''Marginifera'' is an

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

brachiopod Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, w ...

belonging to the order

Productida Productida is an extinct order of brachiopods in the extinct class Strophomenata. Members of Productida first appeared during the Silurian. They represented the most abundant group of brachiopods during the Permian period, accounting for 45-70% ...

. Specimens have been found in

Carboniferous The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carbonifero ...

Triassic The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period ...

beds in Asia, Europe, Madagascar, and North America.

Species

*''M. altimontana'' Sestini 1965 *''M. andreai'' Angiolini 1995 *''M. bicostala'' Lee and Gu 1980 *''M. brevisulcata'' Cooper 1957 *''M. carniolica'' Schellwien 1900 *''M. costellata'' Cooper 1957 *''M. elongatoides'' Zeng et al. 1995 *''M. ganota'' Grant 1993 *''M. gobiensis'' Chao 1927 *''M. haydenensis'' Girty 1903 *''M. hubeiensis'' Ni 1977 *''M. involuta'' Tschernyschew 1902 *''M. jalaidensis'' Lee and Gu 1980 *''M. juresanensis'' Tschernyschew 1902 *''M. lebedevi'' Tschernyschew 1902 *''M. longispina'' Sowerby 1814 *''M. madagascariensis'' Astre 1934 *''M. magniplicata'' Huang 1932 *''M. minor'' King 1931 *''M. morrisi'' Chao 1927 *''M. multicostellata'' Cooper 1957 *''M. nathorstfjordensis'' Dunbar 1955 *''M. nesiotes'' Grant 1976 *''M. orvini'' Frebold 1942 *''M. parahimalayensis'' Lee and Gu 1980 *''M. planocosta'' Easton 1962 *''M. popovkaensis'' Zavodowsky 1968 *''M. profundosulcata'' Cooper 1957 *''M. qaganqulutica'' Lee and Gu 1980 *''M. qamarensis'' Yanagida and Pillevuit 1994 *''M. rimuensis''Merla 1934 *''M. schartimiensiformis'' Lapina 1960 *''M. schellwieni'' Tschernyschew 1902 *''M. semigratiosa'' Reed 1927 *''M. septentrionalis'' Tschernyschew 1902 *''M.sexcostata'' Licharew 1937 *''M. spinulifera'' Campi and Shi 2007 *''M. tetraspina'' Lee and Duan 1985 *''M. timanica'' Tschernyschew 1902 *''M. unsulcata'' Li 1986 *''M. uralica'' Tschernyschew 1889 *''M. yanhuensis'' Sun 1991 *''M. zhongbaensis'' Jin and Sun 1981

References

Paleozoic life Productida {{Brachiopod-stub