SciELO - Scientific Electronic Library Online

 
vol.9 suppl. A new species of Magelona (Polychaeta: Magelonidae) from southern NamibiaTarrantites, a new heteromorph ammonite genus from the Albian of Texas and Pakistan author indexsubject indexarticles search
Home Pagealphabetic serial listing  

African Natural History

On-line version ISSN 2305-7963
Print version ISSN 1816-8396

Afr. nat. history (Online) vol.9  suppl. Cape Town Jan. 2013

 

Cretaceous faunas from Zululand and Natal, South Africa. New records of Maastrichtian ammonites of the Family Kossmaticeratidae

 

 

William James KennedyI; Herbert Christian KlingerII

IOxford University Museum of Natural History, Parks Road, Oxford OX1 3PW, and Department of Earth Sciences, South Parks Road, Oxford OX1 3AN, U.K. E-mail: jim.kennedy@oum.ox.ac.uk
IINatural History Collections Department, Iziko South African Museum, P.O. Box 61, Cape Town, 8000 South Africa E-mail: hklinger@iziko.org.za

 

 


ABSTRACT

Records of two ammonite species Pseudokossmaticeras pacificum (Stoliczka, 1866) and Brahmaites (Brahmaites) mikobokensis Collignon, 1971, from the St Lucia Formation of northern KwaZulu-Natal are dated as Late Maastrichtian on the basis of associated inoceramid faunas. These records suggest that the Madagascan 'Early' Maastrichtian 'Zone ä Pachydiscus neubergicus et Pachydiscus goííeviííensis', in which these species also occur, is in part Late Maastichtian.

Key words: Cretaceous, Maastrichtian, ammonite, Pseudokossmaticeras, Brahmaites, KwaZulu-Natal, South Africa.


 

 

INTRODUCTION

The present note complements our revision of the Kossmaticeratidae from KwaZulu-Natal and Eastern Cape Province (Kennedy & Klinger, 1985) with records of two additional species. Pseudokossmaticeras pacificum (Stoliczka, 1866) was originally described from South India, and subsequently recorded from Madagascar (Collignon, 1938, p. 104, pl. 8, fig. 5; 1971, p. 38, pl. 647, fig. 2398; pl. 655, fig. 2418). Brahmaites (Brahmaites) mikobokensis Collignon, 1971 was previously known only from Madagascar. The interest of the present records is the light they shed on the age of both taxa. The occurrence of P. pacificum in South India is not precisely dated. In Madagascar, both species were recorded by Collignon (1971) from his Zone à Pachydiscus neubergicus et Pachydiscus gollevillensis, which he attributed to the Lower Maastrichtian. But the fauna of the zone contains many taxa that are exclusively Late Maastrichtian in western Europe and elsewhere, Pachydisus gollevillensis (d'Orbigny, 1850), P. jacquoti (Seunes, 1890), and Menuites fresvillensis (Seunes, 1890), typical of the lower Upper Maastrichtian fresvillensis Zone in the expanded Biscay sections (Ward & Kennedy, 1993). However, this zone is in fact upper Lower and lower Upper Maastrichtian in Ward & Kennedy 1993, e.g. fig. 14; gollevillensis, jaquoti and fresvillensis range into the lower Maastrichtian in the same figure. That the present species are of Late Maastrichtian age is confirmed by the associated inoceramids (see revision in Walaszczyk, Kennedy & Klinger, 2009). These document that P. pacificum occurs in association with the late Early and early Late Maastrichtian Trochoceramus radiosus assemblage, and B.(B.) mikobokensis with the late Early Maastrichtian 'Inoceramus' ianjonaensis assemblage. However, in Walaszczyk et al. (2009) the radiosus assemblage was assigned to Lower Maastrichtian and ianjonaensis to the Upper Maastrichtian. In Walaszczyk et al. (2010, fig. 1) the T. radiosus zone spans the Lower/ Upper Maastrichtian boundary. We conclude that the Madagascan Zone ä Pachydiscus neubergicus et Pachydiscus gollevillensis is in part at least Late Maastrichtian, given that P. (P.) neubergicus ranges into the Upper Maastrichtian in the Biscay sections (Ward & Kennedy, 1993, fig. 14).

