干旱区生态环境知识资源中心(Arid): A long-snouted dyrosaurid (Crocodyliformes, Mesoeucrocodylia) from the Campanian Quseir Formation of Egypt

Arid

DOI	10.1016/j.cretres.2024.105982
	A long-snouted dyrosaurid (Crocodyliformes, Mesoeucrocodylia) from the Campanian Quseir Formation of Egypt
	Saber, Sara; Salem, Belal S.; Ouda, Khaled; Gohar, Abdullah S.; El-Sayed, Sanaa; Sallam, Hesham M.
通讯作者	Saber, S
来源期刊	CRETACEOUS RESEARCH
ISSN	0195-6671
EISSN	1095-998X
出版年	2025
卷号	165
英文摘要	Dyrosauridae, a clade of neosuchian crocodyliforms, was a significant component of terrestrial and aquatic ecosystems across the latest Cretaceous to Paleogene of North Africa. Here, we report a dyrosaurid mandibular symphysis recovered from the middle-upper Campanian Quseir Formation near Kharga Oasis in the southern Western Desert of Egypt. This is a partial mandible (MUVP 635), including dentaries and splenials, assigned to Dyrosauridae based on its dental pattern, size, and the shape of the splenial in the symphysis. MUVP 635 exhibits alveolar diameters shorter than the interalveolar distances within the same row. Moreover, the seventh dentary alveolus is significantly large, comparable in size to the fourth dentary alveolus, while the sixth dentary alveolus is positioned close to the seventh dentary alveolus and is as small as the eighth dentary alveolus, which is adjacent to the ninth dentary alveolus. Phylogenetic analysis places MUVP 635 as an early-diverging member of Dyrosauridae, consistent with its middle-late Campanian age. It aligns with a polytomy with Chenanisuchus lateroculi and Anthracosuchus balrogus identified as the most basal members of Dyrosauridae. The discovery of new dyrosaurid material in the Quseir Formation extends the range of Dyrosauridae to the middle Campanian, highlighting the taxonomic richness of the dyrosaurid clade across North Africa and supporting hypotheses of the African origin for this family. (c) 2024 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
英文关键词	Campanian Quseir Formation Kharga Oasis Mandibular symphysis Dyrosauridae North Africa
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001302906600001
WOS关键词	WESTERN DESERT ; PHYLOGENETIC-RELATIONSHIPS ; ENIGMATIC CROCODYLIFORM ; PALEOCENE ; REVISION ; CROCODYLOMORPHA ; MOROCCO ; REMAINS ; BASIN ; ASSEMBLAGE
WOS类目	Geology ; Paleontology
WOS研究方向	Geology ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405955
推荐引用方式 GB/T 7714	Saber, Sara,Salem, Belal S.,Ouda, Khaled,et al. A long-snouted dyrosaurid (Crocodyliformes, Mesoeucrocodylia) from the Campanian Quseir Formation of Egypt[J],2025,165.
APA	Saber, Sara,Salem, Belal S.,Ouda, Khaled,Gohar, Abdullah S.,El-Sayed, Sanaa,&Sallam, Hesham M..(2025).A long-snouted dyrosaurid (Crocodyliformes, Mesoeucrocodylia) from the Campanian Quseir Formation of Egypt.CRETACEOUS RESEARCH,165.
MLA	Saber, Sara,et al."A long-snouted dyrosaurid (Crocodyliformes, Mesoeucrocodylia) from the Campanian Quseir Formation of Egypt".CRETACEOUS RESEARCH 165(2025).