 Some of these included restorations with musculature layered atop them, which in the early 1820s could be considered the earliest examples of illustrations of animal tissue built up over fossil skeletons.As huge and detailed fossil restorations were at this point appearing in the same publications as these modest attempts at soft tissue restoration, historians have speculated whether this reflected shame and lack of interest in paleoart as being too speculative to have scientific value at the time.One notable deviation from the Cuvier-like approach is seen in a cartoon drawn by geologist William Conybeare in 1822.