Cyrtospiriferoidea

Partial brachial valve of Cyrtiopsis animasensis, from here.

Belongs within: Spiriferida.
Contains: Cyrtospirifer.

The Cyrtospiriferoidea are a group of Devonian spiriferids characterised by the presence of a delthyrial plate.

<==Cyrtospiriferoidea RG04
    |--Spinocyrtiidae [Guerichellinae, Spinocyrtiinae] RG04
    |    |--Acutatheca Stainbrook 1945 BJ65
    |    |    `--*A. propria Stainbrook 1945 BJ65
    |    |--Alatiformia Struve 1963 M65
    |    |    `--*A. alatiformis (Drevermann 1907) [=Spirifer alatiformis] M65
    |    |--Allanella Crickmay 1953 [=Allanaria Crickmay 1953] BJ65
    |    |    `--*A. allani (Warren 1944) [=Spirifer allani, *Allanaria allani] BJ65
    |    |--Chimaerothyris Paulus, Struve & Wolfart 1963 M65
    |    |    `--*C. hotzi Paulus, Struve & Wolfart 1963 M65
    |    |--Eosyringothyris Stainbrook 1943 BJ65
    |    |    `--*E. aspera (Hall 1858) [=Spirifera aspera] BJ65
    |    |--Subcuspidella Mittmeyer 1965 [incl. Tenuicostella] RG04
    |    |    |--*S. subcuspidata (Schnur 1851) [=Spirifer subcuspidatus] RG04
    |    |    `--S. incerta (Fuchs 1909) RG04
    |    |--Mediospirifer Bublichenko 1956 BJ65
    |    |    |--M. audacula (Conrad 1842) (see below for synonymy) BJ65
    |    |    `--M. mediotextus H79
    |    |--Spinocyrtia Frederiks 1916 [incl. Platyrachella Fenton & Fenton 1924] BJ65
    |    |    |--*S. granulosa (Conrad 1839) [=Delthyris granulosa] BJ65
    |    |    |--S. macbridei (Calvin 1883) [=Spirifera macbridei, *Platyrachella macbridei] BJ65
    |    |    |--S. marcyi N79
    |    |    `--‘Platyrachella’ mesastralis N79
    |    `--Adolfia Gürich 1909 (see below for synonymy) BJ65
    |         |--*A. deflexa (Roemer 1843) [=Spirifer deflexus, *Guerichella deflexa] BJ65
    |         |--‘Guerichella’ angustistellata BJ65
    |         |--A. bifida BJ65
    |         |--‘Spirifer (*Plectospirifer)’ heimi Grabau 1931 BJ65
    |         `--A. talasica H79
    `--Cyrtospiriferidae [Cyrtospiriferinae] BJ65
         |--Cyrtospirifer RG04
         |--Platyspirifer Grabau 1931 BJ65
         |    `--*P. paronai (Martelli 1902) [=Schizophoria paronai, Theodossia (*Platyspirifer) paronai] BJ65
         |--Tenticospirifer Tien 1938 BJ65
         |    `--*T. tenticulum (de Verneuil 1845) [=Spirifer tenticulum] BJ65
         |--Arctospirifer Stainbrook 1950 BJ65
         |    `--*A. constrictus Stainbrook 1950 BJ65
         |--Austrospirifer Glenister 1955 BJ65
         |    `--*A. variabilis Glenister 1955 BJ65
         |--Dmitria Sidyachenko 1961 BJ65
         |    `--*D. romanowskii (Nalivkin 1930) [=Spirifer (Cyrtospirifer) romanowskii] BJ65
         |--Prospira Maxwell 1954 BJ65
         |    `--*P. typa Maxwell 1954 BJ65
         |--Schizospirifer Grabau 1931 BJ65
         |    `--*S. latistriatus (Frech 1911) [=Spirifer aperturatus var. latistriatus] BJ65
         |--Sphenospira Cooper 1954 BJ65
         |    `--*S. alta (Hall 1866) [=Spirifera alta] BJ65
         |--Sulcatospirifer Maxwell 1954 BJ65
         |    `--*S. primus Maxwell 1954 BJ65
         |--Syringospira Kindle 1909 BJ65
         |    `--*S. prima Kindle 1909 BJ65
         |--Indospirifer Grabau 1931 BJ65
         |    `--*I. padaukpinensis (Reed 1908) [=Spirifer padaukpinensis] BJ65
         |         |--I. p. padaukpinensis BJ65
         |         `--I. p. maoerhchuanensis BJ65
         `--Cyrtiopsis Grabau 1923 (see below for synonymy) BJ65
              |--*C. davidsoni Grabau 1923 BJ65
              |--C. animasensis N79
              |--C. graciosa Grabau 1923 [=C. (*Grabauicyrtiopsis) graciosa] BJ65
              |--C. intermedia BJ65
              |--‘Uchtospirifer’ murchisonianus H79
              |--‘*Uchtospirifer’ nalivkini Lyashenko 1957 BJ65
              `--C. transversa Grabau 1931 [=C. (*Sinocyrtiopsis) transversa] BJ65

Adolfia Gürich 1909 [=Guerichella Paeckelmann 1931, Guerichia (l. c.); incl. Plectospirifer Grabau 1931] BJ65

Cyrtiopsis Grabau 1923 [incl. Alphacyrtiopsis Gatinaud 1949 (nom. vet.), Betacyrtiopsis Gatinaud 1949 (nom. vet.), Grabauicyrtiopsis Gatinaud 1949, Paracyrtiopsis Gatinaud 1949 (nom. vet.), Sinocyrtiopsis Gatinaud 1949, Uchtospirifer Lyashenko 1957] BJ65

Mediospirifer audacula (Conrad 1842) [=Delthyris audacula; incl. D. medialis Hall 1843, *Mediospirifer medialis] BJ65

*Type species of generic name indicated

REFERENCES

[BJ65] Boucot, A. J., J. G. Johnson, C. W. Pitrat & R. D. Staton. 1965. Spiriferida. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt H. Brachiopoda vol. 2 pp. H632–H728. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas Press: Lawrence (Kansas).

[H79] House, M. R. 1979. Devonian in the Eastern Hemisphere. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A183–A217. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[M65] Moore, R. C. (ed.) 1965. Treatise on Invertebrate Paleontology pt H. Brachiopoda vol. 2. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas Press: Lawrence (Kansas).

[N79] Norris, A. W. 1979. Devonian in the Western Hemisphere. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A218–A253. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[RG04] Racheboeuf, P. R., R. Gourvennec, M. Deynoux & D. Brice. 2004. The Devonian of the Hodh area (Islamic Republic of Mauritania): paleontology and stratigraphy. Journal of Paleontology 78 (1): 98–110.