Annals of the South African Museum, Volume 110The Museum, 2003 - Natural history |
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Page 95
Description The shell is compressed , with virtually the entire preceding whorl covered . The umbilicus is very involute ( 5 per cent of the shell diameter ) , pit - like , with a sloping umbilical wall and subrounded shoulder .
Description The shell is compressed , with virtually the entire preceding whorl covered . The umbilicus is very involute ( 5 per cent of the shell diameter ) , pit - like , with a sloping umbilical wall and subrounded shoulder .
Page 115
Mossamedites provides the link between evolute and moderately inflated Puzosia , e.g. P. compressa Kossmat , and very evolute and compressed Hauericeras of the Santonian , with a conspicuously raised siphonal keel .
Mossamedites provides the link between evolute and moderately inflated Puzosia , e.g. P. compressa Kossmat , and very evolute and compressed Hauericeras of the Santonian , with a conspicuously raised siphonal keel .
Page 253
During ontogeny , the whorl section on the phragmocone changes from depressed ( adapical - abapical ) to rounded to distinctly laterally ( dorsal - siphonal ) compressed . Coiling in the phragmocone is both sinistral and dextral .
During ontogeny , the whorl section on the phragmocone changes from depressed ( adapical - abapical ) to rounded to distinctly laterally ( dorsal - siphonal ) compressed . Coiling in the phragmocone is both sinistral and dextral .
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Common terms and phrases
ammonites Angola Annals anterior arch archosaurs articulates base become BMNH body chamber Broom Campanian Cape caudal vertebrae closely Cobban coiling collections Collignon complete compressed Coniacian consists constrictions Cooper Cretaceous cylindraceum described Description diameter differs Diplomoceras Discussion distal dorsal early edge elements Erythrosuchus africanus Eubostrychoceras example fauna Figure flanks fossils fragments genus Geological Gower History holotype Howarth incomplete Kennedy Klinger known KwaZulu Lateral view LIBRARY locality lower Maastrichtian Madagascar material Matsumoto maxilla medial Middle narrow Natural occurrence original ornament Paleontology phragmocone position possibly posterior present preserved probably proximal referred represented ribs rounded Santonian shaft shell shows similar single skull slightly Society South African Museum Spath species specimens St Lucia Formation suggests surface suture text-fig tubercles Turonian Type species umbilical Upper Upper Cretaceous venter ventral ventrolateral vertebrae whorl whorl section
Bibliographic information
| Title | Annals of the South African Museum, Volume 110 Annals of the South African Museum, South African Museum |
| Contributor | South African Museum |
| Publisher | The Museum, 2003 |
| Original from | University of California, Berkeley |
| Digitized | 26 Jan 2016 |
| Export Citation | BiBTeX EndNote RefMan |