Stromboidea

• Aporrhaidae
  • Aporrhais
    • Aporrhais clarendonensis Wrigley, 1938

Original description of Aporrhais sowerbii clarendonensis by Wrigley, 1938:

• The spire is short and broad, with a finely nodular carina on the shoulder of the last whorl, which continues into the terminal rear point of the expanded lip. Some specimens show a very slight, plain, second ridge in front of the main carina. All these are small by comparison with later forms. A few specimens are known from the London Clay of Southampton Well (dug about 1845) with the last whorl devoid of a ridge, although one is developed on the lip expansion.

Locus typicus: Clarendon near Salisbury, Wiltshire County, South West Region, England, UK

Stratum typicum: Lower London Clay of Clarendon, Ypresian, lower Eocene

Aporrhais sowerbii forma clarendonensis Wrigley, 1938; London Clay, Ypresian, lower Eocene; Clarendon near Salisbury, Wiltshire County, South West Region, England, UK; Coll. BM(NH) no. G.62823; Copyright BM(NH)

Aporrhais sowerbii forma clarendonensis Wrigley, 1938; London Clay, Ypresian, lower Eocene; Clarendon near Salisbury, Wiltshire County, South West Region, England, UK; Coll. BM(NH) no. G.62824; Copyright BM(NH)

Aporrhais sowerbii forma clarendonensis Wrigley, 1938; Paratype; London Clay, Ypresian, lower Eocene; Bognor Regis, West Sussex County, South England Region, England, UK; Coll. BM(NH) no. G.66067; Copyright BM(NH)

Aporrhais sowerbii forma clarendonensis Wrigley, 1938; London Clay, Ypresian, lower Eocene; Southampton, Hampshire County, South East England Region, England, UK; Coll. BM(NH) no. 71375; Copyright BM(NH)

Aporrhais sowerbyi Wrigley, 1938; London Clay, Ypresian, lower Eocene; Clarendon near Salisbury, Wiltshire County, South West Region, England, UK; Coll. Naturhistorisches Museum Wien no. 1865.XI.162

Aporrhais sowerbyi Wrigley, 1938; London Clay, Ypresian, lower Eocene; Clarendon near Salisbury, Wiltshire County, South West Region, England, UK; Coll. Naturhistorisches Museum Wien no. 1865.XI.162

Aporrhais clarendonensis Wrigley, 1938; London Clay, Ypresian, lower Eocene; Wiltshire County, County, South West Region, England, UK; 15 mm; Coll. Edward Gange; Photo & Copyright Alan Morton

Aporrhais clarendonensis Wrigley, 1938; London Clay, Ypresian, lower Eocene; Hampshire County, South East England Region, England, UK; 4,5 mm; Coll. Edward Gange; Photo & Copyright Alan Morton

References:

• Jeffery, P.& Tracey, S. 1997. The Early Eocene London Clay Formation mollusc fauna of the former Bursledon Brickworks, Lower Swanwick, Hampshire; Tertiary Research 17(3+4), 75-137.
• Wrigley, 1938

Internet:

• A Collection of Eocene and Oligocene Fossils compiled by Alan Morton