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Clare Rothschild says yes in “The Muratorian Fragment as Roman Fake,” NovT 60, no. 1 (2018): 55–82 and now Christophe Guignard says no in “The Muratorian Fragment as a Late Antique Fake? An Answer to C. K. Rothschild,” RevSR 93/1–2 (2019): 73–90.
I haven’t had time to read either so I’m just the messenger here. For an informed opinion, I’d ask John Meade except he’s on vacation. Slacker!
Clik here to view.

I haven’t had time to read either so I’m just the messenger here. For an informed opinion, I’d ask John Meade except he’s on vacation. Slacker!