File:Eurypterus cf. lacustris (fossil sea scorpion) (Bertie Dolomite Group, Upper Silurian; Erie County, New York State, USA) 1.jpg

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English: Eurypterus cf. lacustris - fossil sea scorpion in dolostone from the Silurian of New York State, USA.

The eurypterids, or sea scorpions, are an extinct group of chelicerate arthropods. They have an elongated, scorpion-like body that could reach enormous sizes (2.5 to 3 meters!), with a nonmineralizing exoskeleton composed of chitinous material. They are generally found in shallow to very shallow water marine and marginal marine facies.

Shown here is Eurypterus, a classic example of this bizarre group of creatures. It, and other eurypterid species, is well represented in the famous Bertie Dolomite of New York State. The host rock is fine-grained dolostone (dolomudstone).

Classification: Animalia, Arthropoda, Chelicerata, Merostomata, Xiphosura, Eurypterida, Eurypteridae

Stratigraphy: Bertie Dolomite Group, Upper Silurian

Locality: unrecorded/undisclosed site in Erie County, western New York State, USA

See info. at:

en.wikipedia.org/wiki/Eurypterus
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Source https://www.flickr.com/photos/jsjgeology/49131088447/
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/49131088447. It was reviewed on 7 July 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

7 July 2022

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