Ammonoids of the Middle Devonian family Maenioceratidae in the Anti-Atlas of Morocco
Abstract
The ammonoids of the family Maenioceratidae from Givetian sedimentary rocks of the Anti-Atlas (Morocco) are investigated. The study is based on new collections stored in the Museum für Naturkunde, Berlin. The genera Maenioceras Schindewolf, 1933 and Afromaenioceras Göddertz, 1987 are revised; the genus Trimaenioceras is newly described. The species Maenioceras afroterebratum sp. nov., Maenioceras mzerrebense sp. nov., Maenioceras oufranense sp. nov., Maenioceras beckeri sp. nov., Afromaenioceras sulcatostriatum (Bensaïd, 1974), Afromaenioceras hiemale sp. nov., Afromaenioceras bensaidi sp. nov., Afromaenioceras brumale sp. nov., Afromaenioceras crassum (Bensaïd, 1974), Trimaenioceras klugi gen. et sp. nov., Trimaenioceras eculeus gen. et sp. nov., Trimaenioceras fuscina gen. et sp. nov. and Trimaenioceras paucum gen. et sp. nov. are described in detail.
References
Aboussalam Z.S. & Becker R.T. 2001. Prospects for an upper Givetian substage. Mitteilungen aus dem Museum für Naturkunde in Berlin, Geowissenschaftliche Reihe 4: 63–99. https://doi.org/10.1002/mmng.4860040107
Aboussalam Z.S. & Becker R.T. 2004. Givetian stratigraphy and faunas at Tiguisselt (Tata region, Dra Valley, Morocco). Documents de l‘Institut scientifique Rabat 19: 60–63.
Aboussalam Z.S. & Becker R.T. 2011. The global Taghanic Biocrisis (Givetian) in the eastern Anti-Atlas, Morocco. Palaeogeography, Palaeoclimatology, Palaeoecology 304: 136–164. https://doi.org/10.1016/j.palaeo.2010.10.015
Aboussalam Z.S., Becker R.T., Bockwinkel J. & Ebbighausen V. 2004. Givetian biostratigraphy and facies development at Oufrane (Tata region, eastern Dra Valley, Morocco). Documents de l‘Institut scientifique Rabat 19: 53–59.
Becker R.T. & House M.R. 2000. Devonian ammonoid zones and their correlation with established series and stage boundaries. Courier Forschungsinstitut Senckenberg 220: 113–151.
Becker R.T., Aboussalam Z.S., Bockwinkel J., Ebbighausen V., El Hassani A. & Nübel H. 2004. The Givetian and Frasnian at Oued Mzerreb (Tata region, eastern Dra Valley). Documents de l‘Institut scientifique Rabat 19: 29–43.
Becker R.T., El Hassani A., Aboussalam Z.S., Hartenfels S. & Baidder L. 2018. The Devonian and Lower Carboniferous of the eastern Anti-Atlas: introduction to a “cephalopod paradise”. Münstersche Forschungen zur Geologie und Paläontologie 110: 145–157.
Belka Z., Klug C., Kaufmann B., Korn D., Döring S., Feist R. & Wendt J. 1999. Devonian conodont and ammonoid succession of the eastern Tafilalt (Ouidane Chebbi section), Anti-Atlas, Morocco. Acta Geologica Polonica 49: 1–23.
Bensaïd M. 1974. Etude sur des Goniatites à la limite du Dévonien moyen et supérieur, du Sud marocain. Notes du Service géologique du Maroc 36: 82–137.
Bockwinkel J., Becker R.T. & Ebbighausen V. 2013. Late Givetian ammonoids from Hassi Nebech (Tafilalt Basin, Anti-Atlas, southern Morocco). Fossil Record 16: 5–65. https://doi.org/10.1002/mmng.201300001
De Baets K., Klug C. & Korn D. 2011. Devonian pearls and ammonoid-endoparasite co-evolution. Acta Palaeontologica Polonica 56: 159–180. https://doi.org/10.4202/app.2010.0044
Ebbighausen V., Becker R.T., Bockwinkel J. & Aboussalam S.Z. 2007. Givetian (Middle Devonian) brachiopod-goniatite-correlation in the Dra Valley (Anti-Atlas, Morocco) and Bergisch Gladbach-Paffrath Syncline (Rhenish Massif, Germany). Geological Society of London, Special Publications 278: 157–172. https://doi.org/10.1144/SP278.7
Foord A.H. & Crick G.C. 1897. Catalogue of the Fossil Cephalopoda in the British Museum (Natural History), Part III, Containing the Bactritidae and Part of the Suborder Ammonoidea. Printed by order of the Trustees, London.
