Belongs within: Cytheroidea.
The Trachyleberidinae are a group of ostracods known from the Cretaceous to the present, characterised by valves bearing four adductor muscle scars in a near-vertical row, and a single J-, U- or heart-shaped frontal scar.
<==Trachyleberidinae [Trachyleberides, Trachyleberinae] LH61
|--Fissocythere Malz 1959 LH61
| `--*F. calloglypta Malz 1959 LH61
|--Quasibuntonia Ruggier 1958 LH61
| `--*Q. radiatopora (Seguenza 1880) [=Cythere radiatopora] LH61
|--Actinocythereis Puri 1953 M61, BB61
| `--*A. exanthemata (Ulrich & Bassler 1904) [=Cythere exanthemata] BB61
|--Anticythereis van den Bold 1946 M61, BB61 (see below for synonymy)
| `--*A. reticulata (Jennings 1936) [=*Pseudocythereis reticulata, *Stephensonaria reticulata] BB61
|--Pseudocythereis Skogsberg 1928 M61, BB61 [incl. Pseudocytheretta Puri 1958 non Cushman 1906 BB61]
| `--*P. spinifera (Skogsberg 1928) [=Cythereis (*Pseudocythereis) spinifera] BB61
|--Hirsutocythere Howe 1951 M61, BB61
| `--*H. hornotina Howe 1951 BB61
|--Leniocythere Howe 1951 M61, BB61
| `--*L. lebanonensis Hower 1951 BB61
|--Occultocythereis Howe 1951 M61, BB61
| `--*O. delumbata Howe 1951 BB61
|--Spongicythere Howe 1951 M61, BB61
| `--*S. spissa Howe 1951 BB61
|--Echinocythereis Puri 1954 M61, BB61
| |--*E. garretti (Howe & McGuirt 1935) [=Cythereis garretti] BB61
| `--E. dasyderma B61
|--Trachyleberidea Bowen 1953 M61, BB61
| |--*T. prestwichiana (Jones & Sherborn 1887) [=Cythereis prestwichiana] BB61
| `--T. aranea BB61
|--Protobuntonia Grekoff 1954 M61, BB61
| |--*P. numidica Grekoff 1954 BB61
| `--P. ioruba BB61
|--Trachyleberis Brady 1898 BB61 [incl. Trachyleberina M61]
| |--*T. scabrocuneata (Brady 1880) [=Cythere scabrocuneata] BB61
| `--T. asperrima S61a
| |--T. a. asperrima S61a
| `--T. a. echinata S61a
|--Cythereis Jones 1849 M61, BB61
| |--C. ornatissima (Reuss 1846) (see below for synonymy) BB61
| |--C. dallasensis S61b
| |--C. dentata S61a
| |--C. glauca B61
| |--C. senckenbergi Triebel 1940 WSB93
| `--C. tamzergoutensis RR03
`--Bradleya Hornibrook 1952 M61, BB61
|--*B. arata (Brady 1880) [=Cythere arata] BB61
|--B. approximata BB61
|--B. aurita B61
|--B. cornueliana S61a
|--B. diegoensis B61
|--B. haidingeri (Reuss 1849) [=Cypridina haidingeri; incl. Cythereis (Sacculus) trigibbosa Neviani 1928] BB61
`--B. pennata B61
Anticythereis van den Bold 1946 M61, BB61 [=Pseudocythereis Jennings 1936 non Skogsberg 1928 BB61, Stephensonaria Coryell in Stephenson 1946 BB61]
Cythereis ornatissima (Reuss 1846) [=Cytherina ornatissima; incl. Cytherina ciliata Reuss 1846, *Cythereis ciliata] BB61
*Type species of generic name indicated
REFERENCES
[B61] Benson, R. H. 1961. Ecology of ostracode assemblages. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt Q. Arthropoda 3: Crustacea: Ostracoda pp. Q56–Q63. Geological Society of America and University of Kansas Press.
[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.
[LH61] Levinson, S. A., & H. V. Howe. 1961. Addendum. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt Q. Arthropoda 3: Crustacea: Ostracoda pp. Q421–Q422. 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.
[RR03] Rossi, A., J. Rey, B. Andreu & K. Taj-Eddine. 2003. Apport des ostracodes à l’interprétation séquentielle du Crétacé inférieur (Berriasien–Valanginien) du bassin d’Essaouira-Agadir (Maroc). Comptes Rendus Palevol 2: 133–141.
[S61a] Scott, H. W. 1961a. 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.
[S61b] Scott, H. W. 1961b. Orientation of ostracode shells. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt Q. Arthropoda 3: Crustacea: Ostracoda pp. Q44–Q47. Geological Society of America and University of Kansas Press.
[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.