First pachycormiform (Actinopterygii, Pachycormiformes) remains from the Late Jurassic of the Antarctic Peninsula and remarks on bone alteration by recent bioeroders

• Main Authors: Gouiric-Cavalli, Soledad, Rasia, Luciano L., Márquez, Gonzalo J., Rosato, Vilma, Scasso, Roberto A., Reguero, Marcelo
• Format: Text
• Language: unknown
• Published: Taylor & Francis 2019
• Subjects: Biochemistry; Cell Biology; Physiology; FOS Biological sciences; Evolutionary Biology; 59999 Environmental Sciences not elsewhere classified; FOS Earth and related environmental sciences; Ecology; Inorganic Chemistry; FOS Chemical sciences; Antarctic; The Antarctic; Antarctic Peninsula; Nordenskjöld; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.6084/m9.figshare.7713440; https://tandf.figshare.com/articles/First_pachycormiform_Actinopterygii_Pachycormiformes_remains_from_the_Late_Jurassic_of_the_Antarctic_Peninsula_and_remarks_on_bone_alteration_by_recent_bioeroders/7713440

We describe osteichthyan remains from the Upper Jurassic of the Ameghino (= Nordenskjöld) Formation of the Antarctic Peninsula. The fossils are referred to a suspension-feeding pachycormid based on the shape, morphology, and presence of acus fanunculi (needle teeth) on their gill rakers. Due to the...