Welcome to Catnapin's
Pennsylvanian Fossil Gallery - Brachiopod
Brachiopoda, Articulata, Spiriferida
(Phylum, Class, Order)
Red text = needs information
Fossil identification by Jo Cox unless otherwise noted
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Athyrididae
(Family)
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Cleiothyridina orbicularis Period: Pennsylvanian Location: near Novice, Texas Collection: Jo Cox Size: 15 mm long |
2 specimens in first photo, detail photos are of the left specimen |
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Description: convexi-flat, fine even radial ribs --- growth rings --- pedicle valve has very shallow sulcus |
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Composita subtilita Period: Pennsylvanian Location: near Brownwood, Texas Collection: Jo Cox Size: 22 mm wide |
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Description: biconvex, longer than wide --- pedicle valve has wide sulcus, brachial valve has wide fold |
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Retziidae
(Family)
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Hustedia mormoni Period: Pennsylvanian Location: near Novice and Brownwood, Texas Collection: Jo Cox Size: 9 mm wide (largest) |
3 specimens |
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Description: biconvex, radial ribs |
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Spririferidae
(Family)
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Neospirifer latus Period: Pennsylvanian Location: near Brownwood, Texas Collection: Judie Ostlien Size: 64 mm hinge |
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Description: biconvex, fine radial ribs, pointed wings --- wide sulcus on the pedicle valve, brachial valve and anterior edge is crushed |
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Neospirifer rockymontanus Period: Pennsylvanian Location: near Brownwood, Texas Collection: Judie Ostlien Size: 34 mm hinge |
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Description: biconvex, fine radial ribs, pointed wings --- wide sulcus on the pedicle valve, fold on the brachial valve --- pyrite flakes grew in fossil's solution |
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Neospirifer rockymontanus Period: Pennsylvanian Location: ? Collection: Hardin-Simmons University Size: 67 mm hinge |
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Description: biconvex, fine radial ribs, pointed wings --- wide sulcus on the pedicle valve, fold on the brachial valve |
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Spririferinidae
(Family)
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# 1 Punctospirifer sp.(? kentuckyensis) Period: Pennsylvanian Location: near Moran, Texas Collection: Jo Cox Size: 6 mm hinge |
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Description: biconvex, radial ribs (bolder than Neospirifer), wider than long at sharp hinge, no wings --- sulcus on the pedicle valve, fold on the brachial valve |
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