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Aeogocrioceras sp ammonite fossil specimen measuring 105 mm wide, this species is known as heteromorph ammonite and is characterised by its unique, uncoiled shell as opposed to the tight spiral shape commonly seen in ammanoid fossils. It is dated to the Lower Cretaceous, Hauterivian Stage, around 135 million years ago and come from Resse Pit, Hannover, Germany. Excellent for serious collectors m the sample comes with an information label and stand for display.
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Aeogocrioceras sp were an interesting species of ammonite which exhibited uncoiled shells to various extents, they belong to the ancyloceratina suborder, with this particular group with uncoiled shells known as heteromorph ammonites and could be further identified by their cytocone shell, meaning the shell did not touch at any of its surfaces, instead being open. They began to appear in the fossil record during the Jurassic period 199 million years ago, but became quite abundant during the Cretaceous period up until their extinction during the K–Pg extinction event 65 million years ago. It is understood from an evolutionary perspective that the shell shape likely would not have helped the animal to be a particularly good swimmer and it is assumed that they awkwardly swam their way around with not too much control. These particular ammonites are known as aeogocrioceras, though we have been unable to determine the exact species, they are dated to the Lower Cretaceous, Hauterivian Stage, around 135 million years ago and come from Resse Pit, Hannover, Germany. This particular specimen measures 110 mm at it’s widest point (110 mm wide on matrix) and comes supplies with a stand and information label. An excellent items for serious collectors, especially those concentrating on various ammonite species, the specimen in the image will be the item you receive.
Weight | 2000 g |
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Tea Green Marl. A greenish grey dolomitic mudsone from the Triassic of Gloucestershire.
50 in stock
Carrstone is a sedimentary rock which has a distinct, rusty red colour. These particular specimens found in Wesctott, Surrey formed during the Cretaceous period, a friable rock, it is iron rich, obtaining its colour from leaching. Used commonly as a building stone, the samples we have available have various size options and come supplied in a card tray with a label.
50 in stock
Round plastic tubs or pots made, clear and easily seen through, they are ideal for the safe storage of many small items such as gemstones, plants, sediments, soil, hobby items and more. They measure 46 mm in diameter and are 23 mm high. Supplied with a tight snap shut lid.
Kaolinite is a clay mineral specimen which is used extensively in industry, it is a soft, fragile mineral and is also known as China clay. Formed form the breakdown of feldspar minerals, these samples come from Cornwall, UK and is available in 2 sizes, supplied in a card tray with a label.
Out of stock
Plastic plate stands which are ideal for holding mainly flat items, such as plates, agate slices and other cut and polished mineral slabs. However, other items fit on them just as well, the parts come in two pieces and twist together making a single, robust clear stand. These stands are small and measure 50 mm tall with a 70 x 40 mm base.
30 in stock
Iceland spar mineral specimens from Santa Eulalia, Chihuahua, Mexico, samples are crystal clear, exhibit perfect rhombic shape and excellent double refraction. They are available in 2 sizes only and will come supplied in a card tray with a label.
20 in stock
Plastic plate stands, also used for displaying mineral slice specimens such as Agate. The stands fold out and become free standing with a sturdy base. The width of the stand is also adjustable due to the small clip which connects the two spreading legs together.
A pack of 3 Power Tank Pens, they work underwater, upside down and on wet paper. Size 1.0 tip. These pens are ideal for field work use, available in three different colours.
Out of stock
Carboniferous Mudstone found in Lancashire supplied in a card tray with a label.
300 in stock
Orthocalse feldspar mineral specimens from Evje, Norway. It exhibits a pale pink, white or pale grey colouration with excellent cleavage planes with rhombic crystal forms, a common mineral found in granites and rhyolites, orthoclase belongs to the feldspar family of minerals and can be found all over the world. Specimens are available in various sizes and come supplied in a card tray with an information label.
Out of stock
Dolomite crystal beds, pink in colour form Morocco, the presence of manganese results in a pale pink hue, these mineral specimens also have larger crystals than the UK material and are higher quality. Available in various optional sizes, supplied in tray with a data label.
50 in stock