New Araucarian Conifer from the Late Cretaceous (Campanian-Maastrichtian) of Southeastern Turkey

Kvacek J., YILMAZ İ. Ö., Hosgor I., Mendes M. M.

INTERNATIONAL JOURNAL OF PLANT SCIENCES, cilt.180, sa.6, ss.597-606, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 180 Sayı: 6
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1086/703525
  • Dergi Adı: INTERNATIONAL JOURNAL OF PLANT SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.597-606
  • Anahtar Kelimeler: Campanian-Maastrichtian, Bozova Formation, Turkey, Araucaria, Araucariaceae, conifers, Gondwana, CUTICLE MICROMORPHOLOGY, VICTORIA, HOKKAIDO, MIOCENE, LEAVES, ISLAND, FLORA, CONES, RIO
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

A new fossil conifer Araucaria rothwellii J.Kvaek from the Campanian-Maastrichtian marine sediments of the Bozova Formation in southeastern Turkey is described based on leaf compressions and leaf impressions. The new species is characterized by twigs possessing helically arranged broadly lanceolate leaves with attenuate apexes and slightly narrowed bases. Amphistomatic leaves bear stomata arranged in rows surrounded by four to six subsidiary cells; the rows are longitudinal to the leaf margin. Ordinary epidermal cells are elongately rhomboidal with straight or slightly undulate anticlinal walls. Comparisons with already published fossil species and recent species are provided. The new fossil species A. rothwellii is similar in macro- and micromorphology to extant A. bidwillii, which is indigenous to Queensland in northeast Australia.