FIGURE 19 in The Columbellidae (Gastropoda, Buccinoidea) in the Miocene Paratethys Sea—striking diversity of a negelected group

FIGURE 19. Principal Component Analysis (PCA) based on shell ratios and apical angle (SL/MD, AL/AW, SL/LWH, LWH/ AH and AA). A. Scatter of all measured specimens. B. Cluster defining genus groups. Abbreviations: age: Astyris? agenta Harzhauser & Kowalke, 2002, aus: Auingeria austriaca (Hoernes & Auinger, 1880), bel: Auingeria bellardii (Hoernes, 1852), bit: "Mitrella" bittneri (Hoernes & Auinger, 1880), bro: Thiarella bronni (Mayer, 1869), buc: Defensina bucciniformis (Hoernes & Auinger, 1880), com: Mitrella complanata (Sacco, 1890), con: Orthurella convexula Sacco, 1904, dac: Mitrella dacica nov. sp., dem: Mitrella demaintenonae nov. sp., duj: Martaia dujardini (Hoernes & Auinger, 1880), elo: Mitrella elongatissima nov. sp., emb: Bellacolumbella embryonalis (Boettger, 1902), fal: Mitrella fallax (Hoernes & Auinger, 1880), gue: Costoanachis guembeli (Hoernes & Auinger, 1880), gru: Auingeria grussbachensis (Csepreghy-Meznerics, 1969), hau: Scabrella haueri (Hoernes & Auinger, 1880), hil: Mitrella hilberi (Cossmann, 1901), kar: Bellacolumbella karreri (Hoernes & Auinger 1880), kat: Bellacolumbella katharinae (Hoernes & Auinger, 1880), kor: Graphicomassa korytnicensis (Bałuk, 1995), lat: Costoanachis latecostata (Boettger, 1902), may: Columbella mayeri Hoernes, 1856, mor: Orthurella moravica (Hoernes & Auinger, 1880), pet: Mitrella petersi (Hilber, 1879), pol: Graphicomassa polonica (Pusch, 1837), sar: Astyris sarmatica (Kojumdgieva, 1969), sop: Clinurella sophiae Boettger, 1902, sph: Zafrona sphaerocorrugata nov. sp., vie: Mitrella viennensis nov. sp., zit: Martaia zitteli (Hoernes & Auinger, 1880).