Ordovician

Period: Lower Ordovician;Location: Ensjö Quarry, Kristiania, NorwayDimensions: 6.5 x 5.5 x 0.5 cmPhyllograptus is a genus of graptolites belonging to the order Graptoloidea, family Tetragraptidae.Fossils of this genus have been found from the Early Ordovician (475–473 million years ago) in sediments in Australia, Bolivia, Canada, Chile, China, New Zealand, Norway, Spain, Sweden, the United Kingdom, and the United States. The typical length of a colony of these leaf-shaped animals could reach up to 3.5 centimeters. They were passively mobile planktonic suspension feeders. Phyllograptus species are excellent index fossils for identifying rocks from the Ordovician.

Large slab with impressive trilobite Asaphopsoides yongshunensis (Liu, 1982).Uncommon!Age: Lower Ordovician, Tremadoc;Locality: Yongshun, Hunan Province, Xiangxi County, ChinaSize trilobite: 21 cm; slab: 27.5 x 22 x 1.5 cmColors in product photos may differ from those of the original item for technical reasons.

Age: SilurianLocality: Kamjanez-Podilskyj, Khmelnytskyi oblast, UkraineSize matrix: approx. 4 x 3,5 x 1,5 cmSize head: 2 x 2 cmEurypterids, also known as sea scorpions because of their pointed tails, evolved in the Ordovician. They were the dominant predators of the Upper Ordovician, Silurian and Lower Devonian seas and reached their greatest species diversity at that time.The most imposing representatives of this order could grow up to 3 m long, while Balteurypterus tetragonophtalmus only reached a few modest centimetres. The large group of eurypterids possessed a fin-like, powerful last pair of legs. They had two respiratory systems - book gills and gill plates - and trace fossils show that they were quite capable of walking on land. Unfortunately, they didn't quite make the leap, because like their close relatives, the horseshoe crabs, they used the tips of their legs to chew, which is much more efficient underwater than on land. Fish also increasingly competed with them in the sea, so that they retreated to the river systems. By the Permian, there were only a few species of these presumably largest known arthropods of all time.Colors on product photos may differ from those of the original specimen for technical reasons.

Bryozoans from the Upper Ordovician!Age: Upper Ordovician, Latonia Formation; Location: Carroll County, Kentucky, USASize: approx. 4 cmThe picture is a sample. You will get a similar specimen.Colors of the piece may differ from those in the picture for technical reasons.

Extremely rare!Currently: Arachnomorpha, order Cheloniellida Duslia insignis was first identified in 1893 on the basis of specimens from the upper Ordovician of the Letná Formation in the Prague Basin in Bohemia. Originally they were classified as polyplacophorous molluscs, but later this species was recognized as an arthropod and assigned to the burlingid trilobites. In the late 1980s, Chlupác considered Duslia to be a representative of the chelonielids, which are located between the "trilobitomorphs" and the chelicerates. Further studies argued for a phylogenetic link to the chelicerates (cf. Van Roy, 2006). Over the years, several hundred specimens have been offered for sale, mainly from the Djebel Tijarfaïouine in the El Caïd Rami region of Morocco. These specimens show only minor compaction or deformation and are fully articulated. The original cuticula has been replaced by a thick mineralization that ranges in color from pink to reddish-brown. The digestive tract is often visible, as in this case.The positive and negative impression of this specimen have been preserved. It is unaltered, no color enhancement or retouching!Age: Upper Ordovician, Sandbian;Locality: Bou Nemrou, El Caïd Rami, MoroccoSize fossil: 10 x 7 cm; matrix: approx. 17 x 15 x 4 cmColors in product photos may differ from those of the original specimen for technical reasons.

Very nice specimen!A whole trilobite, a positive and negative and an additional head on the backside of the positive.Age: Upper Ordovician, Lower Ashgill, Ktaoua group, Upper Argillite FormationLocality: Tazzarine des Aït-Atta, Tarhbalt (Maïder), Anti-Atlas region, MoroccoSize of the matrix: 4.5 x 4 x 1.5 cmSize of the trilobite: 4.3 x 2.5 cmThe colors of the original may differ slightly from those of the pictures due to technical reasons.

On display are fossilized feeding holes of unknown animals, which burrowed in arcs through the seabed searching for food.Further information in German on the formation of the trace fossil can be found here: SpurenfossilAge: Lower Ordovician, O. Tremadoc, Phycodes Shale;Locality: Saalfeld, Thuringian Forest, GermanySize: 9,5 x 5,5 x 2,3 cmColors on our photos may differ slightly from those of the original specimen due to technical reasons.

Period: Ordovician, Llandeilo;Location: Valongo, PortugalSize: 19 cm x 13,5 x 4 cmTrilobite: 3,5 x 5 cmThe colours of the images may differ from those of the original. 

Period: Ordovician, Llandeilo;Location: Valongo, PortugalSize: 13 cm x 11 cm x 2,5 cmTrilobite: 4,5 x 7 cmThe colours of the images may differ from those of the original. 

Light brown, almost pastry-colored large trilobite standing out beautifully from the mica-rich, silvery-grey silt matrix, which makes it popular with collectors. The deformation is tectonic and characteristic of this species from this region.The genus was buoyant and an active predator.Age: Middle Ordovician, Llandeilo (correlates with Darriwilium);Locality: Valongo, Norte region, PortugalSize trilobite: 8 cm; matrix: 13.5 x 10 Colors in photos may differ slightly from the original for technical reasons.   

Trilobite fragments of the genera Acidopsis sp. and Nieszbowskia sp. & Pygidien Asaphus sp. on kukkersite matrix.Age: Middle Ordovician;Location: Kohtla järvi, EstoniaMatrix size: 7 x 6 cm;   Colors on product photos may differ slightly from those of the original specimen for technical reasons.

Very nice specimen! With numerous trilobite remains.Age: Upper Lower Ordovician, Llandeilium;Locality: Llandrindod Wells, County Powys, Wales, Great BritainSize/matrix: approx. 16 x 11 x 2 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.