Terataspis grandis


In Stock

SKU: tri/grandis-bsr/rg475

A Extraordinary Species
Terataspis  grandis
Age: Middle Devonian ( 390 million years )
Location: Erie County, New York
Formation: Williamsville Quarry, Onadaga Limestone
Size: 28″ long trilobite
Cost: $ 475

History of this Trilobite Specimen:
This species of trilobite as you can see has been known by Paleontologists and collectors alike for many years.
There has never been a complete specimen ever found. However many segments of this trilobite
have been found at the quarry and based on those fossils a reconstruction as you see here has been done by
Mr. George Rennie of Ct. under the guidance and research
by Dr. Copeland McClintock of Yale University Division of Invertebrate Paleontology.
At This time this model is on display at the Peabody Museum at Yale.
To date this trilobite is considered to be the Largest known to have lived on the North American Continent….

Terataspis grandis (Hall. 1861) —-Holotype NYSM 4543


Type species. Terataspis grandis is found in both the lower Onondaga
Limestone of western New York, particularly the former Fogelsanger Quarry in Williamsville, Erie County, and the upper Schoharie Formation of eastern New York. The large size and spiny nature of this trilobite make it one of the more spectacular ones.  Only one specimen is known from
New York  it is complete enough for a reasonable reconstruction. This specimen is upside down, and half, longitudinally, is missing. It is in the Buffalo Museum of Natural History, Buffalo, New York.  The drawing  shows where the genal spine appears on the exoskeleton. “Only one reasonably complete specimen is known from New York.” Certainly a good number of pieces are known.

Sold only through Bay State Replicas & Two Guys Fossils

: The 4th small picture is an Illustration was published in 1958 in the Fossil Book by Carroll & Mildred Fenton.

FYI:  The 5 th small picture is the left genal spine from the original fossil .

FYI:  The 6 th small picture is an Artist idea of the type of marine scene that this trilobite lived & looked like.