ammonites
Calliostoma decamposi Maury 1924 (top snail)

Gastropoda - Trochoidea - Trochidae

Full reference: C. J. Maury. 1924. Fosseis Terciarios Do Brazil. Serico Geologico E Mineralogico Do Brazil Monograph 49

Belongs to Calliostoma according to C. J. Maury 1924

Sister taxa: Calliostoma (Ampullotrochus), Calliostoma (Calliostoma), Calliostoma (Elmerlinia), Calliostoma (Eutrochus), Calliostoma (Leiotrochus), Calliostoma (Pulchrastele), Calliostoma (Salsipotens), Calliostoma (Sarmates), Calliostoma (Sinutor), Calliostoma (Tristichotrochus), Calliostoma aphelium, Calliostoma attrina, Calliostoma bellicosum, Calliostoma bellum, Calliostoma blanfordi, Calliostoma calvertanum, Calliostoma castilla, Calliostoma ceramicum, Calliostoma cirrus, Calliostoma derbyi, Calliostoma eboreus, Calliostoma exile, Calliostoma flumenvadum, Calliostoma grabaui, Calliostoma grammaticum, Calliostoma granulata, Calliostoma hannibali, Calliostoma humile, Calliostoma ligatum, Calliostoma limonensis, Calliostoma metrium, Calliostoma mirificum, Calliostoma monile, Calliostoma negroensis, Calliostoma nonurum, Calliostoma peralveatum, Calliostoma philanthropus, Calliostoma pirabicum, Calliostoma promense, Calliostoma puelchanum, Calliostoma reclusus, Calliostoma retectum, Calliostoma rhombotoide, Calliostoma rhombotum, Calliostoma rugabasis, Calliostoma singuense, Calliostoma speciosa, Calliostoma tarltonense, Calliostoma tegulum, Calliostoma tropica, Calliostoma virginicum, Calliostoma wagneri, Calliostoma zizyphinum

Type specimen: Its type locality is Rio Pirabas (Maury coll.), which is in a Miocene shallow subtidal limestone/limestone in the Pirabas Formation of Brazil

Ecology: epifaunal carnivore