Eurychilinidae

Uhakiella kohtlensis, from Geoscience Collections of Estonia.

Belongs within: Ostracoda.

The Eurychilinidae are a group of ostracods known from the Ordovician to the Devonian (Benson et al. 1961).

Characters (from Benson et al. 1961): Straight-hinged, unisulcate or with pit, marginal frill or velate structure, commonly showing dimorphic variations but females lacking domiciliar pouch.

<==Eurychilinidae [Eurychilininae] BB61
    |–Hlubocepina Přibyl 1955 (n. d.) M61, BB61
    |–Apatochilina Ulrich & Bassler 1923 BB61
    |    `–*A. obesa (Ulrich 1890) [=Eurychilina obesa] BB61
    |–Coelochilina Ulrich & Bassler 1923 BB61
    |    `–*C. aequalis (Ulrich 1890) [=Eurychilina aequalis] BB61
    |–Tsitrella Sarv 1959 BB61
    |    `–*T. lamina Sarv 1959 BB61
    |–Novakina Bouček 1936 (n. d.) M61, BB61
    |    `–*N. applanans Bouček 1936 BB61
    |–Trubinella Přibyl 1949 (n. d.) M61, BB61
    |    `–*T. latens (Barrande 1872) [=Hippa latens] BB61
    |–Pyxiprimitia Swartz 1936 (n. d.) M61, BB61
    |    `–*P. ventriclefta Swartz 1936 BB61
    |–Bicornellina Zaspelova 1952 ZL87
    |    |–*B. bolchovitinovae Zaspelova 1952 ZL87
    |    `–B. pulchra Zhang in Zhang & Liang 1987 ZL87
    |–Eurychilina Ulrich 1899 [incl. Actinochilina Jaanusson 1957] BB61
    |    |–*E. reticulata Ulrich 1889 BB61
    |    `–E. papillata BB61
    |–Euprimites Hessland 1949 BB61
    |    |–*E. reticulogranulata Hessland 1949 BB61
    |    `–E. effusus S61
    |–Laccoprimitia Ulrich & Bassler 1923 BB61
    |    |–*L. centralis (Ulrich 1890) [=Primitia centralis] BB61
    |    `–L. ventroturgida BB61
    |–Laccochilina Hessland 1949 [incl. Eobromidella Harris 1957, Prochilina Jaanusson 1957] BB61
    |    |–*L. estonula (Öpik 1935) [=Eurychilina estonula] BB61
    |    |–L. decumana TM02
    |    `–L. dorsoplicata BB61
    `–Uhakiella Öpik 1937 WSB93, BB61
         |–*U. coelodesma Öpik 1937 BB61
         |–U. jonesiana (Schmidt 1941) WSB93
         `–U. kohtlensis BB61

*Type species of generic name indicated

REFERENCES

[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.

[M61] Moore, R. C. 1961. Supplement—USSR treatise on Ostracoda. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt Q. Arthropoda 3: Crustacea: Ostracoda pp. Q422–Q429. Geological Society of America and University of Kansas Press.

[S61] Scott, H. W. 1961. Shell morphology of Ostracoda. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt Q. Arthropoda 3: Crustacea: Ostracoda pp. Q21–Q37. Geological Society of America and University of Kansas Press.

[TM02] Tinn, O., & T. Meidla. 2002. An enigmatic early ?palaeocope ostracode from the Arenig of NW Russia. Acta Palaeontologica Polonica 47: 685–690.

[WSB93] Whatley, R. C., D. J. Siveter & I. D. Boomer. 1993. Arthropoda (Crustacea: Ostracoda). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 343–356. Chapman & Hall: London.

[ZL87] Zhang X.-J. & Liang X.-Y. 1987. Ostracoda from the Taiyuan Formation of Xingyang and Gong Xian districts, Henan. Acta Micropalaeontologica Sinica 4 (3): 293–312.

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