Final Epithet
Polypodorhabdus beckii Medd, 1979
Basionym

Polypodorhabdus beckii Medd, 1979

Optical Properties

The entire species exhibits first-order, slightly greyish-white interference colours. The pelaga of Polypodorhabdus beckii exhibits inclined extinction and length-slow (+) elongation in their natural settling position, in plan view under crossed polars.

Remarks

Species of Polypodorhabdus are constructed of cretarhabdid shields and a tube cycle surrounding a large central area spanned by an axial cross that supports a distal process. The intercross area is occupied by lateral bars that delimit elongated slits arranged in a single cycle. The number of lateral bars is typically 4 a characteristic feature of Polypodorhabdus beckii.

References

Medd, A.W. 1979. The Upper Jurassic coccoliths from the Haddenham and Gamlingay boreholes (Cambridgeshire, England). Eclogae Geologicae Helvetiae. 72: 19-109.