Annals of the South African Museum |
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Page 6
Darragh ( 1986 ) has recently suggested derivation of Eotrigonia from Neocomian species such as Trigonia vertistriata Skwarko and T. marumbiana Skwarko , via the late Cretaceous T. miriana Skwarko . The writer is unaware of any Senonian ...
Darragh ( 1986 ) has recently suggested derivation of Eotrigonia from Neocomian species such as Trigonia vertistriata Skwarko and T. marumbiana Skwarko , via the late Cretaceous T. miriana Skwarko . The writer is unaware of any Senonian ...
Page 7
Genus Trigonia Brugière , 1789 Type species . Venus sulcata Hermann , 1781 ; ICZN Opinion 327 ( 1955 ) . Diagnosis Escutcheon with radial ornament ; flank costae terminating at the antecarinal sulcus or marginal carina .
Genus Trigonia Brugière , 1789 Type species . Venus sulcata Hermann , 1781 ; ICZN Opinion 327 ( 1955 ) . Diagnosis Escutcheon with radial ornament ; flank costae terminating at the antecarinal sulcus or marginal carina .
Page 27
Trigonia conocardiiformis ( Krauss ) Lycett , 1879 : 210 , 211 , 230. Paulcke , 1903 : 309. Kitchin , 1908 : 119 , pl . 7 ( figs 2-4 ) . Lambert , 1944 : 392. Stoyanow , 1949 : 80. Reyes , 1970 : 9 . non Trigonia aff . conocardiiformis ...
Trigonia conocardiiformis ( Krauss ) Lycett , 1879 : 210 , 211 , 230. Paulcke , 1903 : 309. Kitchin , 1908 : 119 , pl . 7 ( figs 2-4 ) . Lambert , 1944 : 392. Stoyanow , 1949 : 80. Reyes , 1970 : 9 . non Trigonia aff . conocardiiformis ...
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Common terms and phrases
Alcyonium bands base baskets basketwork branches calyces Cape capitulum carina close coil coil foundation coll collected colony colour common continued coral cord crossing decorative depth described Description diagonal DIEGO Distribution double Durban edge effect elements entire escutcheon example fabric Family figures flank costae flat foundation front genus gives Group growth height included Kitchin knotted lateral lattice length margin material mats multiple narrow Natal ornament oversewing patterns placed plain plaited Point polyparium polyps present recorded region Remarks retracted round sclerites seen separate sewing strand sewn shape side simple single smooth sometimes Sotho South African Museum southern Africa species specimens spindles stalk stitch straight surface technique Thomson Tixier-Durivault Trigonia tuberculate twilled twine twisted Type UNIVERSITY usually warps weave weft wide winnowing baskets woven wrapped Zulu