Bob:
Not to beat your question to death, but I came across two
additional articles on Old World Cretaceous dinosaurs which are
perhaps what you recall:
"Early Cretaceous dinosaurs from the Sahara," P. Sereno and 4
others, Science,v. 266, 267-271, Oct. 14, 1994.
"Africas dinosaur castaways," National Geographic, June, 1996, p.
106, by Paul Sereno.
Cheers,
David