Eurypterus/Balteurypterus tetragonophtalmus, Silurian; UKR
€16.00
Available, delivery time: 1-3 days
Product information "Eurypterus/Balteurypterus tetragonophtalmus, Silurian; UKR"
Eurypterids, 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 achieved maximum species diversity at that time.
The most impressive representatives of this order could grow up to 3 m long, while Balteurypterus tetrag. only reached a few modest centimetres. The large group of eurypterids possessed a fin-like, powerful last pair of extremities. 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. They also faced increasing competition from fish in the sea, so they withdrew to the river systems.
In the Permian, there were only a few species of what are probably the largest known arthropods of all time.
Age: Silurian, Bagovitsa Fm;
Locality: Smotrych (left tributary of the Dniester), near Kamyanez-Podilskyi, Khmelnytskyi oblast, western Ukraine
Size of head: 1 cm; matrix: approx. 4 - 8 cm
Colors on product photos may differ from those of the original specimen due to technical reasons.
Our pictures are for reference only. You will receive a piece of equivalent quality with your purchase.
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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.
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