1976] 
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costal margin, (2) the wing shape, and (3) the presence of a 3- 
branched MP, which to my knowledge does not occur in the 
Megasecoptera, except for some of the highly specialized and 
aberrant Megasecoptera recently described by Kukalova-Peck 
(1975). However, the difficulty of distinguishing between the 
wings of the Megasecoptera and Palaeodictyoptera prevents any 
certainty in this assignment (see Carpenter 1963 and 1967, and 
Kukalova-Peck, 1975). 
The species is named for the late Charles Piper of Hope, Kansas, 
who for more than forty years has owned the property in Elmo on 
which the Harvard quarry has been located, and who consistently 
encouraged us and assisted us in the collecting of the fossils. 
The genus Oboria Kukalova (1960) from the Lower Permian of 
Moravia, originally placed in the family Spilapteridae, apparently 
belongs to the Elmoboriidae. The species ( longa ) on which Oboria 
was based is known from a single wing, lacking the basal and distal 
portions (figure 10). In view of the structure of the complete wing 
of Elmoboria, I think it most probable that the wing of longa had 
a more extended base than that which Kukalova reconstructed. 
If that were so, the wing would have been shaped much as in 
piperi . The general venational patterns in both species, the weak 
and irregular cross veins, and especially the proximity of the 
Figure 1 1. Elmothone martynovae, n.sp.; drawing of fore wing, based on holo- 
type, no. 5585, M.C.Z. Length of wing, as preserved, 13 mm. 
