Dall, 1900

Biconvex to strangulate to oppositely multiplicate, smooth or more commonly multiplicate, punctae rather coarse; beak fairly short, subtruncate; foramen large, submesothyridid but almost hypothyridid; deltidial plates small; pedicle collar well developed, supported by median septum. Cardinal process forming transversely elongate, subrectangular boss that projects slightly behind posterior margin, buttressed by median septum; crura widely separate, short; loop relatively long, formed of 2 descending branches, anteriorly converging to join end of median septum; lophophore large, schizolophous.

Source: Moore, 1965.

The following species that belong to this genus occurs in this region:

Argyrotheca cistellula

Kingdom Animalia
Phylum Brachiopoda
Class Articulata
Order Terebratulida
Suborder Terebratellidina
Superfamily Terebratellacea
Family Megathirididae
Genus Argyrotheca

Scientific synonyms and common names

Cistella Gray, 1853

Moore, R.C. (ed.), 1965. Treatise on Invertebrate Paleontology. Part H, Brachiopoda, 2 vols. The Geological Society of America, Inc. & The University Of Kansas Press, 927 pp.

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