Eucochlis depressa, Yoo, 1994

Yoo, E. K., 1994, Early Carboniferous Gastropoda from the Tamworth Belt, New South Wales, Australia, Records of the Australian Museum 46 (1), pp. 63-120 : 89

Eucochlis depressa n.sp.

PI. l3 figs 7-11

Description. Shell minute, turbiniform, compressed, moderately phaneromphalous. Protoconch of}l;4 whorls with fine growth lines. Teleoconch of 2~ strongly convex whorls with narrowly and evenly spaced sharp collabral cords and weak spiral lirae, collabral cords (about 52 in the last whorl) strong, oblique, prosocline, 40° from axis, suture deep. Aperture almost rectangular, lips thin, outer lip strongly retracted.

Types. Holotype ( F78451 ) and 2 figured paratypes ( F78452 -3). There are 2 unfigured additional specimens ( F78435 ) from the type locality.

Type locality. Approximately 250 m west of Babbinboon Lane, in Swains Gully, 15 km south-west of Somerton, NSW (Locality 25).

Stratigraphic position. In bioclastic limestone, 130 m above the base of the Namoi Formation.

Geographic distribution. Type locality only.

Geological age. Middle Tournaisian.

Etymology. Derived from the Latin depressus meaning low-lying, sunk down; referring to depressed shell.

Remarks. This species is characterised by an exceptionally depressed last whorl with strongly retracted outer lip.