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Mendicodinium microscabratum
Mendicodinium microscabratum Bucefalo Palliani et al. 1997a
Holotype: Bucefalo Palliani et al. 1997a: Plate II, 10
Type locality: Fonte Cerro section, Marne di Monte Serrone Formation, central Italy.
Stratigraphic horizon: Lower Toarcian, D. tenuicostatum Zone.
Original Diagnosis: Bucefalo Palliani et al. 1997a, p. 109
Ellipsoidal, proximate, small dinoflagellate cysts, with autophragm smooth to microscabrate.
Original Description: Bucefalo Palliani et al. 1997a, p. 109
Ellipsoidal, proximate, small dinoflagellate cysts which are markedly elongate equatorially. Autophragm smooth to microscabrate. The elements of ornamentation are densely arranged, nontabular and are about 0.2Ám in
diameter (Plate III, 8). The cyst is characterized by very dense internal sculpture (Plate III, 10, 11). The hypocyst may be significantly larger than the epicyst.
Dimensions: Holotype: Length 20Ám, width 34Ám.
Overall cyst length: minimum 15Ám; mean 23.8Ám; maximum 33Ám. Overall cyst width: minimum 22Ám; mean 30Ám; maximum 38Ám (25 specimens measured).
Discussion: Bucefalo Palliani et al. 1997a, p. 109
Mendicodinium microscabratum is most similar in morphology to M. granulatum Kumar, 1986 and M. umbriense. However, Mendicodinium granulatum is significantly larger in overall size than M. microscabratum and the elements of the ornamentation are also much larger than their counterparts in M. microscabratum. Furthermore, Mendicodinium microscabratum does not exhibit the large granules characteristic of M. umbriense. Mendicodinium sp. 1 in Baldanza et al. (1995) is considered to be M. microscabratum.
Holotype: Bucefalo Palliani et al. 1997a: Plate II, 10
Type locality: Fonte Cerro section, Marne di Monte Serrone Formation, central Italy.
Stratigraphic horizon: Lower Toarcian, D. tenuicostatum Zone.
Original Diagnosis: Bucefalo Palliani et al. 1997a, p. 109
Ellipsoidal, proximate, small dinoflagellate cysts, with autophragm smooth to microscabrate.
Original Description: Bucefalo Palliani et al. 1997a, p. 109
Ellipsoidal, proximate, small dinoflagellate cysts which are markedly elongate equatorially. Autophragm smooth to microscabrate. The elements of ornamentation are densely arranged, nontabular and are about 0.2Ám in
diameter (Plate III, 8). The cyst is characterized by very dense internal sculpture (Plate III, 10, 11). The hypocyst may be significantly larger than the epicyst.
Dimensions: Holotype: Length 20Ám, width 34Ám.
Overall cyst length: minimum 15Ám; mean 23.8Ám; maximum 33Ám. Overall cyst width: minimum 22Ám; mean 30Ám; maximum 38Ám (25 specimens measured).
Discussion: Bucefalo Palliani et al. 1997a, p. 109
Mendicodinium microscabratum is most similar in morphology to M. granulatum Kumar, 1986 and M. umbriense. However, Mendicodinium granulatum is significantly larger in overall size than M. microscabratum and the elements of the ornamentation are also much larger than their counterparts in M. microscabratum. Furthermore, Mendicodinium microscabratum does not exhibit the large granules characteristic of M. umbriense. Mendicodinium sp. 1 in Baldanza et al. (1995) is considered to be M. microscabratum.