Fig. 3 in Conulariids from the Lower Ordovician of the southern Montagne Noire, France

Fig. 3. Conulariid scyphozoan Archaeoconularia cf. insignis (Barrande, 1867), Landeyran Formation, upper Floian, Lower Ordovician; southern Montagne Noire, France. Specimens oriented with the apertural end directed toward the top of the page; arrows in A1 and B1 point to a facial midline. A. The two exposed faces of the part of the most complete specimen (MNHN.F.A71851a), which terminates in a crumpled schott (A1). Detail of the part, arrow pointing to the crumpled terminal schott (A2). B. The counterpart of the specimen in A (MNHN.F.A71851b) (B1). Detail of the apertural region of the counterpart, showing the fine ornament including some of the most clearly defined nodes (arrows) (B2).