Unranked clade
Valid Extinct

Lognkosauria

Calvo et al. 2007

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
7
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Lognkosauria
click to enlarge
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
Fossil sites 7 geolocated sites
Distribution
Top countries
🇦🇷 Argentina
5
🇧🇷 Brazil
1
🇲🇦 Morocco
1
Geological formations
Bajo Barreal
1
Portezuelo
1
Cerro Lisandro
1
Sierra Barrosa
1
Bajo de la Carpa
1
Presidente Prudente
1
Couche III
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
1
Campanian (83.6–72.2 Ma)
1
Santonian (85.7–83.6 Ma)
1
Coniacian (89.8–85.7 Ma)
1
Turonian (93.9–89.8 Ma)
2
Cenomanian (100.5–93.9 Ma)
1
Images 2
Bibliography
Original description
J. O. Calvo, J. D. Porfiri, and B. J. González Riga, A. W. A. Kellner. 2007. A new Cretaceous terrestrial ecosystem from Gondwana with the description of a new sauropod dinosaur. Anais da Academia Brasileira de Ciências 79(3):529-541 DOI ↗
Bibliography (7)
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 ↗
K. L. N. Bandeira, F. Medeiros Simbras, and E. Batista Machado, D. de Almeida Campos, G. R. Oliveira, A. W. A. Kellner. 2016. A new giant Titanosauria (Dinosauria: Sauropoda) from the Late Cretaceous Bauru Group, Brazil. PLoS ONE 11(10):e0163373:1-25 DOI ↗
B. J. González Riga and L. Ortiz David. 2014. A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous (Cerro Lisandro Formation) of Mendoza Province, Argentina. Ameghiniana 51(1):3-25 DOI ↗
R. D. Juárez Valieri and J. O. Calvo. 2011. Revision of MUCPv 204, a Senonian basal titanosaur from northern Patagonia. Dinosaurios y Paleontología desde América Latina. Anales del III Congreso Latinoamericano de Paleontología. Editorial de la Universidad Nacional de Cuyo, Neuquén
C. Navarrete, G. Casal, and R. Martínez. 2011. Drusilasaura deseadensis gen. et sp. nov., un nuevo titanosaurio (Dinosauria–Sauropoda), de la Formacíon Bajo Barreal, Cretácico Superior del norte de Santa Cruz, Argentina [Drusilasaura deseadensis gen. et sp. nov., a new titanosaur (Dinosauria–Sauropoda), from the Bajo Barreal Formation, Upper Cretaceous of the north of Santa Cruz, Argentina]. Revista Brasileira de Paleontologia 14(1):1-14 DOI ↗
J. O. Calvo, J. D. Porfiri, and B. J. González Riga, A. W. A. Kellner. 2007. A new Cretaceous terrestrial ecosystem from Gondwana with the description of a new sauropod dinosaur. Anais da Academia Brasileira de Ciências 79(3):529-541 DOI ↗
B. J. González-Riga. 2003. A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza Province, Argentina. Ameghiniana 40(2):155-172