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Paläontologische Zeitschrift

, 83:467 | Cite as

Noriphyllia, a new Tethyan Late Triassic coral genus (Scleractinia)

  • Ewa Roniewicz
  • George D. StanleyJr.
Research Paper

Abstract

Noriphyllia gen. n. is a distinctive coral representing the Coryphylliidae, a group of Late Triassic scleractinian corals. Coral faunas of this age are poorly known. The new coral is distinguished from related corals belonging to the reimaniphylliids by key features of septal microstructure as discerned in thin sections. This microstructure consists of a straight/wavy midseptal zone and lateral septal stereome organized into thin fascicles of fibres, producing a fine and sharp micromorphology of the septal sides. The solitary genus Noriphyllia gen. n. contains two Early Norian species: N. anatoliensis sp. n. chosen as the type species and N.dachsteinae sp. n., and a Carnian species referred to as N. monotutoensis sp. n. The new genus is widely distributed in the Late Triassic, Early Norian reef facies of the Tethys region (Northern Calcareous Alps, Austria; Taurus Mountains, Turkey) and it also occurs in the Carnian of Timor. Noriphyllia gen. n. is unique and details of its microstructural features add new understanding to the composition of both Late Carnian and Early Norian corals.

Keywords

Corals Scleractinia Triassic Carnian Early Norian Alps Turkey Timor-Leste 

Abbreviations

d

Corallum diameter

f

Length of calicular fossa

h

Corallum height

S

Number of septa

S1Sn

Septa of succeeding size orders

Sd

Septal density: number of septa per mm measured directly at the calicular rim

Institutional abbreviations

GBA

Geologische Bundesanstalt Wien, Austria

UAu

Department of Geology, University of Auckland, New Zealand

UMIP

The University of Montana, USA

ZPAL

Institute of Paleobiology, Polish Academy of Sciences, Poland

Kurzfassung

Noriphyllia gen. n. ist eine kennzeichnende Koralle der Coryphylliidae, einer Gruppe der Scleractinia der Obertrias. Korallenfaunen dieses Alters sind nur wenig bekannt. Die neue Koralle unterscheidet sich von verwandten Formen der Reimaniphylliden durch charakteristische Mikrostrukturen der Septen, wie sie in Dünnschliffen erkennbar werden. Diese Mikrostruktur besteht aus einer gerade oder welligen Mittelseptalzone und einen Seitenskelett, der aus dünnen Faser-Bündeln eine raue Mikromorphologie auf den Septenseiten bildet. Die solitäre Gattung Noriphyllia gen. n. beinhaltet zwei unternorische Arten: N. anatoliensis sp. n., die als Typusart gewählt wurde, und N. dachsteinae sp. n., sowie die karnische Art N. monotutoensis sp. n. Die neue Gattung ist weit verbreitet in der Riff-Fazies der Obertrias im Tethysraum, so etwa im unteren Norium der Nördliche Kalkalpen (Österreich) und des Taurusgebirges (Türkei) sowie im Karnium von Timor. Noriphyllia gen. n. ist einzigartig und Details ihrer mikrostrukturellen Merkmale liefern neue Beiträge zum Verständnis des Aufbaues oberkarnischer und unternorischer Korallen.

Schlüsselwörter

Korallen Scleractinia Trias Karnium Frühes Norium Alpen Türkei Timor-Leste 

Notes

Acknowledgments

We thank the University of Auckland Museum and Professor Jack A. Grant-Mackie for providing material from Timor. Thanks are due Professor Jean-Pierre Cuif for offering the material from Anatolia presented herein to the collection of the Institute of Paleobiology, Warsaw; and to Dr Peter Riedel for the part of the material that is housed in the Paleontology Centre of the University of Montana, Missoula. The material from the Alps, belonging to the Geologische Bundesanstalt Wien, was kindly offered for elaboration by Harald Lobitzer. Thanks are due to Zbigniew Strąk for his assistance in preparing the specimens, and to Grażyna and Marian Dziwiński for photography (all from the Institute of Palebiology, Warsaw). We further thank Dr. Josef Michalik (Bratislava) and Professor Antonio Russo (Modena) for reviewing the manuscript, and Dr. Gerhard Mandl (Vienna) for German translation of the Abstract.

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Institute of PaleobiologyPolish Academy of SciencesWarsawPoland
  2. 2.Department of GeosciencesThe University of MontanaMissoulaUSA

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