Journal of Paleontology; May 2008; v. 82; no. 3;
p. 612-620; DOI: 10.1666/06-081.1
© 2008 Paleontological Society
The Conodont Genus Teridontus (Miller, 1980) from the Early Ordovician of Montagne Noire, France
Enrico Serpagli1,
Annalisa Ferretti2,
Robert S. Nicoll3 and
Paolo Serventi1
1 Dipartimento del Museo di Paleobiologia e dell'Orto Botanico, Università degli Studi di Modena e Reggio Emilia, Via Università 4, 41100 Modena, Italy, <serpagli@unimore.it>, <paolo.serventi@unimore.it>
2 Dipartimento di Scienze della Terra, Università degli Studi di Modena e Reggio Emilia, L.go S. Eufemia 19, 41100 Modena, Italy <ferretti@unimore.it>
3 Department of Earth and Marine Sciences, Australian National University, Canberra, Australia 0200, <bnicoll@goldweb.com.au>
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INTRODUCTION
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THE CONODONT genus Teridontus was introduced in 1980 by Miller and was based on the Late Cambrian species Oneotodus nakamurai Nogami, 1967 from the Yencho Member of the Fengshan Fm. of northeast China. Teridontus was later reported from either the Upper Cambrian or Lower Ordovician (Landing et al., 1980; Miller, 1980; Landing and Barnes, 1981; Landing, 1983; An et al., 1983, 1985; Ni et al., 1983; Peng et al., 1983; Nowlan, 1985; Landing et al., 1986; Bagnoli et al., 1987; An, 1987; Buggisch and Repetski, 1987; Pohler and Orchard, 1990; An and Zheng, 1990; Seo and Ethington, 1993; Wang, 1993; Lehnert, 1994; Nicoll, 1994; Seo et al., 1994; Ji and Barnes, 1994; Taylor et al., 1996; Lehnert et al., 1997; Jia, 2000; Dubinina, 2000; Pyle and Barnes, 2002; Zeballo et al., 2005) sediments in numerous localities around the world, but a unanimous interpretation of the composition of the Teridontus apparatus organization was far from accepted.
In 2000 we were invited by J. J. Álvaro, E. P. Villas and D. Vizcaïno to join a working group on the stratigraphy of the Early Paleozoic of southern Montagne Noire (France). Our specific objective was the study of conodont faunas emerging from limestone intercalations in the Ordovician successions. Several samples from the Val d'Homs Formation collected in Sallèles-Caberdès, from Munio Formation, collected in Combes de Barroubio (St. Jean de Minervois) and, chiefly, from the St. Chinian Formation collected in La Regagnade Valley (St. Martial), produced an amazingly rich conodont fauna attributed to the P. deltifer Zone and, more precisely, to the lower part of the P. deltifer deltifer Subzone (Álvaro et al., 2005; Serpagli et . . . [Full Text of this Article]
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THE GENUS TERIDONTUS
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SYSTEMATIC PALEONTOLOGY
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Genus TERIDONTUS Miller, 1980
Type species
Emended diagnosis
TERIDONTUS GALLICUS new species Figures 1, 3–5
Diagnosis
Etymology
Type
Type locality and horizon
Other material examined
Discussion
Occurrence
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