Skip to main content
Fig. 8 | Swiss Journal of Palaeontology

Fig. 8

From: Neogene molluscs, shallow marine paleoenvironments, and chronostratigraphy of the Guajira Peninsula, Colombia

Fig. 8

a Typical surface expression of Castilletes Formation with low relief, gently sloping ridges capped by shell beds bounding recessive intervals of mudstone. b Sedimentary succession in upper Castilletes Formation near Bahia Tortugas (STRI 290657), comprising non-marine mudstone and coal (lowstand facies), and overlying marginal marine shell bed (transgressive facies). c Close-up of a sequence boundary in middle Castilletes Formation near Patajau (STRI 290849) with lowstand estuarine mudstone with articulated Phacoides and scattered Potamides overlain by a condensed shell bed of Anadara and Panchione. d Crassostrea bioherm in the upper Castilletes Formation near Bahia Tortugas (STRI 290658)

Back to article page