Periodo Carbonífero
Echinoconchus alternatus (Norwood & Pratten 1855)

Mississippian-Chesterian, Bangor Limestone Formation, Alabama, USA

strophomenida S.P

Estados Unidos

Cleiothyridina obmaxima (McChesney, 1861) - 02

Warsaw formation del Missouri. Estados Unidos..

Cleiothyridina obmaxima (McChesney, 1861) - 03

Warsaw formation del Missouri. Estados Unidos..

Cleiothyridina obmaxima (McChesney, 1861) -01

Warsaw formation del Missouri. Estados Unidos..

Alitaria sp L. 9 mm.

Cawder Limestone, Brigantian. Visean, Lower Carboniferous. Youlgrave. Derbyshire, England

Alitaria sp. L. 9 mm.

Cawder Limestone, Brigantian. Visean, Lower Carboniferous. Youlgrave. Derbyshire, England

Antiquatonia hindi (Muir-Wood, 1928)

Asbian Reef Limestone, Visean. Treak Cliff, Castleton. Derbyshire, England. Dinantian Subsystem (Carboniferous Period)

Echinoconchus punctatus (Martin 1809) L. 09 mm.

Upper Asbian Limestone, Visean, Lower Carboniferous. Treak Cliff, Castleton, Derbyshire. England

Echinoconchus punctatus (Martin,1809) L. 12 mm.

Upper Asbian Limestone, Visean, Lower Carboniferous. Treak Cliff, Castleton, Derbyshire. England

Hartiella oakleyi (Brunton) L. 06 mm.

Upper Asbian Limestones, Visean, Lower Carboniferous. Treak Cliff, Castleton, Derbyshire. UK.

Harttella oakleyi (Brunton) L. 06 mm. .

Upper Asbian Limestones, Visean, Lower Carboniferous. Treak Cliff, Castleton, Derbyshire. UK.

Crurithyris nastus (Brunton & Champion 1974) L. 01 y 02 mm.

Chadian/ Arundian Limestone. Visean. Lover Carboniferous. Welten, Staffordshire.England

Rugosochonetes hardrensis (Phillips, 1841) L. 10 mm. Matriz 28 mm

Black Rock Limestone, 1m. Above Lower, LimestonenShales, Upper Courceyan, Tournaisian. West side of Hanson´s Quarry, Chipping Sodbury , Gloucestershire.

Pustula cf. pilosus (Thomas)

Courceyan Cementstones, SK 102542, Weags Bridge, Manifold Valley. Staffordshire. Carbonifero

Periodos