Annales Societatis Geologorum Poloniae (2012), vol. 82: 291–330. PRO LIFIC DE VEL OP MENT OF PACHYTHECALIINES IN LATE BARREMIAN, BULGARI A: CORAL TAXON OMY AND SED I MEN TARY EN VI RON MENT Bo gus³aw KO£ODZIEJ1, Marin IVANOV2 & Vyara IDAKIEVA2 1 Insti tute of Geolog i cal Science s, Jagiellonian Uni ver sity, ul. Oleandry 2a, 30-063 Kraków, Poland; e-mail:
[email protected] 2 Depart ment of Ge ology, Pale on tol ogy and Fos sil Fuels , Sofi a Univer sity ‘St. Kliment Ohridski’, 15 Tzar Osvoboditel Bd., 1000 Sofi a, Bul garia; e-mail:
[email protected] a.bg;
[email protected] a.bg Ko³odziej, B., Ivanov, M. & Idakieva, V., 2012. Prolific de vel op ment of pachythecaliines in Late Barremian, Bul garia: coral tax on omy and sed i men tary en vi ron ment. Annales Societatis Geologorum Poloniae, 82: 291–330. Ab stract: Di ver si fied and abun dant cor als of the suborder Pachythecaliina (or der Hexanthiniaria) are de scribed from Upper Barremian, biostromal reefs of the Emen Forma tion, Lovech Urgonian Group, north cen tral Bul garia. The cor als are mostly of the phaceloid growth form and rep re sent 14 spe cies (six new), 12 gen era (three new), be long ing to five fami lies. Pachythecaliines oc cur with the small, monopleurid cy lin dri cal rudist Mathesia darderi. The rudists frequently are densely clus tered, occur between coral branches or are in contact with them. Other cor als, with the ex cep tion of the phaceloid Calamophylliopsis, and other rudists, are rare.