Montenegrella? gracilis n. sp., a new calcareous alga (Dasycladales) from the Upper Barremian of Mt. Biokovo (Dinarides Mts., Croatia)
Montegrella? gracilis n.sp.(Dasycladales) is characterized by thick calcareous envelope and narrow central cavity.Bipartite branches are arranged alternately in consecutive whorls.The primaries are visibly differentiated into a thin, tendril-like stalk in the proximal part and a mask club-shaped or ellipsoidal inflated swelling in the distal part.T