Frech F. 1897–1902. Lethaea geognostica oder Beschreibung und Abbildung der für die Gebirgs-Formationen bezeichnendsten Versteinerungen. I. Theil. Lethaea palaeozoica. 2. Band.
Frech F. 1902. Über devonische Ammoneen. Beiträge zur Paläontologie Österreich-Ungarns und des Orients 14: 27–112.
Göddertz B. 1987. Devonische Goniatiten aus SW-Algerien und ihre stratigraphische Einordnung in die Conodonten-Abfolge. Palaeontographica, Abteilung A 197: 127–220.
Holzapfel E. 1895. Das Obere Miteldevon (Schichten mit Stringocephalus Burtini und Maeneceras terebratum) im Rheinischen Gebirge. Abhandlungen der Königlich Preussischen geologischen Landesanstalt, Neue Folge 16: 1–460. Available from https://www.biodiversitylibrary.org/page/35736605 [accessed 1 Dec. 2023].
House M.R. & Ziegler W. 1977. The Goniatite and Conodont sequences in the early Upper Devonian at Adorf, Germany. Geologica et Palaeontologica 11: 69–108.
Kayser E. 1872. Studien aus dem Gebiete des rheinischen Devon. III. Die Fauna des Rotheisensteins von Brilon in Westfalen. Zeitschrift der Deutschen Geologischen Gesellschaft 24: 653–690. Available from https://www.biodiversitylibrary.org/page/43674618 [accessed 1 Dec. 2023].
Klug C. & Pohle A. 2018. The eastern Amessoui Syncline – a hotspot for Silurian to Carboniferous cephalopod research. Münstersche Forschungen zur Geologie und Paläontologie 110: 244–260.
Klug C., Korn D., Landman N.H., Tanabe K., De Baets K. & Naglik C. 2015. Describing ammonoid conchs. In: Klug C., Korn D., De Baets K., Kruta I. & Mapes R.H. (eds) Ammonoid Paleobiology: from Macroevolution to Paleogeography, Topics in Geobiology 44: 3–24. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-9630-9_1
Korn D. 2010. A key for the description of Palaeozoic ammonoids. Fossil Record 13: 5–12. https://doi.org/10.1002/mmng.200900008
Korn D. & Bockwinkel J. 2021. The pharciceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea). European Journal of Taxonomy 771: 1–79. https://doi.org/10.5852/ejt.2021.771.1503
Korn D. & Klug C. 2002. Ammoneae Devonicae. Backhuys, Leiden.
Petter G. 1959. Goniatites dévoniennes du Sahara. Publications du Service de la Carte géologique de l‘Algérie (nouvelle série), Paléontologie 2: 1–313.
Phillips J. 1841. Figures and Descriptions of the Palæozoic Fossils of Cornwall, Devon, and West Somerset; Observed in the Course of the Ordnance Geological Survey of that District. Longman, Brown, Green and Longmans, London. https://doi.org/10.5962/t.173086
Roemer F.A. 1852. Beiträge zur geologischen Kenntniss des nordwestlichen Harzgebirges. Zweite Abtheilung. Palaeontographica 3: 69–111. Available from https://www.biodiversitylibrary.org/page/33098115 [accessed 1 Dec. 2023].
Sandberger G. & Sandberger F. 1850–1856. Die Versteinerungen des rheinischen Schichtensystems in Nassau. Mit einer kurzgefassten Geognosie dieses Gebietes und mit steter Berücksichtigung analoger Schichten anderer Länder. Kreidel & Niedner, Wiesbaden. https://doi.org/10.5962/bhl.title.52349
Termier G. & Termier H. 1950. Paléontologie marocaine. II. Invertébrés de l’ère Primaire. Fascicule III. Mollusques. Notes et Mémoires, Service géologique, Protectorat de la République française au Maroc, Direction de la Production industrielle et des Mines, Division des Mines et de la Géologie Republique française Maroc 78: 1–246.
Wedekind R. 1918. Die Genera der Palaeoammonoidea (Goniatiten). Mit Ausschluß der Mimoceratidae, Glyphioceratidae und Prolecanitidae. Palaeontographica 62: 85–184. Available from https://www.biodiversitylibrary.org/page/35931675 [accessed 1 Dec. 2023].
Whidborne G.F. 1890. A monograph of the Devonian fauna of the south of England. Part II. The fauna of the limestones of Lummaton, Wolborough, Chircombe Bridge, and Chudleigh. Palaeontographical Society 43: 47–154. https://doi.org/10.1080/02693445.1890.12028010
Wissner U. & Norris A. 1991. Middle Devonian goniatites from the Dunedin and Besa River formations of northeastern British Columbia. In: Contributions to Canadian Paleontology, Bulletin of the Geological Survey Canada 412: 45–79. https://doi.org/10.4095/132679
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