 

CONVENTIONS

Dimensions are given in millimetres: D = diameter; Wb = whorl breadth; Wh = whorl height; U = umbilicus; c = costal dimension; ic = intercostal dimension. Figures in brackets are dimensions as a percentage of the diameter.

The suture terminology is that of Korn et al. (2003): E = external lobe; A = adventive lobe (= lateral lobe, L, of Kullmann & Wiedmann 1970); U = umbilical lobe; I = internal lobe.

SAM: South African Museum, Cape Town.

OUM: Oxford University Museum of Natural History.

 

SYSTEMATIC PALAEONTOLOGY

Suborder AMMONITINA Hyatt, 1889

Superfamily DESMOCERATOIDEA von Zittel, 1895

Family KOSSMATICERATIDAE Spath, 1922

Subfamily KOSSMATICERATINAE Spath, 1922

Genus Pseudokossmaticeras Spath, 1922 Type species

Ammonitespacificus Stoliczka, 1866, p. 160, pl. 77, fig. 9, by the original designation of Spath (1922, p. 126).

 

Pseudokossmaticeras pacificum (Stoliczka, 1866) Fig. 1A-C

1866 Ammonites pacificus Stoliczka, p. 160, pl. 77, fig. 9. 1922 A. pacificus Stoliczka; Spath, p. 126. 1938 Pseudokossmaticeras pacificum Stol.; Collignon, p. 104, pl. 8, fig. 5.

1953 P. pacificum Stoliczka sp.; Spath, p. 23.

1954 P. pacificum Stoliczka; Collignon, p. 48.

1955 P. pacificum Stoliczka; Collignon, p. 44.

1957 Pseudokossmaticeras pacificum (Stoliczka); Wright, p. L375, fig. 491.2 (copy of Stoliczka).

1971 Pseudokossmaticeras pacificum Stol.; Collignon, p. 38, pl. 647, fig. 2398; pl. 655, fig. 2418.

1989 Pseudokossmaticeras cf. pacificum (Stoliczka, 1865); Cooper, p. 252, text-fig. 1a-b. 1996 Pseudokossmaticeras pacificum (Stoliczka); Wright, p. 93, fig. 72.1 (copy of Stoliczka).

 

Type

The lectotype, here designated, is the original ofStoliczka (1866, p. 160, pl. 77, fig. 9), from the Arrialoor Group of Vencataramapooram, South India. There are also two para-lectotypes, from north of Camarapolitam.

 

Material

SAM-PCZ22195, from the Upper Maastrichtian St Lucia Formation at locality 133 of Kennedy & Klinger (1975, p. 298), cliff section and beach platforms below Charter's Creek Rest Camp, Lake St Lucia, 28°12' 38"S, 32°28'08"E.

 

Description

SAM-PCZ22195 is a well-preserved composite mould with an estimated maximum preserved diameter of 70 mm. Coiling is very evolute, the shallow umbilicus comprising an estimated 50% of the diameter, the umbilical wall low, and broadly convex, the umbilical shoulder narrowly rounded. The whorl section is compressed reniform, the whorl breadth to height ratio 0.9, with the greatest breadth just outside the umbilical shoulder. The flanks are feebly convex, convergent, the ventrolateral shoulders broadly rounded, and the venter very feebly convex. The adapertural 60° sector of the penultimate whorl bears 12 ribs, most of them narrow, weak, straight, prorsiradiate primaries that weaken and efface over the venter. Two develop a feeble umbilical bulla. There is a single narrow, prorsiradiate constriction. It is preceded by a strong, bullate collar rib, and succeeded bya much weaker rib that lacks a bulla. The preceding, adapical section of whorl is only partially exposed, with a single constriction and several bullate primary ribs. An approximately 120° sector of body chamber is preserved, with a maximum whorl height of 23.4 mm. Eighteen ribs are preserved on the fragment. All but one of the ribs are primaries. They arise at the umbilical seam and strengthen across the umbilical wall. They are straight and recti- to feebly prorsiradiate across the flanks, strengthening progressively, and passing straight across the venter where they reach their maximum strength. At the adapical end of the fragment the very regular ribbing is interrupted by a constriction that is flanked by simple ribs, the adapical one stronger than the adapertural one. The adapical collar rib is preceded by a single short intercalated rib.

