Abstract
Eighty-six species of bivalves belonging to 49 genera are identified. Seventy-four species are described. Eleven of them are new: Lopatinia callomoni, Modiolus elongatus, Aguilerella aldingeri, Camptonectes milnelandensis, Tancredia magna, ?Pronoella superjurensis, Isocyprina birkelundi, Hartwellia borealis, Goniomya bicarinata, Pleuromya triangularis, and Pleuromya zakharovi. One new subspecies, Limatula consobrina multicostata is also described, and two new subgenera are erected: Strimodiolus and Costicamptonectes. The autecology of each species is discussed and comprehensive faunal lists, which include the remaining benthic invertebrates, are given for each member.
Highlights
The first descriptions of Upper Jurassic bivalves from East Greenland were by Madsen (1904) and Ravn (1911) who worked on material, from Jameson
The material collected by Rosenkrantz and Aldinger was subsequently worked on by Spath (1935, 1936) who published the first detailed taxonomic descriptions of the Upper Jurassic invertebrate fauna from Milne Land
Mainly brief, descriptions of Upper Jurassic bivalves from East Greenland are found in Frebold (1933), Spath (1947) and Donovan (1953)
Summary
The first descriptions of Upper Jurassic bivalves from East Greenland were by Madsen (1904) and Ravn (1911) who worked on material, from JamesonLand and North-East Greenland (Kuhn ø, Hochstetter Forland), collected by the Danish Expedition in 1900. The material collected by Rosenkrantz and Aldinger was subsequently worked on by Spath (1935, 1936) who published the first detailed taxonomic descriptions of the Upper Jurassic invertebrate fauna from Milne Land. Within the Upper Jurasssic, the first horizons yielding a rich fauna are in sandstones of the Kosmocerasdal Member where Grammatodon keyseriingii, together with several other bivalve species and the polychaet Ditrupa, form shell beds a few centimetres in thickness.
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