Uncoiled ammonite : Aegocrioceras raricostatum

North Africa, Agadir, Morocco, mid-Cretaceous period, ca. 112 to 97 million years ago. Heteromorph or "uncoiled" ammonites are a type of cephalopod that are much more rare than typical solid coil ammo

Item: Crioceras nolani Age: cretaceous, hauterivian stage Location: Nyons , France Size (fossil): 9.3cm Size (slab): 11.3 x 10.8 cm Weight: 500gr Uncoiled ammonite No Reserve: This lot starts at $1 an

Item: Crioceras nolani Age: Cretaceous, hauterivian stage Location: Nyons , France Size of the Slab: 8.5 x 7.5 cm Size of the fossil: 7.1 cm Weight: 240 gr This is an uncoiled ammonite onto its natura

Exceptionnelle ammonite opalescente Exceptional Opalescent Ammonite Placenticeras meeki Upper Cretaceous Pierre Shale, South Dakota, USA Long a key part of a major private collection, this beautiful P

Deux ammonites «ailées» sur matrice 'Winged' Ammonite Pair on Matrix Lytoceras cornucopae and Porpoceras sp. Jurassic Belmont, France One of the most popular of all decorative fossils i

Ammonite Specimen, 11" wide.

Oversized Acanthoceras ammonite fossil specimen, on a black rectangular base, apparently unmarked. Approximate Dimensions: overall h. h. 24", w. 14.75", d. 9".

Morocco, Mid-Cretaceous period, 112-99.6 million years ago. This RARE ammonite is of a type that is much more scarce than typical solid coil ammonites. This type here is called a heteromorph and it fe

Title: 41 cm Museum-display Ammonite Kranaosphinctes sp. Origin: Madagascar Date/Period: Jurassic, Oxfordian Dimensions: 41.5 cm diameter Description: Species: Kranaosphinctes sp. Age: Jurassic, Oxfor

North America, Canada, Alberta, Bearpaw formation, late Cretaceous, ca. 71 million years ago. A beautiful ammonite fossil has formed a fiery iridescence across the surface known as ammolite- an exceed

Title: Exceptional 41 cm ammonite - Kranaosphinctes sp. Origin: Madagascar Date/Period: Jurassic Size: 41.5 cm diameter Description: Species: Kranaosphinctes sp. Age: Jurassic, Oxfordian Locality: Sak

Très grande ammonite cornée sur matrice Very Large Horned Ammonite on Matrix Kranosphinctes sp. Late Jurassic Morondava River Basin, Atsimo-Andrefana Region of Toliara, Madagascar A fine, ma

North America, United States, South Dakota, Pennington County, Cheyenne River, Pierre Shale Formation, Lower Cretaceous, 100.5 to 66 million years ago. A superb, fossilized ammonite of the Placenticer

Russian, Jurassic Period. A pair of median-line cut Speetoniceras versicolor ammonite fossils, each displayed in cross section on a polished concretion; inner chambers with drusy pyrite crystals. Each

Agadir, Morocco, Mid-Cretaceous period, ca. 112 to 99.6 million years ago. This massive naturally-colored ammonite is a member of the Procheloniceras species Cretaceous ammonites from the coastal vill

Ammonite sculpturale sur matrice Sculptural Ammonite on Matrix Arietites bucklandi Jurassic Dijon, France Ammonites are amongst the most instantly recognizable fossils and, having existed on Earth for

Western Europe, Germany, Jurassic period, ca. 183 to 175.6 million years ago. A superb ammonite fossil (Arietites sp.) with excellent shell structure - prominent ribs and some suture patterning! The s

on acrylic stand; Provenance: The Estate of Henry and Lillian Mosauer; 25 inches wide; 8 inches deep; 19 inches high

A LARGE CRETACEOUS AMMONITE WITH WROUGHT METAL STAND, Texas, United States23 x 29 x 6

Agadir, Morocco, Mid-Cretaceous, 112 to 99.6 million years ago. This massive brown ammonite is a member of the Procheloniceras species Cretaceous ammonites from the coastal village of Agadir, Morocco.

Mounted on rectangular base. [25 3/4 x 18 x 6 inches overall including stand].

A large ammonite fossil, A large ammonite fossil, on a rectangular stone plinth, 76cm wide 18cm deep 61cm high

Huge double ammonite fossil specimen, Two beautifully preserved fossilized spiral shells on shale, mounted on natural stone base and slate plinth, 17"h x 14"l x 10"w (total), 12"dia x 7"d (larger), 7"

North Africa, Morocco, Mid-Cretaceous period, ca. 112 to 99.6 million years ago. A superb and aesthetically pleasing fossilized heteromorph ammonite, that was fully excavated- apart from some of the l