Shelly sediment of the Norwich Crag. A mixture of orangey-yellow sand and white and russet brown debris of fossil bivalve and gastropod shells, etc. Cockle shells are visible in the middle of the picture
Close up (@ 10 times magnification) of a sieved sample (@ 1.4 mm) of white and brown debris of fossil bivalve, gastropod and barnacle shells.
A sieved sample of barnacle debris from the Crag magnified 16 times.
A sieved sample of tiny gastropod shells - perhaps Hydrobia ulvae - from the Crag, magnified 16 times. Perhaps suggesting that mud flats were not far away.
New samples of shelly Norwich Crag sediment from the Waveney valley, Norfolk, UK, perhaps 1.5 m yrs old. A Crag site new to science and rich in fossils #barnacles #bivalves #forams #gastropods. Sadly samples were extracted from below quarry water level so field relationships uncertain. #Pleistocene