Praewaagenoconcha speciosa (Hall, 1867)

Figs. 3I, J, 4F, G.

Productella speciosa; Hall 1867: 175–176, pl. 25: 2–11.

“ Productella” speciosa; Linsley 1994: 103, 225, pl. 119: 1–10.

Praewaagenoconcha speciosa; Leighton 2000: 186, fig. 2A.

Material.—Figured specimens NYSM 15695, NYSM 15696, NYSM 15697, NYSM 15706, unfigured specimen NYSM 15698, and an estimated 60–80 unnumbered specimens on parts and counterparts of split slabs.

Remarks.—This is a common element of the lower Famennian Hanover brachiopod bed fauna represented by juvenile and adults shells (up to 25 mm in width). The upper Frasnian occurrences of Praewaagenoconcha speciosa (Hall, 1867) and the closely related form P. lachrymosa (Hall, 1867) in New York (see comments in Leighton 2000) are the oldest documented representatives of the genus in North America. Most other occurrences of the genus, primarily from the Great Basin (Johnson et al. 1969; Bratton and Day 1997; Bratton 1997; Morrow 2000) of western North America are all early Famennian in age (see discussion above).