268 
A.R.I. Cruickshank, J.A. Long 
Figure 5 Leptocleidus clemai sp. nov. Mid cervical 
vertebra of WAM 92.6.1-30 in anterior (A), 
lateral (B) and ventral (C) views. Scale bar = 
1 cm. Abbreviations: fna, fossa for neural 
arch; fcer, attachment of cervical rib; fsc, sub¬ 
central foramina. 
Figure 7 Leptocleidus clemai sp. nov. Posterior cervical 
vertebra of WAM 94.1.6 - 60 in anterior (A) 
and lateral (B) views. Scale bar = 1 cm. 
Abbreviations as for Figure 5. 
Leptocleidus clemai sp. nov. 
Figures 3-16 
of a dorsomedian trough on the inner surface of 
the articular region of the lower jaw was thought 
to be an autapomorphy of Rhomaleosaurus 
(European Lias). 
1cm 
Figure 6 Leptocleidus clemai sp. nov. Posterior cervical 
vertebra of WAM 92.8.1-20 in anterior (A), 
lateral (B) and ventral (C) views. Scale bar = 
1 cm. Abbreviations as for Figure 5. 
Type specimen 
Holotype is WAM 92.8.1-1 to 68 (Figs. 3, 5,6, 8- 
12, 13A, C-E,14, 16), a partial skeleton comprising 
right femur (92.8.1-2), part of tibia (92.8.1-3), parts 
of the left femur (92.8.1-4), possible fragments of 
lower jaw, lacking teeth, (92.8.1-5A, B), pelvic 
girdle element (92.8.1-7), part of a propodial head 
(92.8.1-8), part of left ilium (92.8.1-9), portion of 
ilium shaft (92.8.1-56), lower jaw? fragment 
(92.8.1-57), ?part of scapula (92.8.1-58), various 
bone fragments and parts of neural arches (92.8.1- 
59 to 92.8.1-64), left ulna (92.8.1-65), right ulna 
(92.8.1-66), right radius(92.8.1-67) part of 
propodial? (92.8.1-68) and some 45 vertebrae 
(92.8.1-10 to 92.8.1-55). All specimens of 
Leptocleidus clemai sp. nov. are housed in the 
palaeontological collections of the Western 
Australian Museum. 
Horizon and locality 
The exact localities have been kept private at a 
request from the property manager, but they are 
recorded in the Department of Earth and Planetary 
Sciences locality register (within the Western 
Australian Museum). Upper metre of the Birdrong 
Sandstone, Early Cretaceous (Hauterivian- 
Barremian), Kalbarri region. Western Australia. 
Figure 8 Leptocleidus clemai sp. nov., WAM 92.8.1, 
dorsal vertebrae. A-E, 92.8.1-13 in posterior 
(A), anterior (B), dorsal (C), ventral (D) and 
right lateral (E) views. F-I, 92.8.1-16 in 
anterior (F), left lateral (G). ventral (H) and 
dorsal (I) views. All shown natural size. 
