First report of a trilobite in the carboniferous of eastern pontides, NE Turkey

KANDEMİR, Raif; LEROSEY, Rudy AUBRIL

First report of a trilobite in the carboniferous of eastern pontides, NE Turkey

Raif KANDEMİR, (Gümüşhane Üniversitesi, Jeoloji Mühendisliği Bölümü, Gümüşhane, Türkiye)

Rudy AUBRIL LEROSEY (Forschungsinstitut Senckenberg Senckenberganlage 25, D-60325 Frankfurt, Germany)

Turkish Journal of Earth Sciences

3 0

Yıl: 2011 Cilt: 20 Sayı: 2 Sayfa Aralığı: 179 - 183 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022

First report of a trilobite in the carboniferous of eastern pontides, NE Turkey

Öz:

Doğu Pontidler’in Mesozoyik öncesi temelini oluşturan Permo−Karbonifer yaşlı çökel kayaları Çatalçeşme ve Hardişi formasyonlarından oluşur. Çatalçeşme Formasyonu fusulinidler, mercanlar, gastropodlar, brakyopodlar, bryozoalar, algler, konodontlar ve bitki fosillerinden oluşan oldukça zengin bir topluluğu içerir. Fakat bugüne kadar bu formasyondaki trilobit varlığı bilinmemekteydi. Bu çalışmada Çatalçeşme Formasyonu’nun üst seviyelerine yakın koyu gri renkli bir kireçtaşı tabakasında, sadece kuyruk kısmıyla temsil edilen, tek bir trilobit örneği bulunmuştur. Trilobitler, Geç Pensilvaniyen süresince bentik denizel toplulukların nadir bir öğesini oluştururlar ve bu örnek Türkiye’de bu yaştaki ilk trilobit bulgusudur. Çatalçeşme Formasyonu’ndan elde edilen örneğin morfolojik özellikleri, özellikle aksiyal halkalar ve plevral kotların sayısı ve iyi-belirlenmiş sınırı, olasılıkla Ditomopyge Newell, 1931 cinsine ait (Ditomopyginae) tanımlanmamış bir tür olduğu düşünülmektedir. Örnek ayrıca, eksenin arka bölümünün bükülmüş olması ve bazı plevral kotların sağ bölümde kısalması veya sol bölümde birleşmelerini gösterir. Bu anormallikler, onarılmış yaraları veya muhtemelen, organizmanın gelişmesi sırasındaki işlev bozukluklarının sonuçlarını temsil edebilir.

Anahtar Kelime:

Konular: Jeoloji

Doğu pontid karbonifer’indeki ilk trilobit bulgusu, KD Türkiye

Öz:

The pre-Mesozoic basement of the Eastern Pontides consists of a Permo–Carboniferous sedimentary sequence including the Çatalçeşme and Hardişi formations. Th e Çatalçeşme Formation has yielded rich assemblages of fusulinids, corals, gastropods, brachiopods, bryozoans, algae, conodonts and plants. Hitherto trilobites were unknown from this formation; here we report the discovery of a pygidium from a dark grey limestone bed near the top. Trilobites are a minor component of benthic marine communities during the Late Pennsylvanian, and to our knowledge, the discovery of this pygidium constitutes the fi rst report of their occurrence in deposits of this age in Turkey. The morphological characteristics of the specimen, especially the number of axial rings and pleural ribs and the well-defi ned border (Owens 1983), suggest that it probably belongs to an undescribed species of Ditomopyge Newell, 1931 (Ditomopyginae). It also exhibits a distortion of the posterior part of the axis, and a shortening (right side) or a fusion (left side) of some pleural ribs, which is tentatively interpreted as repaired injuries or the results of a developmental dysfunction.

Anahtar Kelime:

Konular: Jeoloji

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	KANDEMİR R, LEROSEY R (2011). First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. , 179 - 183.
Chicago	KANDEMİR Raif,LEROSEY Rudy AUBRIL First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. (2011): 179 - 183.
MLA	KANDEMİR Raif,LEROSEY Rudy AUBRIL First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. , 2011, ss.179 - 183.
AMA	KANDEMİR R,LEROSEY R First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. . 2011; 179 - 183.
Vancouver	KANDEMİR R,LEROSEY R First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. . 2011; 179 - 183.
IEEE	KANDEMİR R,LEROSEY R "First report of a trilobite in the carboniferous of eastern pontides, NE Turkey." , ss.179 - 183, 2011.
ISNAD	KANDEMİR, Raif - LEROSEY, Rudy AUBRIL. "First report of a trilobite in the carboniferous of eastern pontides, NE Turkey". (2011), 179-183.

APA	KANDEMİR R, LEROSEY R (2011). First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. Turkish Journal of Earth Sciences, 20(2), 179 - 183.
Chicago	KANDEMİR Raif,LEROSEY Rudy AUBRIL First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. Turkish Journal of Earth Sciences 20, no.2 (2011): 179 - 183.
MLA	KANDEMİR Raif,LEROSEY Rudy AUBRIL First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. Turkish Journal of Earth Sciences, vol.20, no.2, 2011, ss.179 - 183.
AMA	KANDEMİR R,LEROSEY R First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. Turkish Journal of Earth Sciences. 2011; 20(2): 179 - 183.
Vancouver	KANDEMİR R,LEROSEY R First report of a trilobite in the carboniferous of eastern pontides, NE Turkey. Turkish Journal of Earth Sciences. 2011; 20(2): 179 - 183.
IEEE	KANDEMİR R,LEROSEY R "First report of a trilobite in the carboniferous of eastern pontides, NE Turkey." Turkish Journal of Earth Sciences, 20, ss.179 - 183, 2011.
ISNAD	KANDEMİR, Raif - LEROSEY, Rudy AUBRIL. "First report of a trilobite in the carboniferous of eastern pontides, NE Turkey". Turkish Journal of Earth Sciences 20/2 (2011), 179-183.