Stromboidea
Original description of Spinigera recurva by Hudleston, 1880:
- Shell rather short, fusiform, and moderately compressed. Apical whorls four, subglobular and plain (fig. 5 h), constituting the opening of a very convex spiral angle; next whorl angular and costated longitudinally; the succeeding whorls of the spire (three or four) have either no longitudinals or at best very faint ones, but are spirally ornamented throughout, and betray a tendency to bicarination which varies in different specimens but is generally well marked. The body-whorl exhibits a third carina, sometimes also visible in the penultimate. The chain of bilateral varices is more or less continuous, but a spine is always sent out on both sides where the varix crosses the lower keel (fig. 5 e). The direction of the spines is irregular, those on the body-whorl have mostly a tendency to curve upwards. Aperture very nearly quadrate and graduating into a wide and straight canal. There is no actual wing, but in the well-preserved specimen, fig. 5 a, the spines are seen to be grooved, and the groove in the anterior lateral spine is seen distinctly to communicate through a notch in the outer lip with the aperture, hence it may also be said to have the function of a wing.
Spinigera recurva Hudleston, 1880, pl. III, fig. 5a
- Parkinsoni zone, upper Bajocian, middle Jurassic; Burton Bradstock Cliff, Dorset County, South West Region, England
Spinigera recurva Hudleston, 1880, pl. III, fig. 5b
- Parkinsoni zone, upper Bajocian, middle Jurassic; Vitney Cross, Oxfordshire County, South East Region, England
Spinigera recurva Hudleston, 1880, pl. III, fig. 5c, d, e
- Parkinsoni zone, upper Bajocian, middle Jurassic; Loders, Dorset County, South West Region, England
Spinigera recurva Hudleston, 1880, pl. III, fig. 5f, g, h
- Blackrock, Bridport, Dorset County, South West Region, England
Diempterus (Spinigera) recurvus (Hudleston, 1880); Inferior Oolite, Bathonian-Aalian, Jurassic; Burton Bradstock Cliff, Dorset, England; Syntype; Coll. Sedgwick Museum of Earth Sciences, University of Cambridge J.6606; Copyright Sedgwick Museum of Earth Sciences
Diempterus (Spinigera) recurvus (Hudleston, 1880); Inferior Oolite, Bathonian-Aalian, Jurassic; Vitney Cross, Bridport, Dorset, England; Syntype; Coll. Sedgwick Museum of Earth Sciences, University of Cambridge J.6607; Copyright Sedgwick Museum of Earth Sciences
