 A previous contender, the "Harlech turtle", was purportedly in CCL and in weight, however recent inspection of its remains housed at the National Museum Cardiff have found that its true CCL is closer to , casting doubt on the accuracy of the claimed weight, as well.On the other hand, one scientific paper has claimed that the species can weigh up to without providing more verifiable detail.The leatherback turtle is scarcely larger than any other sea turtle upon hatching, as they average in carapace length and weigh around when freshly hatched.