W

Cyclida is an order of fossil arthropods that lived from the Carboniferous to the Cretaceous. Their classification is uncertain, but they are generally treated as a group of maxillopod crustaceans.

W

Angustidontus is a genus of predatory pelagic crustaceans from the Late Devonian and Early Carboniferous periods, classified as part of the subclass Eumalacostraca. Fossils of the genus have been recovered in relative abundance from Canada, Germany, the Czech Republic, Poland, Belarus, Ukraine and large parts of the United States, including Oklahoma, Ohio, Indiana, Kentucky, Montana, Utah, Nevada.

W

Cyclida is an order of fossil arthropods that lived from the Carboniferous to the Cretaceous. Their classification is uncertain, but they are generally treated as a group of maxillopod crustaceans.

W

Belotelson is a genus of crustaceans, in the extinct order Belotelsonidea, containing at least two species. It was first named by Packard in 1886 from material found in the Mazon Creek lagerstätte in Illinois. Its fossils have been found in Pennsylvanian age rocks.

W

Cyclida is an order of fossil arthropods that lived from the Carboniferous to the Cretaceous. Their classification is uncertain, but they are generally treated as a group of maxillopod crustaceans.

W

Kallidecthes is an extinct genus of crustaceans.

W

Peachocaris is a genus of extinct crustaceans in the order Lophogastrida containing at least two species. Peachocaris were small shrimp-like crustacean that lived in the shallow seas of the late Carboniferous (Pennsylvanian). The species Peachocaris strongi is found in the Mazon Creek fossil beds, a carboniferous lagerstätte in Illinois.

W

Cyclida is an order of fossil arthropods that lived from the Carboniferous to the Cretaceous. Their classification is uncertain, but they are generally treated as a group of maxillopod crustaceans.

W

Tesnusocaris goldichi is an extinct species of remipedian crustacean that lived in the Pennsylvanian period, the one of the two representatives of the extinct remipedian Order Enantiopoda. Its fossil is from the Lower Pennsylvanian Tesnus formation, Texas. The other known enantiopod remipedian is Cryptocaris hootchi of the Mazon Creek fauna.