price

Starting Price $450

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Artemis Gallery

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Louisville, CO, United States

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Auction Curated By

Bob DodgeOwner/Executive Director, Antiquities & Pre-Columbian Art

Sydelle DienstfreyPhD. Art History, Director, Fine & Visual Arts