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Komewuia diceras
Komewuia diceras (Cookson and Eisenack, 1960b, p.256-257, pl.39, fig.1) Dörhöfer and Davies, 1980, p.30. Emendation: Fisher and Riley, 1980, p.323, as Kalyptea diceras.
Now Kalyptea. Originally (and now) Kalyptea, subsequently Komewuia, thirdly Pareodinia.
Questionable tax. jr. synonym of Pareodinia ceratophora Deflandre, 1947, according to Gocht, 1970. Lentin and Williams, 1981, retained this species as Kalyptea diceras.
Tax. sr. synonym of Kalyptea jurassica Alberti, 1961, according to Below, 1990.
Holotype: Cookson and Eisenack, 1960, pl.39, fig.1
Locus typicus: Canning Basin, W Australia
Stratum typicum: Tithonian
Original description: Cookson and Eisenack, 1960, p. 256: Kalyptea diceras
Shell ellipsoidal with apical and antapical horns of unequal length. The apical horn is relatively long, straight or curved, and consists of a short hollow basal region and a longer, and more slender solid apex. The antapical horn is considerably shorter but like the apical horn ends in a solid tip. The membrane of the shell is thin and finely granular; the external membrane in the type specimen is clearly attached to the tip of the apical horn. Dimensions: holotype - shell 152 Ám long, 47 Ám broad; apical horn 48 Ám long, antapical horn about 15 Ám. Another example 168x33 Ám.
Now Kalyptea. Originally (and now) Kalyptea, subsequently Komewuia, thirdly Pareodinia.
Questionable tax. jr. synonym of Pareodinia ceratophora Deflandre, 1947, according to Gocht, 1970. Lentin and Williams, 1981, retained this species as Kalyptea diceras.
Tax. sr. synonym of Kalyptea jurassica Alberti, 1961, according to Below, 1990.
Holotype: Cookson and Eisenack, 1960, pl.39, fig.1
Locus typicus: Canning Basin, W Australia
Stratum typicum: Tithonian
Original description: Cookson and Eisenack, 1960, p. 256: Kalyptea diceras
Shell ellipsoidal with apical and antapical horns of unequal length. The apical horn is relatively long, straight or curved, and consists of a short hollow basal region and a longer, and more slender solid apex. The antapical horn is considerably shorter but like the apical horn ends in a solid tip. The membrane of the shell is thin and finely granular; the external membrane in the type specimen is clearly attached to the tip of the apical horn. Dimensions: holotype - shell 152 Ám long, 47 Ám broad; apical horn 48 Ám long, antapical horn about 15 Ám. Another example 168x33 Ám.