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Marambiornopsis
Holotype fossils
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Sphenisciformes
Family:	Spheniscidae
Genus:	†Marambiornopsis
Species:	†M. sobrali
Binomial name
†Marambiornopsis sobrali Jadwiszczak et al., 2021

Marambiornopsis is an extinct genus of Eocene penguin known from the Submeseta Formation in Antarctica. It contains one species, M. sobrali.

Discovery

The fossils were found during two joined Argentine and Swedish expeditions between February 2011 to February 2012 to the Submeseta Formation, which were later stored in the fossil collections by the staff of the Swedish Museum of Natural History in Stockholm.

Etymology

The genus Marambiornopsis is named after another already-existing genus Marambiornis, combined with the Greek word ópsis, which in this case was used for "appearance". The specific names was in honor of Argentine geologist and Navy Sub-Lieutenant José María Sobral, who also found the first antarctic penguin fossils.

References

1. ^ Jadwiszczak, Piotr; Reguero, Marcelo; Mörs, Thomas (2021-07-03). "A new small-sized penguin from the late Eocene of Seymour Island with additional material of Mesetaornis polaris". GFF. 143 (2–3): 283–291. doi:10.1080/11035897.2021.1900385. ISSN 1103-5897. S2CID 237679229.

v t e Genera of penguins, petrels, and albatrosses and their extinct allies
Kingdom: Animalia Phylum: Chordata Class: Aves Infraclass: Neognathae Clade: Austrodyptornithes
Sphenisciformes incertae sedis †Arthrodytes †Aprosdokitos †Kaiika †Kumimanu †Kupoupou †Muriwaimanu †Nucleornis †Orthopteryx †Pakudyptes †Petradyptes †Sequiwaimanu †Tonniornis †Waimanu †Wimanornis Spheniscidae †Crossvallia †Dege †Duntroonornis †Korora †Icadyptes †Inguza †Inkayacu †Kairuku †Marambiornopsis †Marplesornis †Palaeoapterodytes †Perudyptes †Pseudaptenodytes †Tasidyptes †Tereingaornis †Palaeospheniscinae Eretiscus Palaeospheniscus †Paraptenodytinae Arthrodytes Paraptenodytes †"Palaeeudyptinae" Anthropodyptes Anthropornis Archaeospheniscus Delphinornis Marambiornis Mesetaornis Pachydyptes Palaeeudyptes Platydyptes Spheniscinae Aptenodytes Eudyptes Eudyptula †Madrynornis Megadyptes Pygoscelis Spheniscus
Procellariiformes incertae sedis †Kievornis †Lonchodytes? †Makahala †Diomedeoididae Diomedeoides Rupelornis †Marinavidae Marinavis †Tytthostonychidae Tytthostonyx Diomedeidae †Aldiomedes †Diomedavus Diomedea †Murunkus †Notoleptos Phoebastria Phoebetria †Plotornis Thalassarche †Tydea Oceanitidae Fregetta Garrodia Nesofregetta Oceanites Pelagodroma Hydrobatidae Hydrobates Procellariidae Aphrodroma Ardenna †Argyrodyptes Bulweria Calonectris Daption †Eopuffinus Fulmarus Halobaena Macronectes Pachyptila Pagodroma Pelecanoides †Primodroma Procellaria Pseudobulweria Pterodroma †Pterodromoides Puffinus Thalassoica

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• Spheniscidae
• Extinct penguins
• Priabonian
• Priabonian genera
• Extinct animals of Antarctica
• Prehistoric animals of Antarctica
• Prehistoric birds of Antarctica
• Fossil taxa described in 2021
• Prehistoric bird stubs
• Sphenisciformes stubs