Assortment of Hollinella specimens, from here.

Belongs within: Ostracoda.

The Hollinidae are a family of distinctly dimorphic ostracods known from the Middle Ordovician to the Middle Permian (Benson et al. 1961).

Characters (from Benson et al. 1961): Carapace slightly inequivalved, with overlap of left valve on right valve, mostly with strongly developed lobation, including bi-, tri- and quadrilobate types. L3 large and bulbous in many genera; velar structures more or less prominent, restricted to anterior and ventral parts of free bords. Hinge line straight, hingement consisting of subtriangular pits or furrows at ends of left valve hinge for reception of corners of right valve. Dimorphism distinct, shown primarily by form of velar structures. Surface commonly papillate.

    |--Arikloedenia inagna WSQ86
    |--Hanaites Pokorny 1950 WSQ86
    |    `--H. platus (Kesling & McMillan 1951) [=Proplectrum platum] WSQ86
    |--Gortanella Ruggieri 1966 HM04
    |    |--G. longispina (Jones & Kirby 1886) (see below for synonymy) HM04
    |    `--G. ruggierii Olempska 1999 HM04
    |--Jordanites ZL87
    |    |--J. honeei Bless 1972 ZL87
    |    `--J. rawihinggili Bless 1972 ZL87
    |--Adelphobolbina Stover 1956 WSQ86
    |    |--A. megalia WSQ86
    |    |--A. pinguis WSQ86
    |    `--A. striatoreticulata Shi in Wang, Shi & Qu 1986 WSQ86
    `--Hollinella Coryell 1928 ZL87
         |--H. (Hollinella) ZL87
         |    |--H. (H.) cristinae Bless 1972 ZL87
         |    |--H. (H.) spinulosa ZL87
         |    `--H. (H.) ulrichi ZL87
         `--H. (Keslingella Bless & Jordan 1970) ZL87
              |--H. (K.) bicornuta Zhang in Zhang & Liang 1987 ZL87
              |--H. (K.) radiata (Bless 1972) ZL87
              `--H. (K.) spinigera ZL87

Gortanella longispina (Jones & Kirby 1886) [=Beyrichia longispina, Hollina longispina, Hollinella longispina; incl. Hollina stephanori Batalina 1926] HM04

*Type species of generic name indicated


Benson, R. H., J. M. Berdan et al. 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.

[HM04] Hoare, R. D., & G. K. Merrill. 2004. A Pennsylvanian (Morrowan) ostracode fauna from Texas. Journal of Paleontology 78 (1): 185-204.

[WSQ86] Wang C.-Y., Shi C.-G. & Qu G.-S. 1986. Conodonts and ostracodes from the Devonian “Heitai Formation” of Mishan County, Heilongjiang Province. Acta Micropalaeontologica Sinica 3 (2): 205-214.

[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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