Museum Quality Selkirkia willoughbyi from Cambrian Utah

Selkirkia willoughbyi

Phylum Priapulida

Geological Time: Upper Middle Cambrian

Size: 45 mm

Fossil Site: Marjum Formation, House Range, Millard County, Utah

Selkirkia willoughbyi from Cambrian UtahDescription: This specimen shows a priapulid of the genus Slekirkia which is undoubtedly the best-preserved I have come across in some time. Notice evidence of both the gut trace and the everted proboscis. The Priapulidapriapulids are a group of non-segmented worms whose modern-day examples can reach 30 cm in length, and live in both shallow and deep marine sands as carnivores. The terminal mouth bears cone-shaped projections called scalids by which the worm would snare its prey. Their tube presumably was held nearly vertically in the substrate with just the tip protruding into the water column.

Related: Konservat Lagerstatte Biota from Utah

click to enlarge


l Fossil Mall Home l Fossils Science Section l

Cambrian Explosion Fossils at Fossil Mall