Left (above) and right views of Cypridea granulosa, from Benson et al. (1961).

Belongs within: Cypridocopina.

The Ilyocyprididae are a group of freshwater ostracods known from the Triassic to the present (Benson et al. 1961).

Characters (from Benson et al. 1961): Shell subquadrate, compressed, thickest posteriorly, with one or more dorsomedian sulci; dorsum straight, venter straight to slightly concave, ends rounded, anterior broader; left valve larger than right; surface pitted, tuberculate or spinose. Inner lamellae rather narrow.

    |--Cyprideinae [Cyprideidae, Rostrocyprinae] BB61
    |    |--Cultella Lyubimova 1959 BB61
    |    |    `--*C. daedala Lyubimova 1959 BB61
    |    `--Cypridea Bosquet 1852 [incl. Cytherideis Jones 1856, Dsunbaina Galeeva 1955] BB61
    |         |--C. (Cypridea) BB61
    |         |    |--*C. (C.) granulosa (Sowerby 1836) [=Cypris granulosa] BB61
    |         |    |--C. (C.) propuncta BB61
    |         |    `--C. (C.) wyomingensis BB61
    |         |--C. (Cyamocypris Anderson 1939) BB61
    |         |    |--C. (*C.) valdensis (Fitton 1836) [=Cypris valdensis] BB61
    |         |    `--C. (C.) tumescens BB61
    |         |--C. (Morinina Anderson 1939) BB61
    |         |    `--C. (*M. ) dorsispinata (Anderson 1939) [=*Morinina dorsispinata] BB61
    |         |--C. (Paracypridea Swain 1946) BB61
    |         |    `--C. (*P.) obovata Swain 1946 BB61
    |         |--C. (Pseudocypridina Roth 1933) [incl. Langtonia Anderson 1939] BB61
    |         |    `--C. (*P.) piedmonti (Roth 1933) [=*Pseudocypridina piedmonti] BB61
    |         |--C. (Ulwellia Anderson 1939) BB61
    |         |    `--C. (*U.) menevensis (Anderson 1939) [=*Ulwellia menevensis] BB61
    |         `--C. (Yumenia Hou 1958) BB61
    |              `--C. (*Y.) oriformis (Hou 1958) [=*Yumenia oriformis] BB61
    `--Ilyocypridinae [Ilyocyprides, Ilyocyprinae, Jliocyprinae] BB61
         |--Cyprideamorphella Mandelstam 1956 BB61
         |    `--*C. tarbagataiensis Mandelstam 1956 BB61
         |--Iliocyprella Daday 1900 [=Ilyocyprella Sars 1925] BB61
         |    `--*I. repons (Vávra 1891) [=Ilyocypris bradyi var. repons] BB61
         |--Ilyocyprimorpha Mandelstam 1956 BB61
         |    `--*I. palustris Mandelstam 1956 BB61
         |--Pelocypris Klie 1939 BB61
         |    |--*P. lenzi Klie 1939 BB61
         |    `--P. zilchi BB61
         |--Rhinocypris Anderson 1940 [incl. Origoilyocypris Mandelstam 1956] BB61
         |    |--*R. jurassica (Martin 1940) [=Ilyocypris jurassica] BB61
         |    `--R. cirrita BB61
         `--Ilyocypris Bardy & Norman 1889 F08 (see below for synonymy)
              |--*I. gibba (Ramdohr 1808) [=Cypris gibba] BB61
              |--I. absentiva Fuhrmann 2008 F08
              |--I. aestivalis Fuhrmann 2008 F08
              |--I. bradyi Sars 1890 F08
              |--I. dentifera Sars 1903 NT02
              |--I. errabundoides NG13
              |--I. getica Masi 1906 F08
              |--I. lauta NG13
              |--I. tuberculata D01
              `--I. uncinatus F08

Ilyocypris Bardy & Norman 1889 F08 [=Iliocypris Daday 1900 BB61, Ilyocyprois Masi 1906 BB61, Jliocypris Müller 1900 BB61]

*Type species of generic name indicated


[BB61] Benson, R. H., J. M. Berdan, W. A. van den Bold, T. Hanai, I. Hessland, H. V. Howe, R. V. Kesling, S. A. Levinson, R. A. Reyment, R. C. Moore, H. W. Scott, R. H. Shaver, I. G. Sohn, L. E. Stover, F. M. Swain & P. C. Sylvester-Bradley. 1961. Systematic descriptions. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt Q. Arthropoda 3: Crustacea: Ostracoda pp. Q99–Q421. Geological Society of America and University of Kansas Press.

[D01] Daday, E. 1901. Édesvizi mikroszkópi állatok [Mikroskopische Süsswasserthiere]. In: Horváth, G. (ed.) Zichy Jenő Gróf Harmadik Ázsiai Utazása [Dritte Asiatische Forschungsreise des Grafen Eugen Zichy] vol. 2. Zichy Jenő Gróf Harmadik Ázsiai Utazásának Állattani Eredményei [Zoologische Ergebnisse der Dritten Asiatischen Forschungsreise des Grafen Eugen Zichy] pp. 375–470. Victor Hornyánszky: Budapest, and Karl W. Hierseman: Leipzig.

[F08] Fuhrmann, R. 2008. Die Ostrakoden- und Molluskenfauna des Auelehmprofils Zeitz (Landkreis Burgenland) und ihre Aussage zum Klima sowie zur Landnutzung im jüngeren Holozän Mitteldeutschlands. Mauritiana 20 (2): 253–281.

[NT02] Nakao, Y., & A. Tsukagoshi. 2002. Brackish-water Ostracoda (Crustacea) from the Obitsu River estuary, central Japan. Species Diversity 7 (1): 67–115.

[NG13] Ni, X., D. L. Gebo, M. Dagosto, J. Meng, P. Tafforeau, J. J. Flynn & K. C. Beard. 2013. The oldest known primate skeleton and early haplorhine evolution. Nature 498: 60–64.

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