Ordovician graptolites of North-west Nelson: Recent discoveries in the Aorangi Mine area

Publisher Website
Google Scholar
Abstract
A short note brings the history of research on New Zealand graptolites up to date. Fourteen fossiliferous collections from the Aorangi Mine area are briefly discussed. Of these, two (GS 7485 and 7493) belong to the Lancefieldian subzone La 2a, not hitherto recorded from North-west Nelson, and characterised by the presence of Dictyonema pulchellum T. S. Hall. One other assemblage (GS 7483) contains four-branched Tetragraptus fruticosus J. Hall, associated with three branched T fruticosus, and belongs to the Upper Bendigonian (Be 3), a Victorian zone not known previously in New Zealand. In the systematic descriptions, Dictyonema pulchellum T. S. Hall (first record in New Zealand), T. whitelawi (first record from North-west Nelson), Didymograptus cf. asperus Harris and Thomas (first record from New Zealand), Trigonograptus cf. ensiformis (Hall) (first record from New Zealand), and Isograptus forcipiformis Rue, var. harrisi n. var. are described in detail.

This publication has 2 references indexed in Scilit: