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A Tylosaurine Mosasauridae (Squamata) from the Late Cretaceous of the Basque-Cantabrian Region

2006; Spanish National Research Council; Volume: 62; Issue: 1 Linguagem: Inglês

10.3989/egeol.0662121

1988-3250

Nathalie Bardet, Xabier Pereda Suberbiola, José Carmelo Corral,

Ichthyology and Marine Biology

An isolated mosasaurid tooth from the Campanian of Alava (Basque Country), previously referred to as cf.Mosasaurus sp., is here reattributed to a tylosaurine.It may belong to Tylosaurus, a nearly cosmopolitan genus known from the Santonian-Maastrichtian.This is the first occurrence of a tylosaurine mosasaurid in the Iberian Peninsula.Moreover, it corresponds to the southernmost occurrence of this clade in the northern margin of the Mediterranean Tethys.Tylosaurinae fossils are known from North America, Europe, New Zealand, Antarctica, Africa and Asia, but remain unknown from the southern Mediterranean Tethyan margin and from tropical palaeolatitudes.