Parapilekia cf. olesnaensis, from the Houston Museum of Natural Science.

Belongs within: Pilekiinae.

Parapilekia is a genus of trilobites known from the Early Ordovician of Eurasia and North America (Přibyl et al. 1985).

Characters (from Přibyl et al. 1985): Glabella becoming broadened transversely; glabellar furrow 3S shifted anteriorly, bifurcated or not; fixigenae becoming enlarged. Hypostome (where known) transversely broad, anterior wings shifted anteriorly. Median body elongate, with pair of medial furrows which almost meet in sagittal axis. Posterior border convex. Pygidium consisting of 4–5(+1) axial rings and four pairs of pleurae elongated into spines, arranged either parallel to sagittal axis or radially.

<==Parapilekia Kobayashi 1934 PVP85
    |--*P. speciosa (Dalman 1827) [=Protopliomerops speciosa] PVP85
    |--P. afghanensis (Wolfart 1970) PVP85
    |--P. anxia (Sdzuy 1955) PVP85
    |--P. bohemica (Růžička 1926) PVP85
    |--P. hunanensis Peng 1983 PVP85
    |--P. jacquelinae Fortey 1980 PVP85
    |--P. kasachstanica (Balashova 1961) PVP85
    |--P. nana Mergl 1984 PVP85
    |--P. olesnaensis (Růžička 1935) PVP85
    `--P. pliomeris (Demeter 1973) [=Rossaspis pliomeris] PVP85

*Type species of generic name indicated


[PVP85] Přibyl, A., J. Vaněk & I. Pek. 1985. Phylogeny and taxonomy of family Cheiruridae (Trilobita). Acta Universitatis Palackianae Olomucensis Facultas Rerum Naturalium Geographica-Geologica XXIV 83: 107–193.

No comments:

Post a Comment

Markup Key:
- <b>bold</b> = bold
- <i>italic</i> = italic
- <a href="">FoS</a> = FoS