Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . n in the Turonian is postulated. Species previouslyreferred to Neancyloceras are reviewed. CONTENTS PAGE Introduction 219 Systematic description 221 Definition of the species 229 Generic status 232 Origin and phylogeny 234 Liniits . .t. .. 237 Acknowledgements 237 References 238 INTRODUCTION Two or, possibly, all three of Schliiters figured syntypes of Ancylocerasbipunctatum (Schluter 1872: 98, pi. 29 (figs 1-3)) (Fig. 1 (1-3 herein)) as wellas a number of other possible syntypes and topotype material were located int
Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . n in the Turonian is postulated. Species previouslyreferred to Neancyloceras are reviewed. CONTENTS PAGE Introduction 219 Systematic description 221 Definition of the species 229 Generic status 232 Origin and phylogeny 234 Liniits . .t. .. 237 Acknowledgements 237 References 238 INTRODUCTION Two or, possibly, all three of Schliiters figured syntypes of Ancylocerasbipunctatum (Schluter 1872: 98, pi. 29 (figs 1-3)) (Fig. 1 (1-3 herein)) as wellas a number of other possible syntypes and topotype material were located inthe collections of the Geologisch-Palaontologisches Institut und Museum derGeorg-August Universitat, Gottingen. Examination of Schliiters original andtopotype material allows better definition of the species and discussion of thevaUdity, origin, phylogeny, and hmits of the genus Neancyloceras Spath, 1926,of which it is the type species. 219 Ann. S. Afr. Mas. 90 (5). 1982: 219-239, 10 figs. 220 ANNALS OF THE SOUTH AFRICAN MUSEUM ^-^.^s.^--=.„• iy.;-*- .-. --^ur-i il^rfl. ^^
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
