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Areoligera guembelii
Areoligera guembelii, Kirsch, 1991
Holotype: Kirsch, 1991, pl.15, figs.1-3
Locus typicus: Gerhartsreiter Graben, Bavaria, Germany
Stratum typicum: Middle Maastrichtian
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Original description: [Kirsch, 1991, p. 89]: (Translation: LPP)
Diagnosis:
Chorate species of the genus Areoligera with a subsphaeroidal, perforate, central body, dorsal side with subsquare process groups. Antapical two unequal lobes. The slender, distally bifide or capitate, sometimes distally connected processes are connected at the bases by low membranes. Archaeopyle apical ([tA]).
Description:
Marginate cyst a dorsoventrally flattened, subsphaeroidal central body, dorsal side convex, ventral side straight. Surface perforate. Antapical with two unequal developed lobes. Dorsal and antapical with subsquare (simulate) process complexes and linear, penitabular process complexes. Processes slender, proximally connected, distally slightly tapered. Free ends may be thickened or bifid; near the antapical lobes processes proximally thickened and extended. Periphragm and process groups finely perforate. Processes precingular, postcingular and antapical. Linear process complexes cingular. No processes on ventral side.
Tabulation: 4", 6"", 5""", 1p, 1"""" (sic).
Archaeopyle apical ([tA]) with secate, foederate operculum.
Affinities:
A. guembelii differs from A. senoniensis in the cyst habits and the perforate surface. The central body of A. vermiculata is smaller with a granulate to weakly vermiculate surface. Processes of A. crescentis are arcurate, annulate or rectilinear developed.
Holotype: Kirsch, 1991, pl.15, figs.1-3
Locus typicus: Gerhartsreiter Graben, Bavaria, Germany
Stratum typicum: Middle Maastrichtian
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Original description: [Kirsch, 1991, p. 89]: (Translation: LPP)
Diagnosis:
Chorate species of the genus Areoligera with a subsphaeroidal, perforate, central body, dorsal side with subsquare process groups. Antapical two unequal lobes. The slender, distally bifide or capitate, sometimes distally connected processes are connected at the bases by low membranes. Archaeopyle apical ([tA]).
Description:
Marginate cyst a dorsoventrally flattened, subsphaeroidal central body, dorsal side convex, ventral side straight. Surface perforate. Antapical with two unequal developed lobes. Dorsal and antapical with subsquare (simulate) process complexes and linear, penitabular process complexes. Processes slender, proximally connected, distally slightly tapered. Free ends may be thickened or bifid; near the antapical lobes processes proximally thickened and extended. Periphragm and process groups finely perforate. Processes precingular, postcingular and antapical. Linear process complexes cingular. No processes on ventral side.
Tabulation: 4", 6"", 5""", 1p, 1"""" (sic).
Archaeopyle apical ([tA]) with secate, foederate operculum.
Affinities:
A. guembelii differs from A. senoniensis in the cyst habits and the perforate surface. The central body of A. vermiculata is smaller with a granulate to weakly vermiculate surface. Processes of A. crescentis are arcurate, annulate or rectilinear developed.