Ichthyosaurus tenuirostris

Leptonectes is a genus of ichthyosaur that lived in the Late Triassic to Early Jurassic. Fossils have been found in Belgium, Germany, Spain and the United Kingdom. A possible specimen from Switzerland first reported in 2006, has been reclassified as that of Hauffiopteryx. The type species, L. tenuirostris, reached 4 metres (13 ft) long, whereas L. moorei likely reached 3 metres (9.8 ft) long; the largest species, L. solei, was approximately 5–6 metres (16–20 ft) long.