caa a22 4500 388017651 CHVBK 20180307124915.0 cr unu---uuuuu 161130e199811 xx s 000 0 eng 10.1017/S0022336000027347 doi S0022336000027347 pii (NATIONALLICENCE)cambridge-10.1017/S0022336000027347 Lower Devonian (Emsian) rugosa of the Izarne Formation, Montagne Noire, France [Elektronische Daten] [Alan E. H. Pedder, Raimund Feist] An account of the systematics, biostratigraphy, ecological setting and the biogeographic implications of rugose corals from olistoliths of the Cabrières area is given. Corals of the lower member of the Izarne Formation are dated by conodonts as gronbergi Zone age, and include Lythophyllum sp. indet., Calceola sandalina (Linné), Tryplasma sp. A, Breviphrentis roharti Pedder new species, B. exigua Pedder new species, and Aqishaphyllum sp. A. Corals from the middle member of the formation include Frechocystis pertinax Pedder new genus and species, Calceola sp. undet., Rhizophyllum sp. aff. R. ukalundense Hill and Jell, Tryplasma enorme Pedder new species, Tryplasma sp. A, Breviphrentis sp. A, Platysmatophyllum halleri Pedder new genus and species, Pseudochonophyllum sentum Pedder new species, and Izarneophyllum barroisi (Frech) new genus. No age significant conodont has been recovered from the middle member. However, scutelluid trilobites, which, together with other trilobites, evidently used the underside of Izarne corals for shelter during molting, provide correlation with conodont sequences in the nappe domain to the north and southwest of Cabrières. From this line of evidence, the middle Izarne coral fauna is deduced to be nothoperbonus Zone age. The association of a variety of benthic trilobites, all with large eyes, provides evidence of a photic zone environment for the middle Izarne corals. Rugose corals from the Izarne Formation belong to the Old World Realm and have nothing in common with similar age Rugosa of the Eastern Americas Realm. This implies that the dissolution of the boundary between these realms, which occurred in the Middle Devonian, did not begin before latest Emsian time. Copyright © The Paleontological Society Pedder Alan E. H. Geological Survey of Canada, 3303 33rd Street NW, Calgary, Alberta, Canada, T2L 2A7 aut Feist Raimund Laboratoire de Paléontologie, Université de Montpellier II, Place E. Bataillon, F-34095 Montpellier Cedex 05, France aut Journal of Paleontology Cambridge University Press 72/6(1998-11), 967-991 0022-3360 72:6<967 1998 72 JPA https://doi.org/10.1017/S0022336000027347 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022336000027347 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pedder Alan E. H. Geological Survey of Canada, 3303 33rd Street NW, Calgary, Alberta, Canada, T2L 2A7 aut NATIONALLICENCE 700 1- Feist Raimund Laboratoire de Paléontologie, Université de Montpellier II, Place E. Bataillon, F-34095 Montpellier Cedex 05, France aut NATIONALLICENCE 773 0- Journal of Paleontology Cambridge University Press 72/6(1998-11), 967-991 0022-3360 72:6<967 1998 72 JPA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge