Remarks on Bačinella Radoičić, 1959 (type species B. irregularis) and its representatives

摘要: Bacinella irregularis was described by Radoicic (Bull Serv Geol Geophys Rep Serbie 17:87–92, 1959) as an alga incertae sedis. Based on material from the Lower Aptian of western Maestrat Basin (Spain), genus with its various species is revised; emended diagnosis given well a detailed description. interpreted organism that excavated complex branching galleries into biogenic hard substrates, e.g., crusts Lithocodiumaggregatum Elliott (such in holotype specimen B. irregularis). Its morphology and boring pattern comparable to modern filamentous-septate euendolithic green algae class Ulvophyceae. These forms, however, are microfilamentous (microborers) whereas has larger filament diameter. Nearly all “B. irregularis” occurrences reported literature do not belong this taxon, but represent irregular vesicular (“bacinellid” fabrics = auct. non) display some resemblances microbial mats.