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Icriodus marieae, a new icriodontid conodont species from the Middle Devonian

2017/02/21 by Thomas J. Suttner, Erika Kido, Andreas W. W. Suttner · 1 citation
Earth and Planetary Sciences · #Evolution and Paleontology Studies #Paleontology and Evolutionary Biology #Paleontology and Stratigraphy of Fossils

paper · pdf · doi:10.1007/s12542-017-0337-9

openalex publication_date 2017/02/21 · openalex created_date 2017/03/03 · openalex updated_date 2026/08/01

Abstract

, is described from pelagic limestone beds of the Carnic Alps (Austria). Specimens are obtained from the upper part of the Valentin Formation (Central Carnic Alps) and range from the latest Eifelian to middle Givetian. Significantly differing from other icriodontid conodonts is that the icriodontan element of the new species develops only three denticles on either lateral denticle row, which are constricted to the central part of the element. The anterior part of the element is free of lateral row denticles and consists of two to four denticles, which have a fan-shaped outline in lateral view. The anterior part as well as the posterior part (consisting of cusp and two to three pre-cusp denticles) is higher than the denticles of the central part of the element. Shape analysis confirms that the parameters chosen for landmarks (element size relation and denticle setting) show little variation between different specimens.

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