Restricted forms:—

(M) *Pacitrigonia Marw. (1932, p. 507), *Protodolium Wilck. (1922, p. 18), Trigonia waiparaensis Woods (1917, p. 23), *T. pseudocaudata Hect., *Inoceramus australis Woods, *I. steinmanni pacificus Woods, *Eriphyla meridiana (Woods), *Anthonya elongata Woods, *Callistina wilckensi Woods and thomsoni Woods (see Tikia Marw., 1926D, p. 595), *Conchothyra parasitica Hutt., *Dentalium morganianum Wilck.

(M: Cephalopoda) *Madrasites haumuriensis (Hect.), *Cheirobelus lindsayi (Hect.).

(F) Spiroplectammina piripaua, Gaudryina healyi, Dorothia biformis and clongata, Palmula cf. primitiva Cush. and rakauroana, Pseudoglandulina parallela (Marss.), Buliminella sauria, Patellina piripaua, Gyroidina globosa (v. Hag.), Anomalina piripaua, Pulvinulinella creta and acutimarginata, Planulina rakauroana, Allomorphina whangaia; (from the upper part alone, Waipara greensands) Planularia whangaia, Bolivina incrassata Reuss, Elongobula creta.

First appearance of:—

(M) *Cucullaea Lamk., *Cucullastis F. and M., *Lahilleona Marw., Glycimerita F. and M., *Conchothyra Hutt., *Struthioptera F. and M. (1937, p. 61), Lunatia Gray (selwyniana Wilck.), *Maoricrypta (hochstetteriana Wilck.).

(B) Aetheia Th.

(F) Gaudryina d'Orb., Dorothia Plummer, Pseudoglandulina Cush., Buliminella Cush., Chilostomella Reuss, Ellipsonodosaria Silv. (of verneuili d'Orb. type), Patellina Will., Pulvinulinella Cush., Pullenia P. and J.

Nodosaria longiscata d'Orb. and cf. filiformis Renuss, Bulimina of the pupoides d'Orb. line (as quadrata Plummer), Gyroidina of the zelandica line.

(b) Tapuwaeroa Series, North Island.

Type locality not designated; by tautonomy should be somewhere in Tapuwaeroa Valley (see Ongley and Macpherson, 1928, p. 23), but insufficient macro- and micro-faunas are known from here as yet. The formation rests unconformably on the Clarentian Raukumara beds, and is overlain by unconformable Mangatu or by overthrust Taitai.

The Whangai (Quennell, 1937, p. 3) is not here faunally separated, as there are few macro-fossils, the micro-faunas are poor, and the line of division uncertain. Some of the Foraminifera quoted below will probably be restricted later to a horizon above Tapuwaeroa—possibly a reconstituted Mangatu. Of this the Waipara greensands may be a South Island equivalent.

Restricted forms:—

(M) *Ostrea lapillicola Marw. (1926B, p. 381).

(F) Ammodiscoides Cush. (reappears in Recent fauna), Conotrochammina (as whangaia), Rzehakina Cush. (as epigona Rze.), Bolivinoides Cush. (as dorreeni), Rotamorphina (as cushmani), Globotruncana n.sp.

Spiroplectammina steinekei, Vulvulina büningi, Gaudryina whangaia, Eggerella columna, Matanzia simulans, Palmula rugosa d'Orb. and thalmanni, Frondicularia mucronata Reuss, teuria, and steinekei, Planularia rakauroana, Pseudoglandulina cylindracea (Reuss), Gümbelina panikauia, Bulimina rakauroana, Nonionella tamumua, Eponides infrafossa, Nuttallides alatus (Marsson) and tholus, Globotruncana n.sp., Globigerina circumnodifera; together with all the South Island species except Patellina.

First appearance of:—

(F) Bolivinopsis Yakov. (as spectabilis Grzyb.), Vulvulina d'Orb., Matanzia Palmer, Tritaxilina Cush. (as n.sp.), Clavulinoides Cush. (of instar line), Citharinella Marie, Gümbelina Egger, Nonionella Cush., Nuttallides (several species), Parrella, Quadrimorphina (as allomorphinoides Reuss), Discorbis of bertheloti (d'Orb.) line (as n.sp.).

Trochamminoides irregularis White, Cyclammina cf. pusilla Brady, Karrerulina aegra, Pseudoclavulina cf. anglica (Cush.), Bulimina bortonica, Anomalina aotea and eoglobra, Eponides ecuadorensis (G. and M.), Nuttallides subtrümpyi (small specimens), Cibicides of perforatus Karrer line, Allomorphina trochoides (Reuss), Globorotalia of dehiscens C., P., and C. line (as n.sp.), Globigerina linaperta.