 

Discussion

The ornament of the inner whorls matches well with the smaller lectotype, which has a maximum preserved diameter of an estimated 55 mm. It does not develop the coarser ribbing of the larger, adapertural sector of the outer whorl of the present specimen. The specimen from Ianjona, Madagascar, described and figured by Collignon (1938, p. 104, pl. 8, fig. 5) is 54 mm in diameter, shows a comparable change from finely ribbed inner, to progressively coarsening outer whorl, but not reaching the degree ofcoarseness developed by the present, larger specimen. Cooper (1989, p. 252, fig. 1a,b) figured a poorly preserved fragment from the same locality as the present specimen.

Pseudokossmaticeras galicianum (Favre, 1869) (p. 16, pl. 3, figs 5, 6; see revision in Kennedy & Summesberger, 1987, p. 28, pl. 2, fig. 6; pl. 3, figs 7-9; 1991, p. 93, fig. 1; Summesberger & Zorn 2012, p. 105), of which P. tchihatcheffi (Böhm, 1927) (p. 221, pl. 13, fig. 1; see Kennedy & Summesberger, 1987, pl. 2, fig. 7) is a synonym, has a higher expansion rate, quite unlike the serpenticone coiling of P. pacificum, and more numerous intercalated ribs that persist at a stage where P. pacificum has primary ribs only.

Pseudokossmaticeras duereri (Redtenbacher, 1873) (p. 118, pl. 27, fig. 2; see revision in Reyment, 1958, p. 33, pl. 7, fig. 1; Ward & Kennedy, 1993, p. 30, text-figs 16.2,16.3, 25.6; Summesberger & Zorn 2012, p. 105) is the species closest to P. pacificum. It has the same serpenticone coiling, with ribs arising in groups of two or three from small umbilical bulllae on the inner whorls, and numerous narrow crowded bullate primary ribs on the outer whorl.

Pseudokossmaticeras brandti (Redtenbacher, 1873) (p. 106, pl. 24, fig. 1), of which P. aturicus (Seunes, 1892) (p.17, pl. 15 (6), figs 2, 3) is a synonym (see revision in Hancock & Kennedy, 1993, p. 155, pl. 2, figs 4-6; pl. 4, figs 1-5; pl. 5, figs 1-8; pl. 6, figs 1-9; pl. 7, figs 5-11; Summesberger & Zorn 2012, p. 105) also has a quite distinct coiling mode, the inner whorls with coarse bullate primary ribs that increase by branching and intercalation, the outer whorl with persistent coarse bullate ribs, predominantly primaries on the body chamber. Adults reach a much larger size (Hancock & Kennedy, 1993, pl. 4, figs 4, 5).

Pseudokossmaticeras tercense (Seunes, 1892) (p. 16, pl. 15 (6), fig. 4; see revision in Hancock & Kennedy, 1993, p. 157, pl. 7, figs 1-4; pl. 8, figs 1-6) has ribs arising either singly or in pairs from small umbilical bullae with intercalated ribs on the inner whorls, and distant bar-like ribs on the outer whorl. It reaches a much larger size than P. pacificum (Hancock & Kennedy, 1993, p.191, pl. 8, figs 4-6).

Pseudokossmaticeras muratovi Mikhailov, 1951 (p. 77, pl. 13, fig. 52) is more coarsely ribbed, the ribs branching high on the flank.

 

Occurrence

Upper Maastrichtian of South India, Madagascar, and northern KwaZulu-Natal.

Genus and subgenus Brahmaites Kossmat, 1897

 

Type species

Ammonites Brahma Forbes, 1846, p. 100, pl. 8, fig. 1, by the original designation of Kossmat (1897, p. 44 (151)).

