{"title":"No evidence for a giant, late-surviving Onchopristis: Comment on Capasso et al. (2024)","authors":"Tyler Greenfield","doi":"10.1016/j.jafrearsci.2025.105541","DOIUrl":null,"url":null,"abstract":"<div><div>Capasso et al. (2024) reported an exceptionally large rostrum of the sawskate <em>Onchopristis</em> sp. from the Maastrichtian Dakhla Formation of Egypt. They also described four isolated lateral rostral denticles which were referred to the same taxon. However, here it is demonstrated that neither can be assigned to <em>Onchopristis</em>; the rostrum is Sclerorhynchoidei indet. and the rostral denticles are <em>Sclerorhynchus</em> cf. <em>leptodon</em>. Additionally, the status of the actual longest <em>Onchopristis</em> rostrum is clarified.</div></div>","PeriodicalId":14874,"journal":{"name":"Journal of African Earth Sciences","volume":"223 ","pages":"Article 105541"},"PeriodicalIF":2.2000,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of African Earth Sciences","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1464343X25000081","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
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Abstract
Capasso et al. (2024) reported an exceptionally large rostrum of the sawskate Onchopristis sp. from the Maastrichtian Dakhla Formation of Egypt. They also described four isolated lateral rostral denticles which were referred to the same taxon. However, here it is demonstrated that neither can be assigned to Onchopristis; the rostrum is Sclerorhynchoidei indet. and the rostral denticles are Sclerorhynchus cf. leptodon. Additionally, the status of the actual longest Onchopristis rostrum is clarified.
期刊介绍：
The Journal of African Earth Sciences sees itself as the prime geological journal for all aspects of the Earth Sciences about the African plate. Papers dealing with peripheral areas are welcome if they demonstrate a tight link with Africa.
The Journal publishes high quality, peer-reviewed scientific papers. It is devoted primarily to research papers but short communications relating to new developments of broad interest, reviews and book reviews will also be considered. Papers must have international appeal and should present work of more regional than local significance and dealing with well identified and justified scientific questions. Specialised technical papers, analytical or exploration reports must be avoided. Papers on applied geology should preferably be linked to such core disciplines and must be addressed to a more general geoscientific audience.
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