Vegavis iaai has key importance as the most complete of the few neornithine birds known from the Cretaceous, yet its phylogenetic relationships remain controversial. To seek new data to resolve this problem, we fully extracted the skeleton of the holotype MLP 93-I-3-1 from the sedimentary matrix it had been found in to enable new direct observations on its osteology. We provide the first detailed descriptions of the synsacrum confirming the presence of fifteen ankylosed vertebrae, and of the cervical and thoracic vertebrae for this specimen, and elaborate on the available descriptions of the coracoid, humerus, radius, and all pelvic limb elements. A well-marked proximo-caudal fossa of the femur, described as a diagnostic character for Vegavis from observations of the referred specimen, is shallow and poorly defined in the holotype. The skeleton reveals a mix of features supporting enhanced diving ability for the bird. We make three-dimensional scans and high-quality images of all bones in the holotype available for further comparisons.

作为白垩纪已知的少数新鸟鸟中最完整的鸟，Vegavis iaai具有至关重要的作用，但其系统发生关系仍存在争议。为了寻找新的数据来解决该问题，我们从发现的沉积基质中完全提取了完整型MLP 93-I-3-1的骨架，以便对其骨科进行新的直接观察。我们提供该突触的第一个详细描述，以确认该标本有15个强直椎骨以及颈椎和胸椎，并详细描述了喙骨，肱骨，radius骨和所有骨盆四肢元素的可用描述。股骨上有明显标记的近端尾窝，被描述为Vegavis的诊断特征从参照标本的观察结果来看，该标本较浅且定义不清。骨骼展现出多种功能，可增强鸟类的潜水能力。我们提供整型中所有骨骼的三维扫描和高质量图像，以供进一步比较。