Last appearance of:—

(M) *Aucellina Pompeckj (in Tinui Series), *Ammonites, and *Inoceramus.

(F) Rzehakina Cush. (as epigona Rze.; abundant), Planularia Defr. (until the Recent spinipes Cush.).

Karrerulina clarentia, Marssonella cf. oxycona (Reuss), Globigerinella aspera (Ehrenb.).

Post-Piripauan.

The Amuri “Teredo limestone” has yielded no fossils as yet, except the little Belemnites, and cannot be discussed faunally.

Wangaloan.

Type Locality:—Mitchell's Point, Wangaloa (Ongley, 1939, p. 56).

Sediments:—Concretionary zone in sandstone, 50 + ft. thick, overlying Taratu and Kaitangata coal measures, the latter resting on schist. Overlain by unfossiliferous sandstone.

Fauna:—Molluscs abundant.

Correlatives:—(By molluscs) Otago (Boulder Hill, Dunedin); (by stratigraphical position between Bortonian and Piripauan) North Otago (? Katiki-Moeraki Series, with good foram faunas but only arenaceous species).

Restricted forms:—

(M) The following genera of Finlay and Marwick, 1937; *Cucullona, *Dosinobia, *Leptocolpus, *Colposigma, *Kaitangata, *Amauropsona, Spirogalerus, *Microfulgur, Tudiclana, *Fyfea, Taieria, *Proficus, *Taioma, Antepepta, Coptostomella, *Pristimerica,

*Campylacrum, *Tholitoma, *Ongleya; also *Marwickia Finlay, Drepanochilus Meek, *Heteroterma Gabb, *Paleopsephaea Wade. All of the species are restricted.

First appearance of:—

(M) *Electroma Stol., *Limopsis Sassi, *Venericardia Lk. (s.l.), Milthoidea Marw., *Pteromyrtea Fin., *Dosinia Scop. (as Dosinobia F. and M.), *Wangaloa Fin., *Globisinum Marw., *Polinella Marw., *Spelaenacca Fin., Zexilia Fin., *Pseudofax F. and M., ? Insolentia Fin., *Marshallaria F. and M., *Priscaphander F. and M., *Acteon Mont., *Tornatellaea Con., Lornia Marw.

Last appearance of:—

(M) *Spineilo F. and M., *Cucullastis F. and M., *Lahilleona Marw., *Proscala Cossm., *Bittiscala F. and M., *Conchothyra Hutt., *Struthioptera F. and M.

No micro-fauna is present at the type locality, but in the probably equivalent Katiki-Moeraki Series Ammobaculites Cush., Ammomarginulina Wiesner, and Karreriella aegra are common, Pseudoclavulina cf. anglica Cush. is last seen, and Textularia cf. eocenica Gümbel and Bolivinopsis aff. rosula (Ehren.) first appear.

Bortonian.

Type Locality:—Black Point, Borton's, Waitaki Valley (Allan, 1933, p. 87). The actual type locality is so unsatisfactory that Allan has suggested that a palaeontological basis be given to the Bortonian by the well-preserved molluses from Waihao Downs. Since a better sequence of beds and much richer micro-faunas (in addition to numerous molluscs) are available at Hampden, this may be regarded at present (in preference to the Lower Waihao suggested by Allan) as the standard section for correlation until the Borton's–Ngapara area is closely examined.

Sediments:—Glauconitic sandstone 50± ft. thick, poorly exposed over a small area, overlying quartz conglomerates (coal measures) that rest on semi-schist. At Hampden, glauconitic mudstones and greensand rest on the Moeraki black mudstones, and are overlain conformably by a less glauconitic bed with a Tahuian micro-fauna. The lower part of the Moeraki Series (Brown, 1938) is of approximately Wangaloan age, but the upper part, separated by a greensand band, has a definite Eocene microfauna, and is here temporarily included with the Bortonian as Lower Bortonian.

Fauna:—Badly preserved molluses, but the index genera Monalaria, Notoplejona, and Fascioplex present.

Correlatives:—South Otago (Castle Hill shaft; see Finlay and Marwick, 1937, p. 95); North Otago (glauconitic sandstone covering many square miles in Ngapara district); South Canterbury (Waihao Valley, Raincliff district, Kakahu, Ashburton River); Westland (“Island Sandstone” of Ten Mile Bluff near Greymouth). At all these localities the beds have definitive molluscan faunas and rest on coal measures overlying old rocks. In North Canterbury, Hawke's Bay, Poverty Bay and North Auckland, argillaceous and calcareous beds, in places glauconitic or sandy at the base, contain rich foram