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The micromorphic rhynchonelloidean brachiopod Lambdarina from the type Dinantian

Published online by Cambridge University Press:  20 May 2016

Michael G. Bassett
Affiliation:
Department of Geology, National Museum of Wales, Cardiff, CF1 3NP, Wales, U.K.
Catherine Bryant
Affiliation:
Department of Geology, National Museum of Wales, Cardiff, CF1 3NP, Wales, U.K.

Abstract

The cardiarinide brachiopod Lambdarina glaphyra n. sp. from the upper Tournaisian (lower Carboniferous) rocks of Belgium is only the fourth described species in the genus. Ontogeny involves growth from a non-lobate, triangular, brephic stage of shell outline to distinct bilobation through neanic and adult stages, with maturity attained at a length of < 2 mm. Known occurrences of the new species are from within low-energy, mud-dominated proximal peri-reefal facies adjacent to Waulsortian buildups.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

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