A new small duckbilled dinosaur (Hadrosauridae: Lambeosaurinae) from Morocco and dinosaur diversity in the late Maastrichtian of North Africa DOI Creative Commons
Nicholas R. Longrich, Xabier Pereda Suberbiola, Nathalie Bardet

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Feb. 13, 2024

Abstract In the Late Cretaceous, northern and southern hemispheres evolved distinct dinosaurian faunas. Titanosaurians abelisaurids dominated Gondwanan continents; hadrosaurids, ceratopsians tyrannosaurs North America Asia. Recently, a lambeosaurine hadrosaurid, Ajnabia odysseus , was reported from late Maastrichtian phosphates of Oulad Abdoun Basin Morocco, suggesting dispersal between Laurasia Gondwana. Here we report new fossils Morocco showing lambeosaurines achieved high diversity in Africa. A skull represents dwarf lambeosaurine, Minqaria bata . resembles size, but differs ventrally positioned jugal facet sinusoidal toothrow. The animal is small, ~ 3.5 m long, fused braincase shows it mature. humerus femur belong to larger 6 implying at least three species coexisted. hadrosaurids Europe Africa suggests dispersal-driven radiation, with diversifying take advantage low ornithischian diversity. African are small compared American Asia however, perhaps due competition titanosaurians. Hadrosaurids unknown eastern Africa, Moroccan may be part insular fauna, represent an island radiation.

Language: Английский

A new small duckbilled dinosaur (Hadrosauridae: Lambeosaurinae) from Morocco and dinosaur diversity in the late Maastrichtian of North Africa DOI Creative Commons
Nicholas R. Longrich, Xabier Pereda Suberbiola, Nathalie Bardet

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Feb. 13, 2024

Abstract In the Late Cretaceous, northern and southern hemispheres evolved distinct dinosaurian faunas. Titanosaurians abelisaurids dominated Gondwanan continents; hadrosaurids, ceratopsians tyrannosaurs North America Asia. Recently, a lambeosaurine hadrosaurid, Ajnabia odysseus , was reported from late Maastrichtian phosphates of Oulad Abdoun Basin Morocco, suggesting dispersal between Laurasia Gondwana. Here we report new fossils Morocco showing lambeosaurines achieved high diversity in Africa. A skull represents dwarf lambeosaurine, Minqaria bata . resembles size, but differs ventrally positioned jugal facet sinusoidal toothrow. The animal is small, ~ 3.5 m long, fused braincase shows it mature. humerus femur belong to larger 6 implying at least three species coexisted. hadrosaurids Europe Africa suggests dispersal-driven radiation, with diversifying take advantage low ornithischian diversity. African are small compared American Asia however, perhaps due competition titanosaurians. Hadrosaurids unknown eastern Africa, Moroccan may be part insular fauna, represent an island radiation.

Language: Английский

Citations

7