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Ostracoda source details
Malkin, D.S. (1953). Biostratigraphic study of Miocene Ostracoda of New Jersey, Maryland, and Virginia. Journal of Paleontology. 27(6):761-799.
174315
Malkin, D.S.
1953
Biostratigraphic study of Miocene Ostracoda of New Jersey, Maryland, and Virginia
Journal of Paleontology
27(6):761-799
Publication
Study of Ostracoda in middle and upper Miocene beds of New Jersey, Maryland, and Virginia indicates that the section can be divided into four substages and six faunizones. The Kirkwood formation of New Jersey is correlated with the upper part of the Calvertian substage, the Trachyleberis exanthemata zone. Paleoecological analysis suggests that the sediments were deposited on the continental shelf in shallow warm water. A hinge classification for Ostracoda, including two new terms, crasidont (mixed dentition) and archidont (primitive dentition), is proposed. Summary of the order of development of significant characters in molt stages shows that the mature hinge is the last ontogenetic character to develop. Limits of variation of several species are plotted graphically, showing continuities and discontinuities in fossil populations. Seven new species and one new subspecies of Ostracoda are described.
America, North
Date action by
Campylocythere laevissima (Edwards, 1944) † (new combination reference)
Campylocythere laevissima laevissima (Edwards, 1944) Malkin, 1953 † (new combination reference) Clithrocytheridea diagonalis Malkin, 1953 † accepted as † (original description) Clithrocytheridea virginiensis Malkin, 1953 † accepted as † (original description) Cytherideis echolsae Malkin, 1953 † accepted as † (original description) Cytherura coryelli Malkin, 1953 † (original description) Eocytheropteron yorktownense Malkin, 1953 † accepted as Shattuckocythere yorktownensis (Malkin, 1953) † (original description) Hemicythere schmidtae Malkin, 1953 † accepted as † (original description) Paracytheridea similis Malkin, 1953 † accepted as † (original description) Shattuckocythere similis (Malkin, 1953) † accepted as † (original description) Trachyleberis clarkana (Ulrich & Bassler, 1904) Malkin, 1953 † accepted as Echinocythereis clarkana (Ulrich & Bassler, 1904) † (new combination reference) Trachyleberis clarkana minuscula (Ulrich & Bassler, 1904) Malkin, 1953 † accepted as † (new combination reference) Trachyleberis dorsicornis (Ulrich & Bassler, 1904) Malkin, 1953 † accepted as † (new combination reference) Trachyleberis exanthemata gomillionensis (Howe & Ellis, 1935) † accepted as Actinocythereis gomillionensis (Howe & Ellis, 1935) (new combination reference) Trachyleberis radiata Malkin, 1953 † accepted as † (original description) |