Laminae terminology applied to cervical vertebrae of Pelomedusoides (Testudines, Pleurodira)

• Ano de defesa: 2024
• Autor(a) principal: Andrade, Dias Campos de
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: eng
• Instituição de defesa: Universidade Federal de Viçosa; Biologia Animal
• Palavras-chave em Português: Pelomedusoides - Anatomia - Classificação; Ossos - Classificação; CIENCIAS BIOLOGICAS
• Link de acesso: https://locus.ufv.br/handle/123456789/33340; https://doi.org/10.47328/ufvbbt.2024.787

The nomenclatural basis for identifying anatomical components of the cervical vertebrae in turtles is still non-standardized and incomplete. With that in mind, we propose an adaptation of laminae in the cervical vertebrae of Pelomedusoides derived from the well-established nomenclature used for sauropod dinosaurs. This approach is a landmark-based serial analysis to examine the appearance of the laminae along the neck, i.e., identifying their presence or absence and the changes in length, height, width, and orientation. We established the anatomical demarcations using traceable landmarks and identified twelve types of laminae: four of which are Apophyseal laminae, linking the transverse apophyses to the zygapophyses and centrum; Two Spinal laminae continuum to the prezygapophyses articulation fossae and the postzygapophyses articulations; Two Zygapophyseal laminae linking to the centrum; and four Hypapophyseal laminae that link the Cranial and Caudal hypapophysis together or to the vertebral centra. Applying such precise topological terminology improves the potential phylogenetic assessments of turtle interrelationship and morphofunctional adaptations of living and extinct taxa. Keywords: comparative anatomy; neck; osteology; turtle.