orthoceratite


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orthoceratite

[‚ȯr·thə′ser·ə‚tīt]
(invertebrate zoology)
Any nautiloid belonging to the genus Orthoceras, characterized by the presence of three longitudinal furrows on the body chamber.
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References in periodicals archive ?
The Kundan Orthoceratite limestone has about 5 cm thick beds separated by leaf-thin clayey lamina.
The dominant facies is a bedded limestone, the upper part of which (occasionally all of which) is known as the Orthoceratite Limestone, lithologically corresponding to limestones in the South China Plate (Lindstrom et al.
Stenoblepharum includes the earliest tropidocoryphids (and Proetoidea) from Baltoscandia, being present in geschiebe of Red Orthoceratite Limestone, of late Darriwilian age, from northern Germany (Popp & Schoning 2006).