Yunnanellidae

Belongs within: Rhynchonellida.

The Yunnanellidae are a mostly Upper Devonian family of smooth or paucicostate brachiopods, with more questionable records from the Middle Devonian and Lower Mississippian (Ager et al. 1965).

Characters (Ager et al. 1965): Smooth or paucicostate, with subangular to angular costae on anterior part of shell or, axially, from beak; entire shell costellate or capillate; uniplicate, commissure coarsely serrate. Dental plates present; strong median septum supporting deep open septalium.

<==Yunnanellidae [Iunnanellidae, Junnanellidae, Yunnanellinae]AG65
    |--Yunnanella Grabau 1923 [=Junnanella Rzhonsnitskaya 1958, Junnanellina Rzhonsnitskaya 1958, Yunnanellina Grabau 1931]AG65
    |    `--*Y. hanburii (Davidson 1853) [=Rhynchonella hanburii, *Yunnanellina hanburii]AG65
    |--Ladogia Nalivkin 1941AG65
    |    |--*L. meyendorfii (de Verneuil 1845) [=Terebratula meyendorfii]AG65
    |    `--L. kakwaensisNU83
    |--Nayunnella Sartenaer 1961 [=Yunnanella Grabau 1931 non Grabau 1923]AG65
    |    `--*N. synplicata (Grabau 1931) [=*Yunnanella synplicata]AG65
    |--Paraphorhynchus Weller 1905 [=Paryphorhynchus Weller 1914]AG65
    |    `--*P. elongatum Weller 1905AG65
    |--Porostictia Cooper 1955AG65
    |    `--*P. perchaensis (Stainbrook 1947) [=Paraphorhynchus perchaensis]AG65
    |--Schnurella Schmidt 1964AG65
    |    `--*S. schnuri (de Verneuil 1840) [=Terebratula schnuri]AG65
    `--Eoparaphorhynchus Sartenaer 1961AG65
         |--*E. maclareni Sartenaer 1961AG65
         |--E. lentiformisN79
         `--E. walcottiN79

*Type species of generic name indicated

References

[AG65] Ager, D. V., R. E. Grant, D. J. McLaren & H. Schmidt. 1965. Rhynchonellida. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt H. Brachiopoda vol. 2 pp. H552–H632. 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).

[NU83] Norris, A. W., & T. T. Uyeno. 1983. Biostratigraphy and paleontology of middle-upper Devonian boundary beds, Gypsum Cliffs area, northeastern Alberta. Geological Survey of Canada Bulletin 313: 1–65.