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Specimens of polished perisphinctes from Tulear, Madagascar. Preisphinctes are an extinct species of ammonite which lived during the lower Jurassic period, 163 to 145 million years ago. Samples are available in two sizes and are supplied in a white card tray with an information label.
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Perisphinctes are an extinct species of ammonite which lived during the lower Jurassic period, 163 to 145 million years ago. The animal could grown from anywhere between 10 mm to over a meter in diameter, making them among the largest of the ammonites. Their shells exhibit excellent morphological features such as clear, distinct ribbing and occasionally, well defined ammonitic suture lines, among the near perfect coil shape, it could be said that perisphinctes are the text book ammonite. Their habitat ranged in the Jurassic oceans all over the world, however, Europe and Africa have yielded numerous specimens, these particular samples were found in Tulear, Madagascar, their off white, beige colour makes details even easier to view and are available in various sizes. They are of excellent quality and not to be missed, suitable for children with an interest in fossils as well as for educational use and serious collectors. These samples have also been polished to give them a smooth, attractive appearance.
Weight | 200 g |
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Specimen Size | 3" x 3", 4" x 3" |
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Perisphinctes are an extinct species of ammonite which lived during the lower Jurassic period, 163 to 145 million years ago. The animal could grown from anywhere between 10 mm to over a meter in diameter, making them among the largest of the ammonites. Their shells exhibit excellent morphological features such as clear, distinct ribbing and occasionally, well defined ammonitic suture lines, among the near perfect coil shape, it could be said that perisphinctes are the text book ammonite. These specimens are 1.5″ – 2″ in size and come supplied in a white card tray with information label.
49 in stock
• Geological Age: Albian epoch, lower Cretaceous, 110 to 102 million years old
• Location: Mahajanga Province, Madagascar
• Family: Ammanoid
• Species: Desmoceras
Desmoceras ammonite fossil specimens dated to the lower Cretaceous period, making them over 102 million years old, these samples were found in the Mahajanga Province, Madagascar and exhibit a silver coloured shell, very faint ribbing and a shallow coil. They are approximately 25 mm in diameter and also show iridescence on the shells surface. Suitable for older children, collectors, gifts and educational use, the sample will come supplied in a polythene bag with a label.
Out of stock
• Geological Age: Albian formation, Lower Cretaceous period, 110 to 102 million years old
• Location: Mahajanga Province, Madagascar
• Family: Ammanoid
• Species: Cleoniceras
Cleoniceras is an extinct species of ammonite, these fossil specimens are dated to the lower Cretaceous period, over 102 million years ago, they come from the Mahajanga Province, Madagascar, around 4 cm in size, polished and showing iridescence, they are suitable for older children, educational use and collectors, samples will come supplied in a polythene bag with label.
99 in stock
Highly polished, grey in colour . Due to being polished morphological features such as clear suture lines can clearly be seen, ideal gifts or collectors specimens.
• Geological Age: Jurassic period, Toarcian age, 182 to 174 million years ago
• Location: Ilminster, Somerset, UK
• Family: Ammanoid
• Species: Harpoceras
Harpoceras ammonite fossils found in Ilminster, Somerset, UK, these Jurassic period ammonites exhibited a typical coiled shell, though the ribbing is faint, they detail ammonitic suture lines upon closer inspection, varying in size, these particular species are beige cream colour and are available in a range of sizes and grades, supplied in a card tray with a label.
• Geological Age: Jurassic, Upper Lias, 200 to 180 million years old
• Location: Ilminster, Somerset, UK.
• Family: Ammanoid
• Species: Hildoceras
Hildoceras ammonite fossil specimens found in Ilminster, Somerset, UK, they exhibit a narrow with shallow ribbing and ammonitic suture lines, they lived during the Upper lias of the Jurassic period, 200 to 180 million years ago. Our samples are a dark beige colour and are available in various sizes and grades, ideal for educational use, collectors and children due to the features shown and their inexpensive cost. They fossil will come supplied in a card tray with a label.
Species Name: Hoplosaphites sp.
Family: Ammonite
Age: Jurassic, Bajocian
Location: Normandy, France
Out of stock
Stunning Cleoniceras ammonite specimens from Madagascar. These specimens have been polished helping to display their stunning suture lines which are highly visible on these ammonites. Cleoniceras is an extinct species of ammonite, dating to the lower Cretaceous period, over 102 million years ago. These specimens are available in three different sizes, and make a fantastic addition to any collection, whilst also being fantastic educational specimens on account of clearly showing the complex suture line of ammonites.
Small: Approx 10cm diameter
Medium: Approx 12cm diameter
Large: Approx 14cm diameter
Massive: Approx 17cm diameter
All measurements taken at the widest points
Arnioceras semicostatum fossil ammonite specimens dated to the lower Lias stage of the Jurassic period, around 160 million years ago. These samples are with a hard limestone matrix and were found in East Yorkshire, UK. They exhibit a ribbed, coiled shell and appear as many would expect of an ammonite, making these suitable for younger people with an interest in geology or fossils as well as collectors and educational bodies. The samples overall have a grey tone in colour though some are a faded brown and contain an amount of fossil shells per piece, increasing with size. Available in three sizes and supplied in a card tray with an information label.
50 in stock
A cut and polished Dactiloceras specimen, from the Yorkshire Jurassic coast. Shows calcite infilling of the chambers. Size approx 5cm dia.
Out of stock
Cut and polished ammonite pairs, collected from Madagascar. Ammonites are one of the most distinctive and popular fossils in the world due to their distinctive spiral shell. These specimens are examples of their shells that have been cut and polished in order to show their inner workings. These specimens include both Desmoceras and Cleoniceras which both lived during the Lower Cretaceous period, approximately 110 – 102 million years ago. Each section measures approximately 3cm and come packaged as a pair in a polythene bag with information label.
Species Name: Scaphites sp.
Family: Ammonite
Age: Cretaceous, Bear Paw Shale
Location: South Dakota
Out of stock
Grammoceras is an extinct genus of Ammonite, which existed during the Jurassic period. Distinct due to their disc-like curved shell and distinct, thin ridges. These ammonite specimens are very well preserved, making them a perfect tool for analysis,while also providing the quality to become a display piece in fossil collections, particularly those geared towards UK marine fossils. These particular specimens are of an unknown species and were found in Illminster, Somerset, UK. They range from 1″ – 2″ and come provided with a white card tray and information label.
12 in stock
Species Name: Dactylioceras Athleticum
Family: Ammonite
Age: Jurassic, Upper Lias, Toarcian
Location: Schlaifhausen, Germany
Out of stock
Species Name: Gulielmiceras gulielmi
Family: Ammonite
Age: Jurassic, Lower Lias
Location: Charmouth, Dorset
Out of stock
Species Name: Distichoceras bicostatum
Family: Ammonite
Age: Jurassic, Oxfordonian, 146 to 154 Million years old.
Location: Woodham, Buckinghamshire
Out of stock
A display specimen of an Dactylioceras commune positive with two negatives from Scarborough, UK. The sample is supplied in a 4″ x 3″ white card tray, it weighs roughly 209 grams and measures approximately 5.5 x 6 x 5 cm. This piece is perfect for any beginner fossil collector, but could also make an excellent teaching aid.
Out of stock
Species Name: Taramelliceras sp.
Family: Ammonite
Age: Jurassic, Oxfordonian, Oxford Clay
Location: Oxford
Out of stock
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