PBDB Taxon

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Schizophoria (Eoschizophoria) oriskania

Rhynchonellata - Orthida - Schizophoriidae

Taxonomy

Schizophoria oriskania was named by Schuchert (1913) [Type designated by Stigall Rode (2005:148)]. Its type specimen is YPM S1413B, a shell, and it is a mold.

It was recombined as Schizophoria (Eoschizophoria) oriskania by Stigall Rode (2005).

Sister species lacking formal opinion data

S. allani, S. athabaskensis, S. athabaskiensis, S. bisinuata, S. compacta, S. connivens, S. fascicostella, S. fecunda, S. fossula, S. fragilis, S. latisulcata, S. lianghetangensis, S. mayesensis, S. mcfarlanei, S. multistriata, S. nevadensis, S. protonevadensis, S. runegatensis, S. shubarica, S. similis, S. striatula, S. texana, S. athabaskensis

Synonymy list

Year	Name and author
1913	Schizophoria oriskania Schuchert p. 307 figs. pl. 56 f. 9-12
2005	Schizophoria (Eoschizophoria) oriskania Stigall Rode pp. 148 - 149 figs. 4.1a-b

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
—	Lophophorata
—	Panbrachiopoda	Carlson and Cohen 2020
phylum	Brachiopoda	Cuvier 1805

Rank	Name	Author
subphylum	Rhynchonelliformea	Williams et al. 1996
class	Rhynchonellata	Williams et al. 1996
order	Orthida	Schuchert and Cooper 1932
suborder	Dalmanellidina	Moore 1952
superfamily	Enteletoidea	Waagen 1884
family	Schizophoriidae	Schuchert and Le Vene 1929
genus	Schizophoria
subgenus	Eoschizophoria
species	oriskania	()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Schizophoria (Eoschizophoria) oriskania Schuchert 1913

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Diagnosis

Reference	Diagnosis
A. L. Stigall Rode 2005	Medium-sized, biconvex S. (Eoschizophoria); hinge line short; cardinal extremities rounded; poorly developed fold and sulcus, onset distal; shell depth short; moderate to lowinflation of brachial and ventral valves; narrow dorsal and ventral umbonal angles; ventral cardinal area high, delthyrium narrow; ventral umbo extends further posteriorly than dorsal umbo, dorsal valve flanks dip steeply away from umbonal region; ventral muscle field bilobate, diductor tracks parallel; dental plates form low-relief ridge on lateral edges of ventral muscle field; ventral muscle field long and narrow; median septum continues beyond ventral muscle field; dorsal muscle field long and narrow.