Genus
Valid Extinct

Marambionectes

O’Gorman et al. 2024

Marambionectes is an extinct genus of weddellonectian elasmosaurid plesiosaur from the Late Cretaceous López de Bertodano Formation of Antarctica. The genus contains a single species, M. molinai, known from a partial skeleton.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Sauroptérygiens
Carnivore aquatic, depth=surface Marine
Marambionectes
click to enlarge
This reconstruction of Marambionectes molinai, found from the Lopez de Bertodano Formation, is based off of other related elasmosaurs such as Aristonectes and Nakonanectes. © ShamuBlackfish · CC0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Sauropterygia Suborder
›
Plesiosauria Order
›
Plesiosauroidea Superfamily
›
Elasmosauridae Family
›
Weddellonectia Unranked clade
›
Marambionectes Genus
Fossil sites 1 geolocated sites
Distribution
Top countries
🇦🇶 Antarctica
1
Geological formations
López de Bertodano
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
1
Species (1)
Marambionectes molinai 72 Ma
Images 1
Bibliography
Original description
J. P. O’Gorman, J. I. Canale, and P. Bona, D. E. Tineo, M. Reguero, M. Cárdenas. 2024. A new elasmosaurid (Plesiosauria: Sauropterygia) from the López de Bertodano Formation: new data on the evolution of the aristonectine morphology. Journal of Systematic Palaeontology 22(1):2312302 DOI ↗
Bibliography (1)
J. P. O’Gorman, J. I. Canale, and P. Bona, D. E. Tineo, M. Reguero, M. Cárdenas. 2024. A new elasmosaurid (Plesiosauria: Sauropterygia) from the López de Bertodano Formation: new data on the evolution of the aristonectine morphology. Journal of Systematic Palaeontology 22(1):2312302 DOI ↗