Contributions to Pennsylvanian paleobotany Mazocarpon oedipternum, sp. nov. and Sigillarian relationships,

Paleobotanical and paleoecological constraints on models of peat formation in the Late Carboniferous of Euramerica

“…Sigillaria was a survivor of wetland extinctions near the Westphalian-Stephanian boundary; the best known organ assemblages occur in the Stephanian Calhoun coal of Illinois (Schopf, 1941;Delevoryas, 1957;Eggert, 1972). Sigillarian trees exhibited a pole habit, with "branching" confined to whorls of cones sporadically produced below the apex (Figs.…”

“…Mazocarpon oedipternum, the cone of Sigillaria approximata { = S. ichthyolepis), produced Laevigatosporites glabratus megaspores. Schopf (1941) suggested that these cones were shed intact and broke up mechanically in the surficial litter. Further distribution may have been effected by water flow, nearby streams, or floods (Phillips and DiMichele, 1992).…”

Two new species of megasporangiate <i>Sigillariostrobus</i> Schimper (Sigillariostrobaceae) fructifications from the British Coal Measures

“…The anatomically preserved monosporangiate Mazocarpon Benson, 1918 includes two species that contain spores referable to Laevigatisporites glabratus. They are M. oedipterum Schopf, from the McLeansboro Group, in Illinois (Schopf, 1941, late Pennsylvanian (Stephanian A)), and M. bensonii Pigg, from the Duquesne Coal, Conemaugh Group, Ohio (late Pennsylvanian (Stephanian B)). Pigg (1983) showed the two species to have sufficiently different anatomical features to be separated.…”

Index of generic names of fossil plants, 1820-1965

“…V errucania guilelmitica Fucini, 1936pl. 41 See also Walton and Wilson, 1932;Schopf, 1964Schopf, , 1965.…”