Search the Community

Identified by A. Bannikov, Borissiak Paleontological Institute, Russian Academy of Sciences. According to A. F. Bannikov, the first record of the species Isurichthys in the Polish Carpathian Mountains. From the Jamna Dolna II section, which is an artificial exposure about 2 km south of the original Jamna Dolna exposure. Diagnosis from A. F. Bannikov (2012): "Body slightly elongated, its depth equal to, or greater than, head length. Head 0.34–0.29 of body length. Supraoccipital crest high. Jaw teeth small, uniserial. Vertebrae 28–31 in number, including 16–19 caudal vertebrae; parapophyses present on posterior abdominal vertebrae. Neural spines very slender. Ribs relatively long, absent on haemal spine of first caudal vertebra. Spinous part of dorsal fin with 8–12 spines, soft part with 15–18 widely spaced rays. In anal fin, 15–16 rays also widely spaced. About three anterior interhaemals entering abdominal cavity, their dorsal ends closely positioned. Pectoral fins long, usually reaching origin of anal fin. Pelvic fins moderately long. Caudal fin large, deeply forked. Scales large,cycloid." Line drawing fom Baciu & Bannikov 2004, p. 206: From the Jamna Dolna II section, which is an artificial exposure about 2 km south of the original Jamna Dolna exposure. References: Baciu, Dorin Sorin and Bannikov, Alexandre F. (2004) New stromateoid fishes (Perciformes, Stromateoidei) from the Lower Oligocene of Romania. Journal of Ichthyology 44(3):199-207. Bannikov, Alexandre F. (2012) The first record of the genus Isurichthys (Perciformes, Ariommatidae) in the Lower Oligocene of the Northern Caucasus. Paleontological Journal. Volume 46, pages 171–176. Bannikov, A. F. (2018) A New Genus and Species of Stromateoid Fishes (Perciformes, Stromateoidei) from the Lower Oligocene of the Northern Caucasus. Paleontological Journal 52(6) pages 631-638.