MS Book and Mineral Company Echinodermata - part 1 Echinodermata - part 3 Fossil Specimen Index Paleontology Index Place an Order Catalogs on this Website
MS Book and Mineral Company Echinodermata - part 2
Class Ophiuroidea
	Echin 33 Phylum Echinodermata Subphylum Eleutherozoa Superclass Cryptosyringida Class Ophiuroidea Order Ophiurida Genus Ophiopinna Species elegans Brittle Star: Ophiopinna elegans La Voulte, Ardeche, France middle Jurassic (Callovian) Pyrite replaced brittle stars (2 to 4 cm sizes) with the usual five slender, whip-like arms on natural shallow sea floor matrix (13.5 x 12.5 cm) from the famous middle Jurassic La Voulte-sur-Rhône collecting site in France sold
	Echin 13 Brittle Star: Ophiopinna elegans Same phylogeny and location as above except the pyrite replaced brittle stars are slightly smaller (1 to 2.5 cm sizes) with the usual five slender, whip-like arms on a oblong piece of natural shallow sea floor matrix (14.5 x 7 cm) $ 550
	Echin 3 Phylum Echinodermata Class Ophiuroidea Order Oegophiurida Genus Bundenbachia Species beneckei Brittle Star: Bundenbachia benecki Roofing slate (8 x 7.5 cm), Bundenbach, Germany, early Devonian A 2.5 x 2.5 cm pyrite replaced brittle star on black slate from Bundenbach, Germany; due to the wide rays, it almost appears to be a starfish, but is still a brittle star $ 575
	Echin 2 Phylum Echinodermata Class Echinoidea Order Phymosomatoida Genus Phymosoma Species texanum Sea Urchin: Phymosoma texanum Comanche Peak Fm, Clifton, Texas lower Cretaceous 2.5 x 2.5 cm A “regular” sea urchin measuring 2.5 x 2.5 cm; has a pentaradial shape with the peristome on the lower, central surface and the periproct in the middle of the apical disc on the upper, central surface; small tubercles on sides of urchin are where articular spines were attached; beige color of specimen is darker than seen here $ 50
	Echin 4a Phylum Echinodermata Class Echinoidea Order Spatangoida Genus Lovenia Sea Urchin:  Lovenia forbesi Mannum, South Australia Oligocene to lower Miocene An “irregular” heart shaped sea urchin measuring 3 x 3 cm; periproct is located on the posterior flat edge of the test; follow the anterior ambulacral groove forward and under the test to the peristome (which is located closer to the center of the carapace than usual); the spine tubercles are quite unusual as they are recessed into the test surrounded by a circular “moat” $ 20
	Echin 4b Sea Urchin:  Lovenia forbesi This sea urchin has the same phylogeny and is from the same location as above, slightly smaller (2.5 x 2 cm) and with some natural iron staining $ 10
	Echin 5 Phylum Echinodermata Class Echinoidea Order Spatangoida Family Hemiasteridae Genus Hemiaster Species whitei Sea Urchin:  Hemiaster whitei Ft. Worth Limestone Fm, Washita Grp., Kingston, Oklahoma, early Cretaceous A “regular” sea urchin measuring 2.5 x 2 cm; has a pentaradial shape with the peristome on the lower, central surface and the periproct in the middle of the apical disc on the upper, central surface; the test looks almost smooth, but on closer inspection very small tubercles are present; this specimen is in near mint condition   $ 100
	Echin 6a Phylum Echinodermata Class Echinoidea Subclass Euechinoidea Order Spatangoida Genus Pliotoxaster Species whitei Sea Urchin:  Pliotoxaster whitei Duck Creek Fm, Grayson County,  Texas, Early Cretaceous This is a “regular” sea urchin measuring 4 x 3.5 cm; a tiny chunk is missing from the side of this sea urchin, otherwise fine; it has a pentaradial shape with the peristome on the lower, central surface and the periproct in the middle of the apical disc on the upper, central surface; tubercles are slightly more prominent than in Hemiaster whitei $ 30
	Echin 6b Sea Urchin:  Pliotoxaster whitei This sea urchin has the same phylogeny and is from the same location as above, slightly smaller (2.5 x 2.5  cm) but it is better condition $ 25
	Echin 18 Phylum Echinodermata Class Echinoidea Subclass Euechinoidea Order Spatangoida Genus Eupatagus Species antillarum Sea Urchin: Eupatagus antillarium Ocala Limestone, Yankeetown, Florida Eocene Specimen size: 5.5 x 4.5 cm; the test of the sea urchin is well preserved; displaying the typical pentamerism; the test is composed of calcite and calcium carbonate, and is mainly cream colored; areas of slightly darker color noted; this species named for the limestone formation where found; the peristome can be distinguished on the oral (ventral) surface; raised tubercles are distinct where the spines originally attached; the ambulacral grooves are marked by rows of slits with definite individual foramina on each side of every slit through which the tube feet projected; plastron is very prominent $ 30
	Echin 19a Phylum Echinodermata Class Echinoidea Order Spatangoida Family Eupatagidae Genera Eupatagus Sea Urchin:  Eupatagus ocalanus Ocala limestone, Ocala, Florida, Eocene 4.3 x 3.5 cm The test of these sea urchins is well preserved displaying the typical pentamerism; this species named for the limestone formation where found; raised tubercles are distinct where the spines originally attached; the ambulacral grooves are marked by rows of slits through which the tube feet projected $ 25
	Echin 19b Sea Urchin:  Eupatagus ocalanus This sea urchin has the same phylogeny and is from the same location as above, this one is larger (5.9  x 5  cm) and it is in slightly better condition $ 28
	Echin 21 Phylum Echinodermata Class Echinoidea Order Spatangoida Family Hemiasteridae Genus Hemiaster Species calvini Sea Urchin:  Hemiaster calvini Grayson Fm - Washita Grp., Bryan County, Oklahoma, late Cretaceous A “regular” sea urchin measuring 3 x 2.5 cm; has a pentaradial shape with the peristome on the lower, anterior surface;  the surface of the test looks smooth, but uneven; no tubercles are present $ 24
	Echin 22 Phylum Echinodermata Class Echinoidea Subclass Euechinoidea Order Cassiduloida  Genus Echinolampas Species appendiculatus Sea Urchin:  Echinolampas appendiculatus Castle Hayne Fm, Maple Hill, North Carolina, Eocene A “regular” sea urchin measuring 3.5 x 3 cm; has a pentaradial shape with the peristome on the lower, central surface and the periproct in the middle of the apical disc on the upper, central surface; the ambulacral grooves are distinct, but have little depth unlike many which have deep grooves; the surface of the test of this specimen is different as it “pin-pricked;” upon magnification the spots are actually tiny tubercles surrounded by a tiny perfect moat $ 24
MS Book and Mineral Company Echinodermata - part 1 Echinodermata - part 3 Fossil Specimen Index Paleontology Index Place an Order Catalogs on this Website