Mucrospirifer mucronatus

Table of Contents

Scientific Classification


Kingdom: Animalia
Phylum: Brachiopoda
Class: Rhynchonellata
Order: Spiriferida
Family: Mucrospiriferidae
Genus: Mucrospirifer
Species: Mucrospirifer mucronatus (Conrad, 1841)

Information

Geological Range

Upper Devonian

Middle Devonian

Paleogeographic Distribution

Stratigraphic Occurrences

Genessee Group

Ithaca Formation

Penn Yan Formation

Lodi Member

Geneseo Formation

Hubbard Quarry Member

Fir Tree Member

Gilboa Formation

Hamilton Group

Tully Formation

Moscow Formation

Windom Member

Kashong Member

Tichenor Member

Ludlowville Formation

Jaycox Member

Wanakah Member

Ivy Point Member

Ledyard Member

Otisco Member

Centerfield Member

Mahantango Formation

Skaneateles Formation

Chenango Member

Butternut Member

Delphi Station Member

Levanna Member

Mottsville Member

Oatka Creek Formation

Cardiff Member

Traverse Group

Silica Formation

References

Conrad, 1841 (as Delthyris mucronatus)

Hall, 1843 (as Delthyris mucronatus): p. 198

Hall, 1867 (as Spirifer mucronata): p. 216, pl. 34

Schuchert, Charles, 1897, A synopsis of American fossil Brachiopoda, including bibliography and synonymy

Stumm, Erwin, 1958, Check List of Fossil Invertebrates Described from the Middle Devonian Rocks of the Thedford-Arkona Region of Southwestern Ontario

Wright, Jean, 1970, Devonian Strata of Alpena and Presque Isle Counties, Michigan

Ehlers, George, 1964, Variation in Species of Mucrospirifer from Middle Devonian Rocks of Michigan, Ontario, and Ohio

Kesling, Robert, 1975 (reprinted 2012), Strata and Megafossils of the Middle Devonian Silica Formation

Tillman, John, 1944, Index Fossils of North America

Chilman, Ruth, 1897, A synopsis of American fossil Brachiopoda, including bibliography and synonymy

Shimer, Hervey, 1958, Check List of Fossil Invertebrates Described from the Middle Devonian Rocks of the Thedford-Arkona Region of Southwestern Ontario

Shrock, Charles, 1970, Devonian Strata of Alpena and Presque Isle Counties, Michigan

Remarks

Originally described by Conrad (1841) as Delthyris mucronatus.

From Wilson (2014, p. 115): “Medium-sized shell, with hinge line extended, sometime into long ‘mucronate’ projections. Cardinal area narrow. Both valves moderately convex, with well-marked sinus and fold. Surface with distinct striae and growth lines. To 20-50 mm.”