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Anorthopygus texanus

Geological Range

AWAITING DETERMINATION

Paleogeographic Distribution

AWAITING DETERMINATION

Remarks

Original description from Cooke (1946, p. 219): "Test subcircular, tumid, margin rounded, deeply depressed at the peristome, slightly depressed below the periproct. Apical system central; five ocular plates, four genital plates, the madreporite large and extending backward between the posterior ocular plates, which are widely separated. Ambulacral areas about half as wide as the inter-ambulacral areas; plates very short and wide, one pair of pores to the plate; poriferous zones consisting of a single row of pore pairs, continuous to the peristome, pore pairs transverse except near the peristome, where they become diagonal; pores of a pair diverging inward, causing the pore pairs to appear wider where corroded. Peristome central, sunken, transversely oval, slightly notched, diameter about one-fourth that of the test. Periproct large, flush, subpyriform, oblique, extending above the margin. Tubercles large, perforated, in deep scrobiculi, closer together on the under surface; inter-mediate spaces granula."

Stratigraphic Occurrences

<i>Anorthopygus texanus</i> from the Cretaceous (formation unknown) of the Anacacho Mountains of Texas (KUMIP 370225).
Anorthopygus texanus from the Cretaceous (formation unknown) of the Anacacho Mountains of Texas (KUMIP 370225).
Holotype specimen (aboral surface) of <i>Anorthopygus texanus</i> from the Cretaceous Washita Group of Castle Mountain, Upton County, Texas (USNM 103881). Photograph by Suzanne McIntire; source: http://n2t.net/ark:/65665/3098e328f-a4d9-4947-aa1e-191c6dba5460.
Holotype specimen (aboral surface) of Anorthopygus texanus from the Cretaceous Washita Group of Castle Mountain, Upton County, Texas (USNM 103881). Photograph by Suzanne McIntire; source: http://n2t.net/ark:/65665/3098e328f-a4d9-4947-aa1e-191c6dba5460.
Holotype specimen (oral surface) of <i>Anorthopygus texanus</i> from the Cretaceous Washita Group of Castle Mountain, Upton County, Texas (USNM 103881). Photograph by Suzanne McIntire; source: http://n2t.net/ark:/65665/3098e328f-a4d9-4947-aa1e-191c6dba5460.
Holotype specimen (oral surface) of Anorthopygus texanus from the Cretaceous Washita Group of Castle Mountain, Upton County, Texas (USNM 103881). Photograph by Suzanne McIntire; source: http://n2t.net/ark:/65665/3098e328f-a4d9-4947-aa1e-191c6dba5460.

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