 

Brahmaites mikobokensis Collignon, 1971 Figs 1D-F, 2

1971 Brahmaites mikobokensis Collignon, p. 22, pl. 648, figs 2400-2401.

 

Type

The holotype, by original designation is the original of Collignon (1971, p. 22, pl. 648, fig. 2400, from 'Gisement 496-D, Ianjona-Ouest-Mikoboka (Manera), Madagascar', housed in the collections of the Université de Bourgogne, Dijon. It is reillustrated here as Fig. 2.

 

Material

SAM-PCZ22196, from the Maastrichtian St Lucia Formation, of locality 20 of Klinger & Kennedy, 1975 (p. 283), the cliff section at the junction of the old course of the Mfolozi, the present river, and an unnamed stream draining south from Lake Mfuthululu, ESE of Mtubatuba, coordinates: 28°26'59"S, 32°16'36"E. A fragment, OUM KX9098, is from locality 134 of Kennedy & Klinger (1975, p. 298), foreshore outcrops in Makakatana Bay, east of the village, 28°13'51"S, 32°25'08"E.

 

Dimensions

 

Description

SAM-PCZ22196 is a composite mould of a phragmocone 94.6 mm in diameter. Coiling is very evolute, the broad umbilicus comprising 50% of the diameter. The umbilicus is shallow, with a flattened, outward-inclined umbilical wall. The umbilical shoulder is narrowly rounded, the whorl section depressed reniform, with the greatest breadth at the umbilical shoulder. The whorl breadth to height ratio is 1.25. The flanks, ventrolateral shoulders and venter are broadly and evenly rounded. There are more than 40 narrow, blunt, crowded ribs that are well-developed on the ventrolateral shoulder, sweep forwards across the inner flanks, weaken progressively, and are effaced on the ventrolateral shoulders and venter. There are sixprominent prorsiradiate constrictions on the outer whorl. They sweep forwards across the flanks, and cross the ventrolateral shoulders in a broad convexity. They are interrupted at mid-venter by a narrow groove, corresponding to a low ridge on the interior of the shell, presumably marking the site of attachment of the ventral muscle. The suture is very deeply and intricately incised, the saddle E/A bifid with a very narrow, deeply dissected stem, a narrow and trifid A, and A/U2 only slightly smaller than E/A.

 

Discussion

The present specimens differs in no significant respects from the Madagascan material (Collignon, 1971, p. 22, pl. 648, figs 2400-2401). Brahmaites (Brahmaites) brahma (Forbes, 1846) (p. 100, pl. 8, fig. 1) (see revision in Kennedy & Henderson, 1992, p. 410, pl. 7, figs 1-3; pl. 8, figs 1-11; pl. 9, figs 1-4, 8-16; text-fig. 5) has whorls that are slender when compared to those of B.(B.) mikobokensis, the innermost flanks smooth, with fewer ribs, coarsely developed over the venter rather than effaced, the constrictions with much stronger collar ribs, raised into a bulla at the ventrolateral shoulder at the same size as the present specimen. Brahmaites (B.) kossmati Henderson & McNamara, 1985 (p. 68, pl. 6, figs 11-14; pl. 7, fig. 1; text-figs 9a, b, 10) has very coarse, distant ribs at the same size as the present specimen.

 

Occurrence

Upper Maastrichtian of Madagascar and northern KwaZulu-Natal.

 

ACKNOWLEDGEMENTS

Kennedy acknowledges the support of the staff of the Geological Collections, Oxford University Museum of Natural History, and the Department of Earth Sciences, Oxford, and the financial assistance of the Oppenheimer Fund (Oxford). Klinger acknowledges the technical support from the staff of the Natural History Collections Department, Iziko South African Museum and financial support of the NRF, South Africa.

