HANKOICHNUS ICHNOGEN. NOV., A NEW ARTHROPOD (?) TRACE FOSSIL FROM THE CARBONIFEROUS OF THE DONETS BASIN (UKRAINE)

The flyschoid sediments of the Dyakove Group (Serpukhovian–Bashkirian) are exposed in central part Donets Basin (Luhansk and Donetsk regions Ukraine Rostov Region Russia). These important for studying history geological development Dnipro-Donets Downwarp. In addition, contain deposits a number mineral resources (gold, ores silver, lead, zinc, etc.). Nevertheless, paleontological features poorly understood. This paper describes phyllocarid (?) resting trace Hankoichnus bandersnatchi ichnogen ichnosp. nov. from early Bashkirian Group. Trace fossils phyllocarids studied. Diagnosis new ichnogenus: small (Cubichnia), represented by hexagon bounded on both sides ridges (in fact, grooves, since described material is convex hyporelief lower surface shale slab), with one tubercle at end. ichnogenus differs significantly other traces arthropods (e.g., Alph, Arborichnus, Kingella, Rusophycus, Selenichnites, Tonganoxichnus, has greatest similarity Gluckstadtella Savage, 1971. difference between consists absence imprints producer’s limbs Hankoichnus. most likely makers crustaceans. confirmed morphology remains carapace valves these crustaceans, found together black shales complete biota. Phyllocarid relatively common Devonian Carboniferous formed dysaerobic marine environment.