Subfamily
Valid Extinct

Yaguarasaurinae

Palci et al. 2013

The Yaguarasaurinae are a subfamily of mosasaurs, a diverse group of Late Cretaceous marine squamates. Members of the subfamily are informally and collectively known as "yaguarasaurines" and have been recovered from North and South America and Europe. Three genera, Yaguarasaurus, Russellosaurus and Romeosaurus are known. Yaguarasaurus and Russellosaurus were previously considered part of the Tethysaurinae until they were grouped with Romeosaurus as yaguarasaurines.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
5
Group
Mosasaures
Carnivore aquatic Terrestrial
Yaguarasaurinae
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Fossil of Romeosaurus, an extinct reptile - Took the picture at Museo Paleontologico di Sant'Anna d'Alfaedo © Ghedoghedo · CC BY-SA 3.0 · Wikimedia
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Classification
Mosasauridae Family
›
Yaguarasaurinae Subfamily
Fossil sites 5 geolocated sites
Distribution
Top countries
🇮🇹 Italy
3
🇲🇽 Mexico
1
🇺🇸 United States
1
Geological formations
Scaglia Rossa Veneta
3
Arcadia Park Shale
1
Temporal distribution
Coniacian (89.8–85.7 Ma)
1
Turonian (93.9–89.8 Ma)
4
Images 1
Bibliography
Original description
A. Palci, M. W. Caldwell, and C. A. Papazzoni. 2013. A new genus and subfamily of mosasaurs from the Upper Cretaceous of northern Italy. Journal of Vertebrate Paleontology 33(3):599-612 DOI ↗
Bibliography (3)
J. Alvarado-Ortega, K. M. Cantalice, and J. A. Díaz-Cruz, C. Castañeda-Posadas, V. Zavaleta-Villareal. 2020. Vertebrate fossils from the San José de Gracia quarry, a new Late Cretaceous marine fossil site in Puebla, Mexico. Boletín de la Sociedad Geológica Mexicana 72(1) DOI ↗
A. Palci, M. W. Caldwell, and C. A. Papazzoni. 2013. A new genus and subfamily of mosasaurs from the Upper Cretaceous of northern Italy. Journal of Vertebrate Paleontology 33(3):599-612 DOI ↗
M. J. Polcyn and G. L. Bell. 2005. Russellosaurus coheni n. gen., n. sp., a 92 million-year-old mosasaur from Texas (USA), and the definition of the parafamily Russellosaurina. Netherlands Journal of Geosciences — Geologie en Mijnbouw 84(3):321-333 DOI ↗