Pujatopouli, new neoavian bird from Cretaceous of Antarctica
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Ben Creisler
Nov 10, 2025, 9:42:53 PM (14 hours ago) Nov 10
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Ben Creisler
A new paper:
Pujatopouli soberana gen. et sp. nov.
Facundo Irazoqui, Carolina Acosta Hospitaleche, Javier N. Gelfo, Ariana Paulina Carabajal, Paula Bona & Leonel Acosta Burlaille (2025)
Diving in the Maastrichtian of Marambio (Seymour) Island: A new member of the Neoaves in the Cretaceous Antarctic avifauna
Cretaceous Research 106259
doi: https://doi.org/10.1016/j.cretres.2025.106259
https://www.sciencedirect.com/science/article/abs/pii/S019566712500182X
Highlights
A new genus and species of Cretaceous Neoaves is described.
Phylogenetic analysis suggests its relationship to Aequornithes.
A coeval existence of Galloanseres and Neoaves in the Maastrichtian of Marambio Island is postulated.
The López de Bertodano Formation is the only lithostratigraphic showing a high diversity of Cretaceous Neornithes.
This avifauna is characterized by the predominance of foot-propelled diving birds.
ABSTRACT
A new genus and species of Cretaceous bird from Antarctica with implications for the early evolution of Neornithes is described here. The type specimen of Pujatopouli soberana gen. et sp. nov. (MLP-PV 08-XI-30-44), preserving part of the skull and postcranium, was recovered from Maastrichtian deposits of the López de Bertodano Formation on Marambio (Seymour) Island, James Ross Basin, West Antarctica. The phylogenetic relationships of Pujatopouli with other avian species, including all previously described Cretaceous birds from Antarctica, were assessed using two different datasets. The first, mainly composed of Mesozoic birds, places Pujatopouli within the crown group of birds (Neornithes), whereas the second, which includes a broad sampling of modern taxa, positions it within Neoaves, and closely related to the ‘core-waterbirds’ (Aequornithes). Besides, morphological evidence suggests that Pujatopouli was a foot-propelled diver with an ichthyophagous diet, living sympatrically with other neornithine birds along the Antarctic coast during the latest Cretaceous.
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Pujatopouli soberana gen. et sp. nov.
Facundo Irazoqui, Carolina Acosta Hospitaleche, Javier N. Gelfo, Ariana Paulina Carabajal, Paula Bona & Leonel Acosta Burlaille (2025)
Diving in the Maastrichtian of Marambio (Seymour) Island: A new member of the Neoaves in the Cretaceous Antarctic avifauna
Cretaceous Research 106259
doi: https://doi.org/10.1016/j.cretres.2025.106259
https://www.sciencedirect.com/science/article/abs/pii/S019566712500182X
Highlights
A new genus and species of Cretaceous Neoaves is described.
Phylogenetic analysis suggests its relationship to Aequornithes.
A coeval existence of Galloanseres and Neoaves in the Maastrichtian of Marambio Island is postulated.
The López de Bertodano Formation is the only lithostratigraphic showing a high diversity of Cretaceous Neornithes.
This avifauna is characterized by the predominance of foot-propelled diving birds.
ABSTRACT
A new genus and species of Cretaceous bird from Antarctica with implications for the early evolution of Neornithes is described here. The type specimen of Pujatopouli soberana gen. et sp. nov. (MLP-PV 08-XI-30-44), preserving part of the skull and postcranium, was recovered from Maastrichtian deposits of the López de Bertodano Formation on Marambio (Seymour) Island, James Ross Basin, West Antarctica. The phylogenetic relationships of Pujatopouli with other avian species, including all previously described Cretaceous birds from Antarctica, were assessed using two different datasets. The first, mainly composed of Mesozoic birds, places Pujatopouli within the crown group of birds (Neornithes), whereas the second, which includes a broad sampling of modern taxa, positions it within Neoaves, and closely related to the ‘core-waterbirds’ (Aequornithes). Besides, morphological evidence suggests that Pujatopouli was a foot-propelled diver with an ichthyophagous diet, living sympatrically with other neornithine birds along the Antarctic coast during the latest Cretaceous.
Gregory Paul
8:40 AM (3 hours ago) 8:40 AM
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Might anyone have a pdf of
Zammit, M. 2010 A review of Australasian ichthyosaurus. Alcheringa 34: 281-292?
Franco Sancarlo
8:43 AM (3 hours ago) 8:43 AM
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Here it is
Il Mar 11 Nov 2025, 14:40 'Gregory Paul' via Dinosaur Mailing Group <DinosaurMa...@googlegroups.com> ha scritto:
Might anyone have a pdf ofZammit, M. 2010 A review of Australasian ichthyosaurus. Alcheringa 34: 281-292?
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Isaac Wilson
10:09 AM (2 hours ago) 10:09 AM
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On a similar note (that of searching for papers), yesterday the supplementary information for Holly Woodward Ballard's Tyrannosaurus histology paper was released on FigShare. However, the paper itself seems to be missing! How often does the supplementary information release without the paper it's meant to accompany, and does anyone know if the full paper is meant to be released soon?
Isaac
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