Paleontology of the Greenhorn Cyclothem (Cretaceous: Late Cenomanian to Middle Turonian) at Black Mesa, Northeastern Arizona

Kirkland, J. I.

Publication Date: 1996

About this Item

Extensive invertebrate fossil collections from the Late Cretaceous (late Cenomanian - middle Turonian) Greenhorn cyclothem at Black Mesa in northeastern Arozona demonstrate that the thick clastic sequences of the western foreland basin preserve a much greater diversity of invertebrate fossils than that recognized from the carbonate-dominated central Western Interior Seaway. A total of 325 invertebrate taxa have been recognized in these strata, making this one of the most diverse middle Cretaceopus faunas known from North America. One new bivalve genus (Dakotacorbula n. gen.) is described and 11 new bivalve species (Modiolus kauffmani n. sp., Modiolus coloradoensis n. sp., Pinna kauffmani n. sp., Gervillia navajovus n. sp., Oxytoma (Hypoxytoma) arizonensis n. sp., Limatula kochi n. sp., Pycnodonte newberryi umbonata n. ssp., Gryphaeostrea nationsi n. sp., Gryphaeostrea elderi n. sp. Linearia (Hercodon) striatmarginata n. sp. Poromya lohaliensis n. sp.) and 12 new gastropod species (Euspira stantoni, Turritella cobbani, Turritella kauffmani, Turritella codellana n. sp., Anchura hopii n. sp., Cerithiopsis sohli n. sp., Cerithioderma elderi n. sp., Gyrotropis nationsi n. sp., Charonia soozi n. sp., Pyropsis kochi n. sp., Paleosephaea arizonensis, Acirsa kelseyi n. sp.) are described. Tellina carlilana is proposed as a new name for Tellina modesta, which was preoccupied. 131 pp. + 50 pls, br. 4.

Seller Inventory # W17600

Bibliographic Details

• Title: Paleontology of the Greenhorn Cyclothem (Cretaceous: Late Cenomanian to Middle Turonian) at Black Mesa, Northeastern Arizona
• Publication Date: 1996
• Binding: Soft cover