Wormlike fossil from the pennsylvanian of illinois
- PMID: 17842092
- DOI: 10.1126/science.151.3706.75-a
Wormlike fossil from the pennsylvanian of illinois
Abstract
Tullimonstrum gregarium was a common, possibly marine, invertebrate in certain shallow, offshore waters of northern Illinois during the Middle Pennsylvanian. It had a flexible proboscis armed with teeth; a mobile tail; and a curious transverse bar behind the head, bearing a pair of round, external organs.
LinkOut - more resources
Full Text Sources
