TURKISH JOURNAL OF EARTH SCIENCES, cilt.19, sa.5, ss.583-612, 2010 (SCI-Expanded, Scopus, TRDizin)
The late Campanian-Maastrichtian transgressive sequences of the southeastern Anatolia (northernmost part of the Arabian platform) and only one Maastrichtian limestone block within the ophiolitic association of the easternmost part of the Taurus Orogenic Belt contain very well-preserved specimens of Dictyoptychus Douville 1905. Study of Turkish specimens and also of those described in the literature reveals considerable ontogenic variability, hence need for revision of the species of the genus erected hitherto. Dictyoptychus leesi (Kuhn 1929), Dictyoptychus paronai (Kuhn 1929), Dictyoptychus persicus (Cox 1934), Dictyoptychus euphratica Karacabey-Oztemur 1979 and Dictyoptychus orontica Karacabey-Oztemur 1979 are accordingly re-interpreted to represent a single species synonymous with Dictyoptychus morgani (Douville 1904a). Despite similarities of the canal structure of the right valve of Dictyoptychus striatus (Douville 1910) with those of Dictyoptychus morgani (Douville 1904a), must remain problematic at present to include in latter species until its very distinctive radial ornamentation and inner margin structure of the right valve is clearly determined.