. Bulletin of the British Museum (Natural History), Geology. 126 E. F. OWEN. Fig. 3 Sketch map of Cockburn Island showing W. N. Croft localities. which were based on material collected by Drs O. Nodenskjold and J. Gunnar Andersson during the Swedish Antarctic Expedition of 1902-03. The present paper is, therefore, very largely a revision of Buckman's work, bringing the systematic and taxonomic aspects up to date. Systematic descriptions Superfamily LINGULACEA Menke, 1828 Family LINGULIDAE Menke, 1828 Genus LINGULA Bruguiere, 1797 Lingula antarctica S. S. Buckman Fig. 10 1910 Lingula antarctica
. Bulletin of the British Museum (Natural History), Geology. 126 E. F. OWEN. Fig. 3 Sketch map of Cockburn Island showing W. N. Croft localities. which were based on material collected by Drs O. Nodenskjold and J. Gunnar Andersson during the Swedish Antarctic Expedition of 1902-03. The present paper is, therefore, very largely a revision of Buckman's work, bringing the systematic and taxonomic aspects up to date. Systematic descriptions Superfamily LINGULACEA Menke, 1828 Family LINGULIDAE Menke, 1828 Genus LINGULA Bruguiere, 1797 Lingula antarctica S. S. Buckman Fig. 10 1910 Lingula antarctica S. S. Buckman : 9; pi. 1, fig. 7. Buckman described this species as an elongate, parallel-sided shell with rather flat valves, having growth-lines forming an oblong pattern throughout its life history. He figured a rather poorly preserved and incomplete specimen which he felt resembled Glottidia palmeri Davidson, but without any of the characteristic median ridges within the dorsal valve. The specimen figured here, Fig. 10, is just 30 mm in length, about 5 mm longer than Buck- man's figured specimen. It was collected by members of the expedition of 1974-75 mounted by the IPS (see p. 123) and comes from their loc. 16, approximately 1 km north of the eastern headland of Penguin Bay, Seymour Island. It is preserved in a highly glauconitic sandstone of Lower Tertiary age. Buckman's specimen, which was collected from a point further eastward and nearer the coast, is from Loc. 11 of Nordenskjold & Andersson, 1902-03, and mentioned by Buckman (1910 : 3) as having abundant Bouchardia specimens and '. . crowded with examples of a small Cerithiuin', recently reidentified by Mr R. J. Cleevely, British Museum (Natural History), as Turritella sp. As Buckman pointed out (1910 : 34), the presence of a species of Lingula in beds of Tertiary age within the Antarctic is of interest since it extends the records of that genus to localities further south than Patagonia and the Australasian con
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