I was alerted to this tradition by a Coptic scholar who specializes in Arabic manuscripts. He told me that there are some interesting statements about St Mark which appear in no other known sources. It would also be interesting to see the entries for Clement, Origen, Arius and the rest of the figures from the second, third and fourth centuries especially because Severus of Al'Ashmunein makes reference to a host of things which are quite unique (for instance his knowledge of a chronology of Popes of Alexandria where Dionysius reigned beyond the period assigned by Eusebius).
The work shows no locality or date of pub. We would says: Cairo, end of the 90’s. We deals with a very bad ed., based on one late ms. in Deir El Suryan (Mayamir 258), from which some extracts (we guess related to the time of the author, died after 1257) were in the possession of G. Graf (cf. GACL II, 370). Another copy is held in the Coptic Museum of Cairo (EG-C Hist. 517), once the property of the scholar Guirguis Filutha’us ‛Awad. About the pseudepigraphical question, see: Samuel Moawad, “Zur Originalität der Yūsāb von Fūwah zugeschriebenen Patriarchengeschichte”, Le Muséon, 119 (2006), 255-70. The vita of St Marc begins the History of the Patriarchs text, without any preliminaries in opposite to the traditional double History of the Patriarchs versions!
Here are the untranslated original pages in Arabic (the title page is upside down). Any ideas on who might be able to translate them?