Unexpected microanatomical variation among Eocene Antarctic stem penguins (Aves: Sphenisciformes)

• Published in: Historical Biology
• Main Authors: Cerda, Ignacio Alejandro, Tambussi, Claudia Patricia, Degrange, Federico Javier
• Format: Article in Journal/Newspaper
• Language: English
• Published: Taylor & Francis
• Subjects: Aves; Sphenisciformes; Microanatomy; Histology; Skeletal Adaptations; https://purl.org/becyt/ford/1.5; https://purl.org/becyt/ford/1; Antarctic; Argentina; Cerda; Patagonia; The Antarctic; Antarc*
• Online Access: http://hdl.handle.net/11336/41915

The microanatomical and histological structure of Eocene Antarctic stem penguin tarsometatarsi is examined in order to characterise the bone microstructure. Eight adult tarsometatarsi belonging to eight fossil species (Palaeeudyptes gunnari, Palaeeudyptes klekowskii, Anthropornis grandis, Anthroporn...