Argentina antarctica Schwarzhans & Mors & Engelbrecht & Reguero & Kriwet 2017, sp. nov. ...

• Main Authors: Schwarzhans, Werner, Mors, Thomas, Engelbrecht, Andrea, Reguero, Marcelo, Kriwet, Jurgen
• Format: Text
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Osmeriformes; Argentinidae; Argentina; Argentina antarctica; Seymour; Seymour Island; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.10903175; https://zenodo.org/doi/10.5281/zenodo.10903175

Argentina antarctica sp. nov. (Figs 3A—C, 6A) Holotype. NRM-PZ P.15964 (Figs 3A—C, 6A) (only specimen). Occurrence. Telm 5 unit; ‘ Natica horizon’, Cucullea I member, La Meseta Formation, late Ypresian, early Eocene. Site IAA 2/95, Seymour Island, Antarctica. Etymology. Named after its occurrence in the Eocene of Antarctica. Diagnosis. Dorsal rim anteriorly depressed, without excisura; posteriorly broadly expanded. Ventral rim deep and regularly curved. All rims intensely crenulated. Cauda straight, terminating close to posterior rim of otolith, not connected through postcaudal depression. Description. A single, thin, large otolith of 5.6 mm in length, mostly well preserved except for the anterior tip of the rostrum. OL:OH = 1.6; OH:OT = 4.3. Dorsal rim anteriorly depressed, nearly straight, inclined, without excisura at upper rim of ostial opening; posteriorly much expanded with broadly rounded postdorsal angle and faint denticle at middorsal position. Ventral rim deeply and regularly curved, deepest at ... : Published as part of Schwarzhans, Werner, Mors, Thomas, Engelbrecht, Andrea, Reguero, Marcelo & Kriwet, Jurgen, 2017, Before the freeze: otoliths from the Eocene of Seymour Island, Antarctica, reveal dominance of gadiform fishes (Teleostei), pp. 147-170 in Journal of Systematic Palaeontology 15 (2) on page 152, DOI: 10.1080/14772019.2016.1151958, http://zenodo.org/record/10883098 ...