Annals of the South African Museum, Volume 91The Museum, 1983 - Natural history |
From inside the book
Results 1-3 of 36
Page 51
... secondary plates arise later in astogeny at right angles to the primary plates , and anastomose with them . These secondary plates originate from a frontally budded group of three to seven zooids that later form a bilaminar expansion ...
... secondary plates arise later in astogeny at right angles to the primary plates , and anastomose with them . These secondary plates originate from a frontally budded group of three to seven zooids that later form a bilaminar expansion ...
Page 89
... secondary orifice . A single avicularium present in early ontogeny , elongate , extending obliquely medially , between the spiramen and the secondary orifice . Smaller frontal avicularia abundant in later ontogenetic stages ..... A ...
... secondary orifice . A single avicularium present in early ontogeny , elongate , extending obliquely medially , between the spiramen and the secondary orifice . Smaller frontal avicularia abundant in later ontogenetic stages ..... A ...
Page 258
... secondary palate is not extensive compared with later dicynodonts , the lateral pterygoid process ( trans- verse flange ) is pronounced , the ventral edge of the median vomer plate bears a shallow trough , and there is no preparietal ...
... secondary palate is not extensive compared with later dicynodonts , the lateral pterygoid process ( trans- verse flange ) is pronounced , the ventral edge of the median vomer plate bears a shallow trough , and there is no preparietal ...
Other editions - View all
Common terms and phrases
Adeonella adventitious avicularia Aulacephalodon avicularia basal Beaufort West Bioclimatic Region BMNH boss Brodiella Broom Bryozoa Busk caniniform process Canu & Bassler Chaperia Cheilostomata chiefdoms Cleidochasma Cluver condyles convex cryptocyst cystid dentary described Description Colony encrusting developed dicynodonts distinct dorsal edge eLangeni elongate Emydops Eodicynodon Etymology fauna forms Frontal wall genera genus granular grooves Harmer Hayward & Cook Hayward & Ryland Holotype intertemporal region Jullien kwaButhelezi labellum later ontogenetic lower jaw mandible marginal pores Material Holotype Material Stations SM maxilla Measurements means medially Meiring Naude O'Donoghue opesia Ovicell paired palatal palatine parietals peristome Polyzoa postcanine postcanine teeth posterior postorbital premaxilla present Primary orifice proximal border pterygoid Remarks Rhynchozoon ridge Robertia rostrum secondary orifice secondary palate sinus skull roof slender South African Museum spiramen Stations SM 163 surface therapsids triangular Tropidostoma tusk type species type specimen ventral vicarious avicularia zooids Zool