 

REFERENCES

BÖHM, J. 1927. Beitrag zur Kenntnis der Senonfauna der Bithynischen Halbinsel. Palaeontographica 69: 187-222.         [ Links ]

COLLIGNON, M. 1938. Ammonites Campaniennes et Maestrichtiennes de l'ouest et du sud de Madagascar. Annales Géologiques du Service des Mines de Madagascar 9: 55-118 (1-65).         [ Links ]

COLLIGNON, M. 1954. Ammonites neocrétacées du Menabe (Madagascar). III. - Les Kossmaticeratidae. Travaux du Bureau Géologique 62: 1-59.         [ Links ]

COLLIGNON, M. 1955. Ammonites néocrétacées du Menabe (Madagascar). III. Les Kossmaticeratidae. Annales Géologiques du Service des Mines de Madagascar 22: 1-54.         [ Links ]

COLLIGNON, M. 1971. Atlas des fossiles caractéristiques deMada-gascar (Ammonites) XVII (Maestrichtien). iv + 44 pp. Tananarive: Service Géologique.         [ Links ]

COOPER, M.R. 1989. Additions to the Cretaceous ammonite fauna from Zululand. South African Journal of Geology 92: 254-260.         [ Links ]

FAVRE, E. 1869. Description desMollusques fossiles de laCraie des environs de Lemberg en Galicie. xii + 1-187. Geneva: H. Georg.         [ Links ]

FORBES, E. 1846. Report on the fossil Invertebrata from southern India, collected by Mr. Kaye and Mr. Cunliffe. Transactions of the Geological Society of London (2), 7: 97-174        [ Links ]

HANCOCK, J.M. & KENNEDY, W.J. 1993. The high Cretaceous ammonite fauna from Tercis, Landes, France. Bulletin de l'InstitutRoyal des Sciences naturelles de Belgique, Sciences de la Terre 63: 149-209.         [ Links ]

HENDERSON, R.A. & McNAMARA, K.A. 1985. Maastrichtian non-heteromorph ammonites from the Miria Formation, Western Australia. Palaeontology 28: 35-88.         [ Links ]

HYATT, A. 1889. Genesis of the Arietidae. Smithsonian Contributions to Knowledge 673: xi + 239 pp.         [ Links ]

KENNEDY, W.J. & HENDERSON, R.A. 1992. Non-heteromorph ammonites from the Upper Maastrichtian ofPondicherry, South India. Palaeontology 35: 381-442.         [ Links ]

KENNEDY, W.J. & KLINGER, H.C. 1975. Cretaceous faunas from Zululand and Natal, South Africa. Introduction, Stratigraphy. Bulletin of the British Museum (Natural History) Geology 25: 263-315.         [ Links ]

KENNEDY, W.J. & KLINGER, H.C. 1985. Cretaceous faunas from Zululand and Natal, South Africa. The ammonite family Kossmaticeratidae Spath, 1922. Annals of the South African Museum 95: 165-231.         [ Links ]

KENNEDY, W.J. & SUMMESBERGER, H. 1987. Lower Maastrichtian ammonites from Nagoryany, Ukrainian SSR. Beiträge zur Paläontologie von Österreich 13: 25-78.         [ Links ]

KENNEDY, W.J. & SUMMESBERGER, H. 1991. A note on the lectotype of Ammonites galicianus Favre, 1869. Annalen des Naturhistorischen Museums in Wien 92: 93-95.         [ Links ]

KORN, D., EBBIGHAUSEN, V., BOCKWINKEL, J. & KLUG, C. 2003. The A-mode ontogeny in prolecanitid ammonites. Palaeontology 46: 1123-1132.         [ Links ]

KOSSMAT, F. 1895-1898. Untersuchungen über die Südindische Kreideformation. Beiträge zur Paläontologie Österreich-Ungarns und des Orients 9 (1895): 97-203 (1-107); 11 (1897): 1-46 (108-153); 11(1898): 89-152 (154-217).         [ Links ]

KULLMANN, J. & WIEDMANN, J. 1970. Significance of sutures in phylogeny of Ammonoidea. University of Kansas, Paleontological Contributions 42: 1-32.         [ Links ]

MIKHAILOV, N.P. 1951. Verkhnemelovye ammonity yuga evropejskoj chasti SSSR i ikh znachenie dlya zonal'noj stratigrafii [Upper Cretaceous ammonites from the southern part of European Russia and their importance for zonal stratigraphy (Campanian, Maastrichtian)]. Trudy Instituta Geologicheskikh Akademia Nauk SSSR 129(Geology Series 50), 143 pp.         [ Links ]

