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Muderongia sp. a of davey 1979c
Muderongia sp. A of Davey, 1979c
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Muderongia sp. A of Davey, 1979. This taxon was differentiated from Muderongia simplex by Davey (1979) in having an angular endocyst which often extends into the base of the antapical horns. Alberti's type material of M.simplex suggests that the endocyst is markedly subangular to subspherical. Barron (1988) said that in Sarjeant's translation from Alberti " the inner body lies close to the outer margin of the cyst, often it stretches out somewhat into the horns". Helby (1987, p. 330) stated that Muderongia sp. A closely resembles Senoniasphaera and that it differs only in minor details of the lateral and apical horns from M.simplex. According to Riding and Thomas (1988) Muderongia sp. A consistently has shorter apical, lateral and antapical horns. These authors also noted that the endocyst in Muderongia sp. A consistently extends into the horns. Poulsen (1996) synonymises the two taxa.
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Muderongia sp. A of Davey, 1979. This taxon was differentiated from Muderongia simplex by Davey (1979) in having an angular endocyst which often extends into the base of the antapical horns. Alberti's type material of M.simplex suggests that the endocyst is markedly subangular to subspherical. Barron (1988) said that in Sarjeant's translation from Alberti " the inner body lies close to the outer margin of the cyst, often it stretches out somewhat into the horns". Helby (1987, p. 330) stated that Muderongia sp. A closely resembles Senoniasphaera and that it differs only in minor details of the lateral and apical horns from M.simplex. According to Riding and Thomas (1988) Muderongia sp. A consistently has shorter apical, lateral and antapical horns. These authors also noted that the endocyst in Muderongia sp. A consistently extends into the horns. Poulsen (1996) synonymises the two taxa.
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