A new late Pleistocene fossil crocodile from Sudan reveals hidden diversity of Crocodylus in Africa

Abstract While Crocodylus fossils are common in late Cenozoic deposits of Africa, there is a lack of knowledge about species diversity within the genus, especially after the Early Pleistocene. Here we report on a complete skull of a new fossil Crocodylus from the Late Pleistocene of the Middle Atbar...

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Main Authors: Khalafallah Salih, Johannes Müller, Ali Eisawi, Faysal Bibi
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-08980-6
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author Khalafallah Salih
Johannes Müller
Ali Eisawi
Faysal Bibi
author_facet Khalafallah Salih
Johannes Müller
Ali Eisawi
Faysal Bibi
author_sort Khalafallah Salih
collection DOAJ
description Abstract While Crocodylus fossils are common in late Cenozoic deposits of Africa, there is a lack of knowledge about species diversity within the genus, especially after the Early Pleistocene. Here we report on a complete skull of a new fossil Crocodylus from the Late Pleistocene of the Middle Atbara River, eastern Sudan. Cranial morphology resembles Plio-Pleistocene species of Crocodylus from Africa in having upturned squamosals, though not as prominently developed as in these species, whereas the skull differs from fossil and extant Crocodylus in having a vaulted sagittal boss on the dorsal surface of the rostrum, and in the absence of a supraoccipital exposure on the dorsal skull table. Phylogenetic analyses indicate the Atbara Crocodylus represents a separate species and is more closely related to the fossil African crocodiles than the extant forms. The new species represents the first fossil Crocodylus to be described from the Late Pleistocene of Africa, providing new information on the occurrences and diversification of the genus Crocodylus during the Late Pleistocene.
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spelling doaj-art-2ff6e53cde64476ab8f0b1bded4cb3732025-08-20T03:04:30ZengNature PortfolioScientific Reports2045-23222025-08-0115111410.1038/s41598-025-08980-6A new late Pleistocene fossil crocodile from Sudan reveals hidden diversity of Crocodylus in AfricaKhalafallah Salih0Johannes Müller1Ali Eisawi2Faysal Bibi3Museum Für Naturkunde, Leibniz Institute for Evolution and Biodiversity ScienceMuseum Für Naturkunde, Leibniz Institute for Evolution and Biodiversity ScienceFaculty of Petroleum and Minerals, Al Neelain UniversityMuseum Für Naturkunde, Leibniz Institute for Evolution and Biodiversity ScienceAbstract While Crocodylus fossils are common in late Cenozoic deposits of Africa, there is a lack of knowledge about species diversity within the genus, especially after the Early Pleistocene. Here we report on a complete skull of a new fossil Crocodylus from the Late Pleistocene of the Middle Atbara River, eastern Sudan. Cranial morphology resembles Plio-Pleistocene species of Crocodylus from Africa in having upturned squamosals, though not as prominently developed as in these species, whereas the skull differs from fossil and extant Crocodylus in having a vaulted sagittal boss on the dorsal surface of the rostrum, and in the absence of a supraoccipital exposure on the dorsal skull table. Phylogenetic analyses indicate the Atbara Crocodylus represents a separate species and is more closely related to the fossil African crocodiles than the extant forms. The new species represents the first fossil Crocodylus to be described from the Late Pleistocene of Africa, providing new information on the occurrences and diversification of the genus Crocodylus during the Late Pleistocene.https://doi.org/10.1038/s41598-025-08980-6
spellingShingle Khalafallah Salih
Johannes Müller
Ali Eisawi
Faysal Bibi
A new late Pleistocene fossil crocodile from Sudan reveals hidden diversity of Crocodylus in Africa
Scientific Reports
title A new late Pleistocene fossil crocodile from Sudan reveals hidden diversity of Crocodylus in Africa
title_full A new late Pleistocene fossil crocodile from Sudan reveals hidden diversity of Crocodylus in Africa
title_fullStr A new late Pleistocene fossil crocodile from Sudan reveals hidden diversity of Crocodylus in Africa
title_full_unstemmed A new late Pleistocene fossil crocodile from Sudan reveals hidden diversity of Crocodylus in Africa
title_short A new late Pleistocene fossil crocodile from Sudan reveals hidden diversity of Crocodylus in Africa
title_sort new late pleistocene fossil crocodile from sudan reveals hidden diversity of crocodylus in africa
url https://doi.org/10.1038/s41598-025-08980-6
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