1. FIRST RECORD OF HARLANJOHNSONELLA ANNULATA ELLIOTT IN GRANIER & DELOFFRE, 1993, NON 1968, A TRIPLOPORELLACEAN ALGA IN UPPER BARREMIAN-LOWERMOST BEDOULIAN STRATA OF LEBANON
- Author
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Maksoud, Sibelle, Granier, Bruno, Dany Azar,, Maksoud, Sibelle, Université de Brest (UBO), Department of Ecology and Evolutionary Biology, University of Kansas [Lawrence] (KU), Lebanese University [Beirut] (LU), We would like to thank the CNRSL (National Council for Scientific Research - Lebanon) and the AUF (University Agency of the Francophony) for their financial support. This research is a contribution to the project N° 30959NJ - PHC CEDRE 2014, and supported by of the research project of Hubert - Curien Partnership program (PHC) CEDRE, implemented in Lebanon and France by the Ministry of Foreign Affairs ( Ministère des Affaires étra ngères, MAE) and the Ministry of Higher Education and Research ( Ministère de l'Enseignement Supérieur et de la Recherche, MESR). This paper is a contribution of the team project 'Biodiversity: Origin, Structure, Evolution and Geology' led by Dany Azar at t he Lebanese University.
- Subjects
Bedoulian ,Falaise de Blanche ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Cretaceous ,Jezzinian regional stage ,[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy ,Triploporellacean alga ,Anti-Lebanon ,[SDU.STU] Sciences of the Universe [physics]/Earth Sciences ,[SDU.STU.ST] Sciences of the Universe [physics]/Earth Sciences/Stratigraphy ,[SDU.OTHER] Sciences of the Universe [physics]/Other ,[SDU.STU.PG] Sciences of the Universe [physics]/Earth Sciences/Paleontology ,Dasycladales ,[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology ,[SDU.OTHER]Sciences of the Universe [physics]/Other ,Barremian - Abstract
International audience; Harlanjohnsonella annulata Elliott in Granier & Deloffre, 1993, non 1968, was originally described from Cenomanian strata in Serbia. Herein, we report its first occurrence outside the type area, i.e., in Lebanon, and in older strata, i.e., earliest Bedoulian or Late Barremian in age. Our specimens are compared with topotypic material. The species was recently revised by Radoičić & Schlagintweit who transferred it to the genus Dissocladella. However, we never observed any secondary branch and therefore we cannot agree with their interpretation. In addition on the basis of calculations and comparisons of the volume ratio of several species, either fossil (Montiella elitzae and Triploporella steinmannii) and living (Dasycladus vermicularis and Neomeris dumetosa) Dasycladalean algae, we assume that Harlanjohnsonella annulata was more probably an endosporate form rather than a cladosporate form.
- Published
- 2014