Offshore of Natal [Mzamba Fm] (Cretaceous of South Africa)

Where: South Africa (30.8° S, 30.6° E: paleocoordinates 48.0° S, 16.3° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Mzamba Formation, Late/Upper Santonian (85.8 - 83.5 Ma)

• STRATIGRAPHIC RELATIONS: Probably from the onshore Mzamba Fm on the basis of faunal similarity. AGE: Middle Santonian to Early Campanian, on the basis of ammonite biostratigraphy. Assigned here to intermediate age of Late Santonian. STRATIGRAPHIC POSITION: From concretion exposed on seafloor surface.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, fine-grained, ferruginous siliciclastic sediments

• ENVIRONMENT: Shallow marine siliciclastic setting.
• SPECIFIC LITHOLOGY: Ferruginous internal molds. Traces of the fine-grained, ferruginous matrix adhere to some of the specimens. Unfortunately no other data on the lithology of the are are available. LITHIFICATION: Lithified, on the basis of facies description.

Size class: macrofossils

Preservation: cast, mold/impression, concretion

Collection methods: surface (float),

• COLLECTOR: Vessel Mering Naude. REPOSITORY: South African Museum (SAM).

Primary reference: H. C. Klinger. 1985. Upper Cretaceous Cephalopoda from offshore deposits off the Natal south coast, South Africa. Palaeontologia Africana 26(1):1-11 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 82520: authorized by Austin Hendy, entered by Austin Hendy on 28.07.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonites and nautiloids. Bivalves, gastropods, brachiopods, and corals are all mentioned as present, but not listed. NOMENCLATURE: An authoritative publication, with modern nomenclature, and species-resolution identifications preservation permitting.
Cephalopoda
 Phylloceratida - Phylloceratidae
Phylloceras (Hypophylloceras) woodsi van Hoepen and Hoepen 1921 ammonite
Partschiceras umzambiense van Hoepen 1920 ammonite
 Ammonitida - Tetragonitidae
Saghalinites nuperus van Hoepen 1921 ammonite
Saghalinites cala Forbes 1846 ammonite
 Ammonitida - Desmoceratidae
"Hauericeras cf. gardeni" = Hauericeras (Gardeniceras) gardeni Baily 1855 ammonite
Desmophyllites diphylloides Forbes 1846 ammonite
 Ammonitida - Kossmaticeratidae
Kossmaticeras (Natalites) africanus van Hoepen 1920 ammonite
 Ammonitida - Nostoceratidae
"Bostrychoceras" indicum, "Hyphantoceras (Madagascarites) amapondense" = Amapondella amapondense
"Bostrychoceras" indicum Stolickza 1866 ammonite
"Hyphantoceras (Madagascarites) amapondense" = Amapondella amapondense van Hoepen 1921 ammonite
 Ammonitida - Baculitidae
Baculites bailyi Woods 1906 ammonite
 Nautilida - Nautilidae
Eutrephoceras sphaericum Forbes 1846 nautiloid
SUBSPECIES: E. sphaericum geinitzi