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Form and function in a Recent free living brachiopod Magadina cumingi

Published online by Cambridge University Press:  25 May 2016

Joyce R. Richardson
Affiliation:
National Museum of Victoria, Russell St., Melbourne, Victoria, 3000
Jeanette E. Watson
Affiliation:
National Museum of Victoria, Russell St., Melbourne, Victoria, 3000

Abstract

Magadina cumingi (Davidson) lives in an environment of high current energy and mobile sediments using the pedicle as an elevating device. This previously undescribed substrate relationship is reflected in pedicle form, the muscular system, distribution of secondary thickening and characters of the beak. The cardinalia provide the evidence of key differences in the muscular system from an attached species Magellania australis (Quoy and Gaimard) and a free lying species with atrophied pedicle Neothyris lenticularis (Deshayes). The possession of an open foramen in articulate brachiopods is not synonymous with permanent attachment.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

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References

Literature Cited

Bromley, R. G., and Surlyk, F. 1973. Borings produced by brachiopod pedicles, fossil and Recent. Lethaia. 6:349365.Google Scholar
Chun, K. 1900. Aus den Tiefen des Weltmeeres. 549 pp. Gustav Fischer; Jena.Google Scholar
Cooper, G. A. 1973a. New Brachiopoda from the Indian Ocean. Smithson. Contrib. Paleobiol. 16:143.Google Scholar
Cooper, G. A. 1973b. Vema's Brachiopoda (Recent). Smithson. Contrib. Paleobiol. 17:151.Google Scholar
Davidson, T. 1887. A monograph of Recent Brachiopoda. Part 2. Trans. Linn. Soc. Lond. 4:75182.Google Scholar
Ekman, T. 1896. Beiträge zur Kenntnis des Stieles der Brachiopoden. Z. wiss. Zool. 62:169249.Google Scholar
Grant, R. E. 1965. The brachiopod superfamily Stenoscismatacea. Smithson. Misc. Collect. 148(2):1192.Google Scholar
Grant, R. E. 1971. Taxonomy and autoecology of two Arctic Permian rhynchonellid brachiopods. Smithson. Contrib. Paleobiol. 3:313335.Google Scholar
Hancock, A. 1859. On the organization of the Brachiopoda. Philos. Trans. R. Soc. 148:791869.Google Scholar
Haro, A. de 1963. Estructura y anatomia comparadas de las gonadas y pedúnculo de los Braquiopodos testicardinos. Publ. Inst. Biol. apl. Barcelona. 35:97117.Google Scholar
Jux, U., and Strauch, F. 1966. Die Mitteldevonische Brachiopodengattung Uncites De France 1825. Paläontographica A. 125:176222.Google Scholar
Maxwell, W. G. H. 1954. Strophalosia in the Permian of Queensland. J. Paleontol. 28:533559.Google Scholar
Richardson, J. R. 1973. Studies on Australian Cainozoic brachiopods. The subfamily Bouchardiinae (Terebratellidae). Proc. R. Soc. Victoria. 86:111116.Google Scholar
Richardson, J. R. 1975a. Loop development and the classification of terebratellacean brachiopods. Palaeontology. 18:285314.Google Scholar
Richardson, J. R. 1975b. Growth patterns of the loop and cardinalia in five Recent terebratellid species. Proc. R. Soc. Victoria. 87:197205.Google Scholar
Rudwick, M. J. S. 1961. ‘Quick’ and ‘catch’ adductor muscles in brachiopods. Nature. 191:1021.Google Scholar
Rudwick, M. J. S. 1970. Living and fossil brachiopods. 199 pp. Hutchinson; London.Google Scholar
Thomson, J. A. 1915. Brachiopod genera: The position of shells with magaselliform loops, and of shells with bouchardiform beak characters. Trans. N. Z. Inst. 47:392403.Google Scholar
Ulrich, E. O., and Cooper, G. A. 1936. New Silurian brachiopods of the family Triplesiidae. J. Paleontol. 10:331347.Google Scholar
Verco, J. C. 1910. The brachiopods of South Australia. Trans. R. Soc. South Aust. 34:8999.Google Scholar
Yakowlew, N. 1908. Die Anheftung der Brachiopoden als Grundlage der Gattungen und Arten. Mém. Com. géol. St. Pétersb. (n.s.) 48:132. (German resumé).Google Scholar