Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990)
(Pl. 28c): GS9478, N33/f9804, Kaiwara River near "Athol Glen", North Canterbury, late Tongaporutuan (GNS)
Beu & Maxwell (1990): Chapter 13; p. 256; pl. 28 c.
Synonymy: Sectipecten grangei Boreham 1961, p. 660
Description: Most characters as in Sectipecten wollastoni (above); differs from S. wollastoni in being a little smaller, in being slightly more obliquely elongate posteroventrally, in being a little less inflated, in having a slightly deeper byssal sinus and, principally, in having much more complexly subdivided sculpture, lacking any undivided, smooth-topped major costae.
Comparison: See under Sectipecten wollastoni.
Distribution: Tongaporutuan; Te Wera Quarry, central Taranaki, late Tongaporutuan (type; Boreham 1961, p. 661); widespread in facies where fine sediment was being bypassed during deposition (greensand, conglomerate, a few limestone beds), mostly in very near-shore facies, in North Taranaki, the Ngamatea Plateau (Napier-Taihape Road), northern Ruahine Range near Kuripapango, northern Wairarapa near Mount Bruce, the Kaiwara River in North Canterbury, and in Callaghan's Greensand in Westland.
Cite this publication as: "A.G. Beu and J.I. Raine (2009). Revised
descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990). GNS
Science miscellaneous series no. 27."
© GNS Science, 2009
(Included with a PDF facsimile file copy of New Zealand Geological Survey Paleontological Bulletin 58 in CD version from: Publications Officer, GNS Science, P.O. Box 30368 Lower Hutt, New Zealand)