Crinoids
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Ordovician - Bromide Formation
Mississippian
Glyptocystella loeblichi
Bromide Formation, Oklahoma
Excellent inflated cystoid.
15mm (5/8 inch)
£30/$50
Hybocrinus nitidus
Bromide Formation, Oklahoma
Excellent inflated crinoid calyx.
15mm (5/8 inch)
£12/$20
Cremacrinus ramifer
Bromide Formation, Oklahoma
Excellent complete calyx of this
calceocrinid. 15mm (5/8 inch) £12/$20
Palaeocrinus hudsoni
Bromide Formation, Oklahoma
Excellent inflated crinoid calyx.
15mm (5/8 inch)
£12/$20
Pachylocrinus aequalis #3
Edwardsville Formation
Complete crown and stem.
Measures ~60mm (2.25
inches) - £60/$100
Agaricocrinus planoconvexus
Burlington Limestone
Excellent complete calyx. Measures
~20mm (3/4 inch) - £20/$35
Dichocrinus multiplex
Gilmore City Formation Excellent
crowns. 20mm+ (3/4 inch)
£15/$25 Each
Hypselocrinus douglassi
Gilmore City Formation
Excellent crown.
~25mm (1 inch) - £25/$40
Agariocrinus splendens
Muldraugh Formation
Excellent crown.
~50mm (2 inches) - £50/$80
Pachylocrinus aequalis #1
Edwardsville Formation
Excellent complete crown.
Measures ~45mm (1.75 inches)
£50/$80
Phanocrinus formosus
Golconda Formation
Excellent crown.
~45mm (1.75 inches)
£35/$55
Phanocrinus formosus
Golconda Formation
Excellent crown repaired
~30mm (1 inch) £15/$25
(two available)
Phanocrinus formosus
Fraileys Limestone
Two complete crowns on
matrix. Slab measures ~55mm
(2.25 inches) £60/$100
Holocystites gyrinus £35/$60
Osgood Shale, Silurian
Very nice inflated calyx.
~45mm (1.75 inches)
Anatifopsis papilata
Rare mitrate carpoid
Bromide Formation, Oklahoma
~10 mm £12/$20
Silurian
Pisocrinus sp.
£5/$8
Henryhouse Formation
Upper Silurian, Oklahoma

Very good, complete calyx from this
small yet distinct crinoid.
Each specimen measures ~ 8 to 12mm
Devonian
Heteroschisma gracilis
£15/$25
Thunderbay Limestone
Michigan
Rare Blastoid ~10 mm
Gilbertsocrinus ohioensis - £15/$25
Excellent complete calyx - Silica Shale, Ohio ~15 mm
Abrotocrinus unicus
Edwardsville Formation
Complete crown and stem.
Measures ~25 mm £15/$25
Oklahomacystis tribrachiatus
Rare, complete paracrinoid
Bromide Formation, Oklahoma
~15 to 20 mm - £20/$35
Eretmocrinus tentor
Gilmore City Formation Complete
crown ~25mm
Similar £20/$35
Blairocrinus trijugis
Choutea Limestone
Complete calyx
~20mm (7/8 inch)   £20/$35