 |
 |
 |
The site also produced a few rare associations of pyritized Mitrate Carpoids. Carpoids are a bit mysterious, and until now pyritized examples had not been known from New York State. A pyritized Carpoid associated with a Gravicalymene magnotuberculata is one in a million!
They are from the Denley Formation, Trenton Group, Middle Ordovician, New York State.
|
|
|
|
(Click Photo to Enlarge)
Name: Gravicalymene magnotuberculataGeologic Age: Ordovician (445 Million Years Old)
Stratigraphic detail: Dolgeville Formation
Location: Dolgeville, New York
Comments: Cluster of 7 VENTRAL Gravicalymene magnotuberculata. Largest specimen measures 1.5 cm.Gravicalymene magnotuberculata Trilobite 2 - Price $550.00
 |
 |
 |
 |
(Click Photo to Enlarge)
Name: Gravicalymene (Undescribed species)Geologic Age: Ordovician (445 Million Years Old)
Stratigraphic detail: Lorraine Shale
Location: Montreal, Quebec Canada
Comments: This species is undescribed and is found nowhere else! Rare!!Undescribed Gravicalymene Trilobite 1 - Price $400.00
 |
 |
 |
 |
(Click Photo to Enlarge)
Name: Gravicalymene magnotuberculataGeologic Age: Middle Ordovician (445 Million Years Old)
Stratigraphic detail: Denley Formation, Trenton Group
Location: New YorkComments: This is an amazing piece! A double Gravicalymene magnotuberculata with another partial specimen below and amazingly a very rare slightly disarticulated pyritized Mitrate Carpoid! The Gravicalymene magnotuberculata specimens are exceptional on this piece displaying very long genal spines for a member of the Calymene family, which may be a singularity to this species. Both specimens are in excellent condition and black and glossy in normal light. The extended Gravicalymene measures 7mm and the partially rolled is 5mm. Both trilobites are likely rare meraspids! Pyritized Mitrate Carpoids have been found associated rarely at this locality before. All other specimens have been donated to the scientific community to date, so this is a very rare opportunity indeed. The Carpoid measures about 1cm and the tail has become separated. The head is compressed but the tail is remarkably detailed and shows many barbs or spikes. These carpoids are preserved in framboidal pyrite and may have soft tissue preservation. Pyritized Carpoids are not known from New York State until now. Being that the locality is now closed this is the only opportunity to get a specimen, especially one associated with one of rarest North American trilobites!
Gravicalymene Trilobite 6 - Price $475.00
 |
 |
 |
(Click Photo to Enlarge)
Name: Gravicalymene magnotuberculataGeologic Age: Middle Ordovician (445 Million Years Old)
Stratigraphic detail: Denley Formation, Trenton Group
Location: New YorkComments: This 4.5cm lateral (laying on it’s side) specimen is one of the largest ever found of this rare species. The carapace is black and very glossy with exceptional detail. The surface of the trilobite is covered with postules. All of the pleura on the exposed side are perfect. This represents one of last few specimens available to collectors as the only productive small exposure producing these is now worked out and closed. This species was only known from two localities in New York State.
Gravicalymene Trilobite 7 - Price $395.00