Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 191
... forms and umbilical tubercles reduced . 1. Decrease in overall size . 2. Lateral lobe ( L ) changes from asymmetric to symmetrically trifid . 3. Whorl section becomes more compressed . 4. Coiling criocone whorls becomes more regular ...
... forms and umbilical tubercles reduced . 1. Decrease in overall size . 2. Lateral lobe ( L ) changes from asymmetric to symmetrically trifid . 3. Whorl section becomes more compressed . 4. Coiling criocone whorls becomes more regular ...
Page 203
It is similar to a new species described below in possessing umbilical tubercles . 7. Mozambique . The original labeceratid material on which Spath's ( 1925 : 191 , et seq . ) descriptions were based , are probably from near Catuane in ...
It is similar to a new species described below in possessing umbilical tubercles . 7. Mozambique . The original labeceratid material on which Spath's ( 1925 : 191 , et seq . ) descriptions were based , are probably from near Catuane in ...
Page 211
... and the ventral ribs and tubercles of the preceding whorls slightly impressed in the dorsum of succeeding whorls . Umbilical width increases A B C D E F. G H J Fig THE AMMONITE SUBFAMILY LABECERATINAE 211 Description of a new species.
... and the ventral ribs and tubercles of the preceding whorls slightly impressed in the dorsum of succeeding whorls . Umbilical width increases A B C D E F. G H J Fig THE AMMONITE SUBFAMILY LABECERATINAE 211 Description of a new species.
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Common terms and phrases
abbreviated according addition Angola aperture appear Australia author's name authors Basin becomes besairiei Cape Basin capital ceras climate coiling Collection Collignon common consists definitely described DESCRIPTION differences dimorphism distinct distribution effects Ellipsoceras et al faunas figures followed forms Förster genera genus given Hamites Hamitoides heteromorph Holotype illustrations India initial italics Kennedy Klinger known Labe Labeceras and Myloceras Labeceras crassetuberculatum Labeceras plasticum Labeceratinae lateral lateral lappets letter lobes locality lower mainly material McNamara Myloceras gr Myloceras serotinum Spath Note occur original Ornament possible probably range recorded rectum reduced references Reyment ribs River seems separates shaft similar single Smith South African Museum South Atlantic southern species specimens stratigraphic subfamily Labeceratinae suggested Synonymy systematics type species umbilical tubercles Upper Albian ventral Whitehouse whorl section Zone Zululand
Bibliographic information
| Title | Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum Volume 98, Issue 7 of Annals of the South African Museum, South African Museum |
| Author | South African Museum |
| Publisher | West, Newman & Company for the trustees of the Museum, 1989 |
| Original from | the University of California |
| Digitized | 20 Jul 2016 |
| ISBN | 0868131016, 9780868131016 |
| Export Citation | BiBTeX EndNote RefMan |