ORBIGNY, A. d'. 1850. Prodrome de Paleontologie stratigraphique universelle des animaux Mollusques et rayonnés faisant suite au cours élémentaire de Paleontologie et de Geologie stratigraphiques 2,: 427 pp. Paris: Masson.         [ Links ]

REDTENBACHER, A. 1873. Die Cephalopodenfauna der Gosauschichten in den nordöstlichen Alpen. Abhandlungen der Kaiserlich-Königlich geologischen Reichsanstalt 5: 91-140.         [ Links ]

REYMENT, R.A. 1958. Neubeschreibung der Redtenbacher'schen Ammoniten-Originale aus den Gosauschichten. Stockholm Contributions in Geology 2: 314imagemaqui9.         [ Links ]

SEUNES, J. 1890. Contributions ä l'étude des céphalopodes du Crétacé Supérieur de France. 1. Ammonites du Calcaire ä Baculites du Cotentin. Mémoires de la Société Géologique de France. Série Paléontologique 1, Memoire 2: 1-7.         [ Links ]

SEUNES, J. 1892. Contribution ä l' étude des Céphalopodes du Crétacé Supérieur de France. I. Ammonites du Calcaire ä Baculites du Cotentin (Suite). II. Ammonites du Campanien de la région sous-pyrénéenne. Départment de Landes. Mémoires de la Société Géologique de France. Série Paléontologique. 2, Mémoire 2: 8-22.         [ Links ]

SPATH, L.F. 1922. On the Senonian ammonite fauna of Pondoland. Transactions of the Royal Society of South Africa 10: 113-147.         [ Links ]

SPATH, L.F. 1953. The Upper Cretaceous Cephalopod fauna of Grahamland. Scientific Reports of the Falkland Islands Dependencies Survey 3: 1-60.         [ Links ]

STOLICZKA, F. 1863-1866. The fossil Cephalopoda of the Cretaceous rocks ofsouthern India. Ammonitidae with revision ofthe Nautilidae etc. Memoirs ofthe Geological Survey ofIndia. (1), Palaeontologica Indica 3: (1), 41-56(1863); (2-5), 57-106(1864); (6-9), 107-154(1865); (10-13), 155-216(1866).         [ Links ]

SUMMESBERGER, H. & ZORN, I. 2012. A catalogue of the type specimens of Late Cretaceous cephalopods housed in the collections of the Geological survey of Austria in Vienna. Jahrbuch der Geologischen Bundesanstalt 152: 101-144.         [ Links ]

WALASZCZYK, I., KENNEDY, W., J. & KLINGER, H.C. 2009. Cretaceous faunas from Zululand and Natal, South Africa. Systematic palaeontology and stratigraphic potential of the Upper Campanian-Maastrichtian Inoceramidae (Bivalvia). African Natural History 5: 40-132.         [ Links ]

WARD, P.D. & KENNEDY, W.J. 1993. Maastrichtian ammonites from the Biscay region (France, Spain). Memoir of the Paleontological Society 34: 58 pp.         [ Links ]

WRIGHT, C.W. 1957. [Cretaceous Ammonoidea]. In: MOORE, R.C. (ed.) Treatise on Invertebrate Paleontology. Part L, Mollusca 4, Cephalopoda Ammonoidea. xxii + 490 pp., New York and Lawrence, Kansas: Geological Society of America and University of Kansas Press.         [ Links ]

WRIGHT, C.W. 1996. In Treatise on Invertebrate Paleontology. Part L, Mollusca 4: Cretaceous Ammonoidea. xx + 362 pp (with contributions by J.H. Calloman (sic) and M.K. Howarth). Boulder, Colorado and Lawrence, Kansas: Geological Society of America and University of Kansas.         [ Links ]

ZITTEL, K.A. VON 1895. Grundzüge der Paläontologie (Paläo-zoologie). Munich & Leipzig: R. Oldenbourg.         [ Links ]

 

 

Received 24 January 2013.
Accepted 26 August 2013