Natural History - British Pachylytoceras Ammonite

Jurassic Period, Toarcian Stage, 182-174 million years B.P. Comprising four Dactylioceras commune sp. specimens in matrices. 467 grams total, 50-68 mm (2 - 2 5/8 in.). Found Whitby, UK. Ian Wilkinson

Jurassic Period, Toarcian Stage, 182-174 million years B.P. Comprising two opened nodules showing the negative and positive of Dactylioceras commune fossil. 709 grams total, 65-89 mm (2 1/2 - 3 1/2 in

Jurassic Period, circa 200-190 million years B.P.. The matrix with two Dactylioceras tenuicostatum fossil ammonite specimens. 1.6 kg, 14 cm (5 1/2 in.). From the Holderness Coast, Yorkshire, UK. [No R

Jurassic Period, circa 190 million years B.P. An amorphous matrix displaying fossil Dactylioceras spp. ammonites to both faces, together with bivalves. 521 grams, 13.7 cm (5 3/8 in.). From North Yorks

Jurassic Period, Sinemurian, circa 200 million years B.P.. Showing the partial remains of a Eteoderoceras sp. fossil ammonite. 982 grams, 14.5 cm (5 3/4 in.). From North Yorkshire, UK.

Jurassic Period, circa 180-185 million years B.P.. Presenting an Amaltheus stokesi fossil ammonite in a matrix, together with other fossil inclusions. 1.2 kg, 17.5 cm (6 7/8 in.). From Hawsker, North

350-100 million years BP. A group of ten British ammonites of mixed species, five accompanied by catalogue cards, two of which have Natural History Museum identification labels. 3.39 kg, 60-120mm (2 1

Middle Jurassic Period, 174-163 million years BP. A Clypeus ploti sea urchin fossil from Cheltemham, Gloucestershire, UK; small collector's information sticker to the base. 201 grams, 80mm (3 1/4"). F

1844 BUTTERFLY Natural History British Butterflies Duncan Color Illustrated ART James Duncan was a 19th-century Scottish naturalist most known for his work in entomology in natural history, including

1840 BUTTERFLY Art Natural History British Butterflies Duncan Color Illustrated James Duncan was a 19th-century Scottish naturalist most known for his work in entomology in natural history, including

Upper Jurassic Period, 170 million years BP. A Harpoceras elegans ammonite from Somerset, UK; mounted on a custom-made stand. 540 grams, 16.5cm including stand (6 1/2"). Property of a Lincolnshire, UK

Carboniferous-Cretaceous Period, circa 305-113 million years B.P.. Comprising a mixed group of eight fossils in eight card trays, different species and types including: Rugose Coral from Toddington, D

Jurassic Period, circa 200-145 million years B.P. Comprising fourteen fossilised rostra. 123 grams total, 31-93 mm (1 1/4 - 3 5/8 in.). Found on the Yorkshire coast, UK. Ian Wilkinson collection, Nott

Pleistocene, 1 million years BP. A group of three Bison bonasus bison vertebrae; mounted on a custom-made display stand. 869 grams, 33cm wide including stand (13"). From an old Bristol palaeontologica

A fine example of specular haematite surmounted by a double-terminated smoky quartz crystal, on botryoidal haematite, from the classic Cumbria, UK, locality; in old white card tray with old Gregory, B

Carboniferous Period, circa 310 million years B.P. A group of three fern specimens including Alethopteris sp. and Sphenopteris laurenti. 281 grams total, 76-87 mm (3 - 3 3/8 in.). From the Middle Coal

Two fluorite specimens, one displaying a matrix free, cloudy-transparent, deep green coloured crystal with bruising to one quoin, the second exhibiting pale mauve cubic crystals over white prismatic q

Jurassic Period, 201-145 million years BP. A group of cut and polished ammonite halves revealing the inner chambers, two in old white card trays with A.B. Cotterill Collection, Wollaton, Nottingham, U

A fine specimen of mauve fluorite crystals over an orange-brown matrix surface. 530 grams, 10cm (4"). Ex Dr M. G. 'Sam' Weller, MBE, collection, Cornwall, UK; from Blackdene Mine, Weardale, UK, suppli

Ammonoidea coiled shell cephalopod, probably Devonian to late Cretaceous period. [9 1/4 x 12 1/2 x 3 3/4 inches].

Jurassic Period, circa 200 million years B.P. Promicroceras planicosta with iron stained surface giving a beautiful contrast in colour, from the Lower Lias, Obtusum Zone. 42.53 grams, 67 mm (2 3/5 in.

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

Jurassic Period, 199-145 million years B.P. Comprising a composite of various sized ammonites with polished upper surface. 778 grams, 23 cm wide (9 in.). From Madagascar. From a Lincolnshire, UK, coll

The remains of an extinct marine creature from the Jurassic period fossilized in limestone. This Nautilus style shell form features a tight spiral and ribbed exterior. Total weight ~ 2470 grams. No ap