EURYPTERUS LACUSTRIS-POSITIVE/NEGATIVE- EURYPTERID-(9")-SEA SCORPION-440 M.Y.O.!

Description

You are looking at a really beautiful "extremely rare & very unique" LARGE (approximately (9") around the outside curvature) EURYPTERUS LACUSTRIS fossil which dates back to the Silurian Period approximately 440 million years ago. The EURYPTERUS LACUSTRIS usually range in size from (6" to 9") overall length which makes this particular fossil especially collectible. What makes this fossil so different and special from the few other similar, but smaller fossil specimens that you may see on eBay, or elsewhere on the Internet is that it is a (2) matrix dense dolomite (type of limestone) slab "Positive/Negative" specimen. In addition, this fossil was found and excavated in CANADA rather than in NEW YORK state where it seems the majority of EURYPTERID/EURYPTERUS fossils for sale originate from.
The information that I have about it states the following-
EURYPTERUS LACUSTRIS
(POSITIVE/NEGATIVE)
WILLIAMSVILLE "A" WATERLIME
SILURIAN PERIOD
BERTIE GROUP
FORT ERIE, ONTARIO
Both matrix dolomite limestone slabs are quite heavy weighing close to 15 lbs. in total weight. The larger slab measures approximately 8" x 7-3/4" and varies between 1-1/2"-2" in thickness.
The smaller slab measures approximately 6-1/2" x 8" and is approximately 1-1/2" thick.
The prosoma (head) of this specimen has (2) compound eyes visible and a few remnants of what appear to be walking legs. Under proper lighting conditions and magnification these details can be viewed even better. The mesosoma(pre-abdomen)clearly show the swimming legs with paddles.
The metasoma(post-abdomen) contains the sharp pointed telson which led many paleontologists to characterize the Eurypterus as a "sea scorpion" when in reality the closest living relative to this ancient arthropod is the horseshoe crab.
Since this fossil arthropod is darker in color than the surrounding matrix, using proper lighting and magnification really makes the features of its anatomy stand out and be appreciated even more. This non-fragmented EURYPTERUS is from an old fossil collection. If you are seeking out a "high quality" and  "museum-grade" EURYPTERID/EURYPTERUS specimen, this is a rare opportunity to acquire one of the nicest ones currently available.
EXCELLENT REPRESENTATION OF A LONG EXTINCT ANCIENT ARTHROPOD!!!
U.S.P.S. PRIORITY MAIL INSURED/SIGNATURE CONFIRMATION shipping within the continental U.S.A. only!!!
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