| http://www.w3.org/ns/prov#value | - It appears near the end of the Barremian in Africa (Doyle et al., 1977, 1982; Doyle, 1992) but is rare in Laurasia until the early Albian (Kemp, 1968; Hochuli et al., 2006; Heimhofer et al., 2007); an exception is a report from the late Barremian of England (Hughes & McDougall, 1990).
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