29 



Genus Pungtatisporites (Ibrahim) 



Schopf, Wilson, & Bentall, 1944 



Plate 3, figures 23-26; plate 4, figures 1-21; 



plate 5, figures 1-12; text figures 7-9 



Type species. — Punctatis pontes punctatus 

 (Ibrahim) Ibrahim, 1933. 



Affinities. — Pteridospermic and filicinean 

 (Schopf, Wilson, and Bentall, 1944, p. 29). 

 According to Potonie and Kremp (1955, p. 

 42), the affinities of Punctatis pontes are with 

 Psilopsida, Filicineae, and possibly Cycado- 

 filicineae. Spores of the Punctatis pontes type, 

 according to the Schopf, Wilson, and Bentall 

 classification, were reported by Remy and 

 Remy (1955, p. 42-43, 45-47, pis. 14, 16, 17) 

 from compressions of Acitheca (Pecopteris) 

 longifolia Corsin, Senftenbergia (Pecopteris) 

 pennaeformis Brongniart, Corynepteris silesi- 

 aca Remy & Remy, 1955, and Schizopteris 

 pinnata Grand'Eury. Illustrations of spores of 

 Botyropteris fecunda Mamay (1950, fig. 4) 

 show some similarity to Punctatis pontes sul- 

 catus Wilson & Kosanke, 1944. Mamay also 

 pointed out that spores obtained from Biscali- 

 theca nusata Mamay (1957, p. 232-237), a 

 Pennsylvanian coenopterid, resembled P. ver- 

 miculatus Kosanke, 1950. 



Punctatis pontes sulcatus Wilson & 

 Kosanke, 1944 



Hoffmeister, Staplin, and Malloy (1955b, 

 pi. 4, fig. 18) assigned Punctatis pontes sul- 

 catus to Cristatis pontes. The species was as- 

 signed to Punctatis pontes by Wilson and 

 Hoffmeister (1956, p. 20) and to Converruco- 

 sisporites by Guennel (1958, p. 61). 



Punctatis pontes cf. obesus (Loose) 

 Potonie & Kremp, 1955 



Specimens observed in this study are simi- 

 lar to the one illustrated by Potonie and 

 Kremp (1955, pi. 11, fig. 124). 



Punctatis pontes brevivermiculatus sp. nov. 

 Plate 3, figures 23-24; text figure 7 



Diagnosis. — The spores are radial, trilete, 

 circular to subcircular in outline, and have 

 an uneven equatorial margin due to orna- 

 mentation. They are in good proximal-distal 

 orientation. The rays are straight, between 

 two-thirds and three-fourths the length of the 

 spore radius (15 to 23 /a) , and distinct when 



seen from the proximal surface. The spore 

 coat, which is 3.5 to 6 /i thick, appears punc- 

 tate when viewed under high dry objective, 

 but under oil immersion objective the orna- 

 mentation is distinctly vermiculate (text fig. 

 7 ) . The vermiculations are terminated at 

 their ends by deep puncta, about 2 /a in di- 

 ameter and 1.5 /a deep, and cover about 30 

 percent of the spore surface. Dimensions (7 

 specimens) : size range, 55.1 to 71.3 ^ in 

 maximum diameter; median, 63.2 /a. 



Holotype. — Plate 3, figure 23; negative 

 6471; Henshaw Formation, maceration 1122- 

 A, slide 49 ZB, coordinates, 126.0 X 32.2; 

 size, 63.1 by 58.5 /*,. 



Paratype. — Plate 3, figure 24, negative 

 5571; Henshaw Formation, maceration 1122- 

 A, slide 18 ZB, coordinates, 145.4 X 51.9; 

 size, 56.1 by 54.4 /x. 



Derivation of name. — The species name 

 refers to the small (brevi) vermiculations. 



FIG. 7 — Diagrammatic detail of portion of exine 

 of Punctatis porites brevivermiculatus sp. nov. 



Punctatis pontes chapelensis sp. nov. 

 Plate 3, figures 25-26 



Diagnosis. — The spores are radial, trilete, 

 circular to subcircular in outline, and usually 

 folded or torn. The rays are usually very in- 

 distinct due to the coarseness of ornamenta- 

 tion but can be traced at least half the dis- 

 tance to the spore margin. The rays, which 

 lack lips, are often split open. The spore 

 coat, about 1.5 it thick, is covered with ver- 

 rucose projections that vary in shape from 

 rectangular (baculate) to oval in cross section 

 and have flat or rounded ends. Projections 

 may be either broader than high or higher 

 than broad. The verrucae are from less than 

 1 /a to 3 /a in height and diameter and are 

 1 to 3 /a apart. Between the verrucae are 

 puncta and minute grana that are only faint- 

 ly visible under high dry objective but dis- 

 tinct under oil immersion objective. From 

 30 to 40 verrucae can be counted around the 

 margin of the spore. Dimensions (21 speci- 

 mens) : size range, 32.4 to 42.1 [x in maxi- 



