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Diphyes appendiculare
Diphyes appendicularis Cookson and Eisenack, 1970
Holotype: Cookson and Eisenack, 1970, pl.13, fig.5
Locus typicus: Madura No. 1 Bore, 963-966 ft, Eucla Basin, Australia
Stratum typicum: Senonian
Original description: Cookson and Eisenack, 1970, p.149
Shell composcd of two portions of very unequal size. The anterior portion is large, probably originally spherical, and closely covercd with relatively small appendages which narrow from broadish bases to almost hair-like distal apices. The much smaller posterior portion is in the form of a relatively prominent, hollow, unornamented projection, longer than broad, with a slightly serrated rim.
Dimensions: Holotype: overall length c. 90 Ám, overall breadth 95 Ám, antapical projcction c. 31 Ám long, c. 23 Ám broad at base, narrowing to c. 13 Ám, and widening again to c. 18 Ám at the extremity.
Affinities:
Cookson and Eisenack, 1970, p.149: The two specimens of D. appendicularis from the Madura No. 1 Bore differ from the type species D. colligerum Cookson 1965 from Victorian Tertiary and Upper Cretaceous deposits in the extreme difference in size that exists between the two portions of the shell. In addition, the type of appendage is quite distinct from that of D. colligerum.
Holotype: Cookson and Eisenack, 1970, pl.13, fig.5
Locus typicus: Madura No. 1 Bore, 963-966 ft, Eucla Basin, Australia
Stratum typicum: Senonian
Original description: Cookson and Eisenack, 1970, p.149
Shell composcd of two portions of very unequal size. The anterior portion is large, probably originally spherical, and closely covercd with relatively small appendages which narrow from broadish bases to almost hair-like distal apices. The much smaller posterior portion is in the form of a relatively prominent, hollow, unornamented projection, longer than broad, with a slightly serrated rim.
Dimensions: Holotype: overall length c. 90 Ám, overall breadth 95 Ám, antapical projcction c. 31 Ám long, c. 23 Ám broad at base, narrowing to c. 13 Ám, and widening again to c. 18 Ám at the extremity.
Affinities:
Cookson and Eisenack, 1970, p.149: The two specimens of D. appendicularis from the Madura No. 1 Bore differ from the type species D. colligerum Cookson 1965 from Victorian Tertiary and Upper Cretaceous deposits in the extreme difference in size that exists between the two portions of the shell. In addition, the type of appendage is quite distinct from that of D. colligerum.