Sharpey’s fibres are known mainly as providing anchorage between tooth and the periodontal ligament but they occur also in other types of bones. In the postcranial skeleton these fibres are usually present at the muscle or tendon attachment sites. They were reported in all major groups of extant vertebrates, as well as in putative lissamphibian ancestors—temnospondyls and lepospondyls. However, it was recently stated that their presence was very rarely described in extant amphibians. In limbs, they were reported predominantly from proximal bones. They have not yet been reported from phalanges, which are the most commonly sectioned amphibian bones. Here, we describe phalangeal histology of nine species representing most major clades of lissamphibians. These results show that Sharpey’s fibres occur commonly in lissamphibian phalanges. In shaft, they are radially oriented and occur in the periosteal bone, at sites of tendon attachment. They can also occur in the metaphysis and contact the cartilage. This may provide a basis for foot muscle reconstructions in fossil amphibians.

中文翻译：

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夏佩氏纤维在两栖动物趾骨中的普遍存在

Sharpey 纤维主要用于在牙齿和牙周韧带之间提供锚固，但它们也存在于其他类型的骨骼中。在颅后骨骼中，这些纤维通常存在于肌肉或肌腱附着部位。它们在现存脊椎动物的所有主要群体中以及在假定的轻鳞动物祖先中——temnospondyls 和 lepospondyls 中都有报道。然而，最近有报道称，在现存的两栖动物中很少描述它们的存在。在四肢中，它们主要来自近端骨骼。它们尚未从指骨中报道，指骨是最常见的两栖动物骨骼。在这里，我们描述了九个物种的指骨组织学，这些物种代表了大多数主要的两栖动物进化枝。这些结果表明，夏皮氏纤维普遍存在于轻生动物趾骨中。在轴中，它们呈放射状，出现在骨膜中，在肌腱附着部位。它们也可以发生在干骺端并接触软骨。这可能为两栖动物化石中的足部肌肉重建提供基础。