de Smet، Klaas (يناير 1998). "Status of the Nile crocodile in the Sahara desert". SpringerLink. ج. 391 ع. 1–3: 81–86. DOI:10.1023/A:1003592123079. Another relict population [of Nile crocodiles], in the Tagant hills of Mauretania, was found to be probably extinct in 1996.