Conusella Gründel, 1999b

Gründel, Joachim & Nützel, Alexander, 2013, Evolution and classification of Mesozoic mathildoid gastropods, Acta Palaeontologica Polonica 58 (4), pp. 803-826 : 818

Genus Conusella Gründel, 1999b

Fig. 10A .

Type species: Conusella conica Gründel, 1999 , original designation; late Pliensbachian ; Northeast Germany .

Included species: Conusella conica Gründel, 1999a , Pliensbachian; Conusella? pacifica Bandel, Gründel, and Maxwell, 2000 , late Early– early Middle Jurassic;? Conusella ? sp. sensu Gründel 2003c, Callovian; Conusella torusa Gründel, 2006 , late Bathonian;? Conusella sp. sensu Gründel 2006, late Bathonian; Conusella sp. sensu Gründel and Kaim 2006, Oxfordian.

Emended diagnosis.—Shell conical; protoconch tofanellid, comprising about two whorls; first teleoconch whorl broader than protoconch; whorls broad in relation to height; suture shallow; whorls smooth except straight growth lines; base convex, not demarcated from whorl face; base indistinctly umbilicated; aperture broadly oval.

Stratigraphic and geographic range.—Pliensbachian to Oxfordian; Germany, Poland, France, New Zealand.

Figures

Fig. 10. Type species and examples for Jurassic genera of the family Tofanellidae. A. Conusella conica Gründel, 1999, Grimmen, Germany, late Pliensbachian. Whole specimen (A1) from Gründel (1999: pl. 8: 8); protoconch in apical view (A2) from Gründel (1999: pl. 9: 2). B, C. Reinbergia inflata Gründel, 2007, borehole Kb Rnb Gm 4/66 Reinberg, Germany, late Pliensbachian.B. From Gründel (2007: pl. 7: 6, 7). C. From Gründel (2007:pl. 7: 8).