Family
Valid Extinct

Argentinosauridae

Longrich et al. 2026

Lognkosauria is a clade of giant long-necked sauropod dinosaurs within the clade Titanosauria. It includes some of the largest and heaviest dinosaurs known. They lived in South America, Africa, and possibly Asia during the Cretaceous period.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Argentinosauridae
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Blue Dinosaur Royal Ontario Museum © Steven Depolo from Grand Rapids, MI, USA · CC BY 2.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
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Saurischia Unranked clade
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Sauropodomorpha Unranked clade
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Massopoda Unranked clade
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Sauropodiformes Unranked clade
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Sauropoda Unranked clade
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Gravisauria Unranked clade
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Eusauropoda Unranked clade
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Neosauropoda Unranked clade
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Macronaria Unranked clade
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Titanosauriformes Unranked clade
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Somphospondyli Unranked clade
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Titanosauria Unranked clade
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Colossosauria Unranked clade
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Lognkosauria Unranked clade
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Argentinosauridae Family
Fossil sites 1 geolocated sites
Distribution
Top countries
🇲🇦 Morocco
1
Geological formations
Couche III
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
1
Images 1
Bibliography
Original description
N. R. Longrich, A. Pérez-Moreno, and V. Díez Díaz, X. Pereda-Suberbiola, N. Bardet, N. Jalil. 2026. A Titanosaurian Sauropod with South American Affinities (Lognkosauria: Argentinosauridae) from the Late Maastrichtian of Morocco and Evidence for Dinosaur Endemism in Africa. Diversity 18(5):241 DOI ↗
Bibliography (1)
N. R. Longrich, A. Pérez-Moreno, and V. Díez Díaz, X. Pereda-Suberbiola, N. Bardet, N. Jalil. 2026. A Titanosaurian Sauropod with South American Affinities (Lognkosauria: Argentinosauridae) from the Late Maastrichtian of Morocco and Evidence for Dinosaur Endemism in Africa. Diversity 18(5):241 DOI ↗