Sold2022Exceptionnelle ammonite opalescente Exceptional Opalescent AmmoniteExceptionnelle 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 PSee Sold Price
Sold2018Rare Mesozoic Open Coil Heteromorph Ammonite FossilNorth 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 ammoSee Sold Price
Sold2022Deux ammonites «ailées» sur matrice 'Winged' Ammonite Pair on MatrixDeux 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 iSee Sold Price
Sold2024ACANTHOCERAS AMMONITE FOSSIL SPECIMEN ON BASEOversized Acanthoceras ammonite fossil specimen, on a black rectangular base, apparently unmarked. Approximate Dimensions: overall h. h. 24", w. 14.75", d. 9".See Sold Price
Sold2015Cretaceous Heteromorph Ammonite Fully ExposedMorocco, 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 feSee Sold Price
Sold202241 cm Museum-display Ammonite Kranaosphinctes sp.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, OxforSee Sold Price
Sold2023Fossilized Ammonite Shell w/ Fiery Iridescent AmmoliteNorth 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 exceedSee Sold Price
Sold2021Exceptional 41 cm ammonite - Kranaosphinctes sp.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: SakSee Sold Price
Sold2022Très grande ammonite cornée sur matrice Very Large Horned Ammonite on MatrixTrès 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, maSee Sold Price
Sold2022Large Fossilized Ammonite Placenticeras Meeki in MatrixNorth 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 PlacenticerSee Sold Price
Sold2017Pair Speetoniceras Ammonites with Drusy PyriteRussian, 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. EachSee Sold Price
Sold2016Superb Massive Dinosaur-Era Cretaceous AmmoniteAgadir, 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 villSee Sold Price
Sold2022Ammonite sculpturale sur matrice Sculptural Ammonite on MatrixAmmonite 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 forSee Sold Price
Sold2023Large Jurassic Fossilized Arietites AmmoniteWestern 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 sSee Sold Price
Sold2021FOSSIL AMMONITEon acrylic stand; Provenance: The Estate of Henry and Lillian Mosauer; 25 inches wide; 8 inches deep; 19 inches highSee Sold Price
Sold2015A LARGE CRETACEOUS AMMONITE WITH WROUGHT METAL SA LARGE CRETACEOUS AMMONITE WITH WROUGHT METAL STAND, Texas, United States23 x 29 x 6See Sold Price
Sold2016Massive Mesozoic Golden Brown Fossil AmmoniteAgadir, 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.See Sold Price
Sold2018Fossilized Ammonite SpecimenMounted on rectangular base. [25 3/4 x 18 x 6 inches overall including stand].See Sold Price
Sold2022A large ammonite fossil,A large ammonite fossil, A large ammonite fossil, on a rectangular stone plinth, 76cm wide 18cm deep 61cm highSee Sold Price
Sold2023Huge double ammonite fossil specimenHuge 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"See Sold Price
Sold2022Rare Fossilized Ammonite Open Coil HeteromorphNorth 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 lSee Sold Price
Sold2022LARGE 19" DIAMETER AMMONITE FOSSILFossil on stand. Dimensions: H 18" x W 19“ x D 4“ Condition: Few losses and breaks; appears to have repair to crack down center, as shown in photos, more visible on back. Structurally sound, alongSee Sold Price
Sold2023Large Fossilized Ammonite ClusterLarge Fossilized Ammonite Cluster Display Panel on Stand the museum-quality cluster displayed on an acrylic stand, panel h. 48", w. 32", stand h. 65", w. 32", together with a small fossilized OrthocerSee Sold Price
May 19Heartland Artifact Auctions Inc4.1/4" Highly Polished Split Ammonite Fossil, beautiful color, with quarts inclusionsUS$10(1 bid)
3 days LeftUniques and Antiques, Inc.2pc craft jewelry. Brass belt buckle with stone. HPS Ammonite Fossil and copper pendant necklace. CoUS$30
1 day LeftNeo FineArts IncRare Natural Fossilized Jurassic Ammonite Fossil Specimen with Small Leather BagUS$40
May 18Treasure of Gems & JewelryNatural Unheated Yellow Brown Ammonite Fossil 161.28 Ct. 2 Pcs. From MadagascarUS$1