. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. UPPERMOST CENOMANIAN-BASAL TURONIAN AMMONITES FROM SALINAS, ANGOLA 111 Buchiceras. From the host of species described, the majority of which have until now been regarded as endemic, there can be little doubt that species populations show a wide range of morphological variation, and that former narrowly defined species limits will break down when large collections are studied. At present, Metoicoceras is known abundantly from the Western Interior of North America (Shumard 1861; Hyatt 1903; Moreman 192
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. UPPERMOST CENOMANIAN-BASAL TURONIAN AMMONITES FROM SALINAS, ANGOLA 111 Buchiceras. From the host of species described, the majority of which have until now been regarded as endemic, there can be little doubt that species populations show a wide range of morphological variation, and that former narrowly defined species limits will break down when large collections are studied. At present, Metoicoceras is known abundantly from the Western Interior of North America (Shumard 1861; Hyatt 1903; Moreman 1927, 1942; Haas 1949; Cobban 1953; Stephenson 1955; Young 1957, 1958), from Europe (d'Orbigny 1842; Petrascheck 1902; Leriche 1905; de Grossouvre 1912; Karrenberg 1935), Israel (Avnimelech & Shoresh 1962), Nigeria (Reyment 1955), Angola (Douville. Fig. 29. Metoicoceras geslinianum (d'Orbigny). x 1. Lateral view of the crushed 'neotype' preserved as a composite internal mould, x Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
