Material

The types of new species are in the macropaleobotanical collection of the New Zealand Geological Survey, Department of Scientific and Industrial Research, Wellington.

The list below gives in the following order: N. Z. Geological Survey Register number, sheet fossil number, collectors and year, grid references, lithology, and stratigraphic position. Molluscs from the N133 and N124 One-Mile Sheet districts were identified and ages determined by Mr. O. P. Olson, N.Z. Geological Survey.

B163: N133/534 “Erewhon” Station, probably same as N133/509. J. Park 1886. ? 349339.^*. Yellow brown micaceous siltstone, moderately hard.

B195: N98/503 Ormond, Waipaoa Valley, H. Hill, M. Ongley 1910–1916. 320510. Creamy yellow tuffaceous siltstone, soft. Castlecliffian (Oliver, 1928: 287).

B206, 209, 215: N124/501, 503, 510 Esk Valley, on powerline road, E. of Te Pohue P. R. and D. R. McQueen, 1950. 214649. Light yellow brown siltstone, soft. Interbedded with Nukumaruan molluscs.

B226: N135/506 Rangitawa Stm. Halcombe P. R. and D. R. McQueen, 1951. 965625. Carbonaceous grey sandy siltstone, very soft Interbedded with Upper Castlecliffian molluscs (Te Punga, 1952·23).

B228: N133/522 Rangitikei R. road cutting 1/2 mile S. of Matawhero Rd. bridge P. R. and D. R. McQueen, A. P. Druce, 1951. 351331.* Yellow brown micaceous siltstone, moderately hard. Conformably beneath Opoitean molluscs.

B230: N133/509 Rangitikei R 1 mile downstream from Inland Patea Road Bridge. P. R. and D. R. McQueen, A P. Druce, 1951. 349339.*Yellow brown micaceous siltstone, moderately hard. 1–200ft. conformably below Opoitean molluscs.

B249: N47/514 Railway cutting south of Pokeno Station. D. Kear and D. R. McQueen. 1952. 549122 Brown carbonaceous mudstone, soft Castlecliffian (Couper and McQueen, 1954).

B323: N55/522 Mouth of Ohuka Ck Raglan Co D. Kear, D. R. McQueen, 1952 277788. Purple brown pumiceous siltstone, soft, ? Nukumaruan (Couper and McQueen, 1954).

B328: N52/562. Cutting on present main trunk railway, about 1 mile north of Whangamarino Railway Station. P. R. and D. R. McQueen, D. Kear, 1952 Light brown siltstone, soft. ? Lower Wanganui Series.