Percival, I. G.; Simes, J. E.; Cooper, R. A.; Zhen, Y. Y. (2011). Middle Ordovician linguliformean brachiopods from the Maruia-springs junction area, New Zealand. Memoirs of the Association of Australasian Palaeontologists. 1(42): 459-492.

500044

Percival, I. G.; Simes, J. E.; Cooper, R. A.; Zhen, Y. Y.

2011

1(42): 459-492

Publication

The Sluice Box Formation, exposed in the Maruia-Lake Daniels-Springs Junction area at the southernmost extension of the Takaka Terrane, west of the Alpine Fault in New Zealand's South Island, ranges in age from late Cambrian (Furongian) to Middle Ordovician (late Darriwilian). Linguliformean brachiopods described from the upper part of the Sluice Box Formation include species previously documented from the Thompson Creek area in the northern Takaka Terrane, such as Scaphelasma paturauensis, Torynelasma takakaea and Hyperobolus? thompsonensis (herein assigned to the new genus Thomsonobolus), together with representatives of Apatobolus, Elliptoglossa, Paterula, Schizotreta, Acrosaccus?, Cyrtonotreta, Physotreta? and Undiferina. The new species Multispinula pustulosa, Hisingerella potistra, Numericoma magnaspina and Biernatia maruiaensis are described from the upper Sluice Box Formation. An unnamed zhanatellid and an enigmatic form with scaphelasmatid affinities, neither of which can be confidently attributed to known genera, are also documented. Differences in the faunal composition compared with the Thompson Creek assemblage probably reflect the slightly older age (early to middle Darriwilian, Da2-3) of that fauna, whereas the brachiopods described in this report extend over the Eoplacognathus suecicus and lower Pygodus serra zones of the mid to late Darriwilian (late Da3), based on the age of associated conodonts.

Brachiopoda

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