 |
|
|
 |
|
Ophiopinna elegans
Phylum Echinodermata,
Subphylum Asterozoa, Class Ophiuroidea,
Order Ophiurida, Family Ophiuridae, Subfamily Ophioleucinae
Geological Time: Jurassic
Fossil Site: Callovian Formation, Valence, France
Size: 49 mm x 70 mm matrix
Item: EFS021
Price: Sold
Price: An attractive brittle star mortality plate from a very old collection. |
|
|
|
|
|
Gogia spiralis Eocrinoid
Taxonomy Phylum Echinodermata, Subphylum Blastozoa,
Class Eocrinoidea (also called Dawn Crinoid,
or Eocrinoid)
Geological Time: Middle Cambrian
Fossil Site: Wheeler Shale, Millard County, Utah
Size: 38mm Gogia on 65mm x 65mm matrix
Item: SFS008C
Price: $85.00
Remark: Gogia spiralis is a Cambrian cystoid that is among the earliest and most
primitive groups of echinoderms. Gogia differed from true crinoids in that they
had pores along the margins separating the plates, and the type of feeding arms
they displayed. The species Gogia spiralis derives its name from its tightly
spiraled arms and is only one of three Gogia species to have spiraled arms. Gogia
was a sessile (stationary) suspension feeder gathering food with its arms in
calm waters of shallow Cambrian seas. Gogia were widely distributed in the lower
and middle Cambrian of western North America. Gogia lived only during the Cambrian
time period, but the cystoids that evolved from them survived until the end of
the Devonian. |
|
|
|
 |
|
Gogia spiralis Echinoderm, Trilobite
Asaphiscus wheeleri
Geological Time: Middle Cambrian
Fossil Site: Wheeler Shale, Millard County, Utah
Size: Gogia 30 mm, Asaphiscus trilobite 11 mm on 90 mm x 95 mm matrix
Item: EFS023
Price: $95.00
Remark: Gogia is a Cambrian cystoid that is among the earliest and most primitive
groups of the Echinodermata. Because of this, they are often
called
a "dawn
crinoids". The association with a trilobite is quite uncommen. |
|
|
|
|
|
Actinocrinites gibsoni
Taxonomy: Phylum Echinodermata, Class
Crinoidea, Ssubclass Camerata, Order Monobathrida
Geological Time: Mississippian
Fossil Site: Indian Creek Formation, Waveland, Indiana
Size: 51 mm
Item: EFS024
Price: Sold
Remarks: A beautiful specimen of a species and locality you will only find from
very old collections. |
|
|
|
|
|
Scutellaster major - SOLD
Phylum Echinodermata, Class Echinoidea, Order Clypeasteroida
Geological Time: Pliocene
Fossil Site: Scotia Bluffs, Scotia, Humbolt County, California
Size: 52 mm
Item: EFS025
Price: $35.00
Remarks: A beautifull polished echinoid. |
 |
|
|
