Gastropoda Stromboidea | People / Chris Newman

People / Chris Newman

Chris Newman

Three species of Hippochrenes are found within Great Britain, according to Wrigley’s paper ‘English Eocene and Oligocene Strombidae and Aporrhaidae’ published in 1938. [Proceedings of the Malacological Society, London].

Hippochrenes amplus being found in lower and middle Barton Beds at Barton-on-sea, Hampshire and at the middle Bartons at Alum Bay, Isle of Wight. The Lower Lutetian at Brackelsham bay and Selsey West Sussex. Hippochrenes oligocenicus from the middle Headons at Brokenkenhurst, Hampshire and at Whitecliff Bay Isle of Wight. Hippochrenes incertus from the London Clay at several localities within London. Known from less than twenty imperfect specimens. He also refers to an unknown species of Hippochrenes sp. from the upper Auversian Bracklesham beds of Huntingbridge [New Forest], known only from fragments.

Our collecting has established the presence of two further species from the English Eocene: Hippochrenes baylei and Hippochrenes fissura both appear restricted to the lower Earnley formation of Bracklesham Bay. Wrigley postulates in his paper that the specimens from this locality may be H. baylei, as opposed to H. amplus, but discounts this largely due to the poor state of preservation. H. fissura, has, as far as I am aware, not been recorded previously. Due to the very poor preservation and extremely limited collecting opportunities afforded this is not unsurprising. Currently both species are only known from bed E3.

In addition we have collected fragments of a Hippochrenes sp. from the lower Bartonian of Studley Wood, Elmore member and the tip of a spire of a Hippochrenes sp. from Stubbington [Hill Head], Lutetian.

from his collection:

Hippochrenes amplus (Solander in Brander, 1766); Bed B, Bartonian, Barton Group (formerly Barton Beds), upper Eocene; Sea cliffs, Barton on Sea, Hampshire County, South East Region, England; 147 mm \\Photo & Coll. Chris Newman no. BA 019

Hippochrenes amplus (Solander in Brander, 1766); juvenile; Bed E, Bartonian, Barton Group (formerly Barton Beds), upper Eocene; Sea cliffs, Barton on Sea, Hampshire County, South East Region, England; 55 mm \\Photo & Coll. Chris Newman no. BA 434

Hippochrenes amplus (Solander in Brander, 1766); Bracklesham Group (formerly Bracklesham Beds), middle Eocene; Bracklesham Bay, West Sussex County, South East Region, England; 110 mm \\Coll. Chris Newman; Photo & Copyright Alan Morton

Hippochrenes baylei (Deshayes, 1865); Bed E3, Bartonian, Eocene; Bracklesham Bay, West Sussex County, South East Region, England; 110 mm
Photo & Coll. Chris Newman no. BR 033

Hippochrenes baylei (Deshayes, 1865); Bed E3, Bartonian, Eocene; Bracklesham Bay, West Sussex County, South East Region, England; 118 mm; Photo & Coll. Chris Newman

Hippochrenes baylei (Deshayes, 1865), Bed E3, Bartonian, Eocene; Bracklesham Bay, West Sussex County, South East Region, England; 82 mm; Photo & Coll. Chris Newman no. BR 259

Hippochrenes baylei (Deshayes, 1865), Bed E3, Bartonian, Eocene; Bracklesham Bay, West Sussex County, South East Region, England; Photo & Coll. Chris Newman

Hippochrenes fissura (Coquebert & Brongniart, 1793); Bracklesham Group (formerly Bracklesham Beds), middle Eocene; Bracklesham Bay, West Sussex County, South East Region, England; 54 mm
Photo & Coll. Chris Newman no. BR 419

Hippochrenes sp.; Bartonian, Barton Group (formerly Barton Beds), upper Eocene; Alum Bay, Isle of Wight, Isle of Wight County, South East Region, England ; 194mm; Photo & Coll. Chris Newman no. BR 1194

Hippochrenes sp.; Bartonian, Barton Group (formerly Barton Beds), upper Eocene; Studley Wood, New Forest, Southampton, Hampshire County, South East Region, England; 604mm; Photo & Coll. Chris Newman no. BR 185

Lobatus williamsi (Olsson & Petit, 1964); Plio/Pleistocene; Florida, USA; Coll. Chris Newman

Pseudanchura carinata (Mantell, 1822); Bed II, Lower Gault, middle Albian, lower Cretaceous; 53 mm; Coll. Chris Newman