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No.12 (1969/04) >

 
Title :Paleontological Notes on Growth Series and Sexual Dimorphism of Some Mississippian Ostracodes from Utah, U.S.A.
Authors :Nohara, Tomohide
Authors alternative :野原, 友秀
Issue Date :Apr-1969
Abstract :Several species of ostracodes such as Perprimitia aff. P. tenera, Bythocypris aff. B. disparilis, Monoceratina sp., Healdia cf. H. ovoidea, Aechminella aff. trispinosa, Amphissites rugosus, and Perprimitia (?) morganensis n. sp. were studied from point of growth series and sexual dimorphism. Amphissites rugosus, Monoceratina sp., and Healdia cf. H. ovoidea each show four, three, and two possible molt stages of instars. However, Aechminella aff. trispinosa, Perprimitia? aff. P. tenera, and Bythocypris aff. B. disparilis do not show clear molt stages. The study indicates that Perprimitia (?) morganensis n. sp. is sexually dimorphic.
Type Local :紀要論文
Publisher :琉球大学理工学部
URI :http://hdl.handle.net/20.500.12000/23587
Citation :琉球大学理工学部紀要. 理学編 = Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences no.12 p.61 -65
Appears in Collections:No.12 (1969/04)

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