Cyclolorenzella

Holaspid cranidia of Cyclolorenzella sp., from Hong et al. (2003).

Belongs within: Ptychopariida.

Cyclolorenzella is a genus of trilobites known from the upper Middle Cambrian of Asia. Members of this genus have a convex preglabellar boss and small palpebral lobes at glabellar mid-length (Hong et al. 2003).

<==Cyclolorenzella Kobayashi 1960 [Diceratocephalidae] HLC03
    |--*C. quadrata (Kobayashi 1935) [=Lorenzella quadrata] HLC03
    |--C. acalle (Walcott 1905) HLC03
    |--C. caijiapingensis Yang 1978 HLC03
    |--C. convexa (Resser & Endo 1937) HLC03
    |--C. hebeiensis Wittke & Zhu in Zhu & Wittke 1989 HLC03
    |    |--C. h. hebeiensis HLC03
    |    `--C. h. tangshanensis Wittke & Zhu in Zhu & Wittke 1989 HLC03
    |--C. humilis Zhang in Qiu et al. 1983 HLC03
    |--C. kushanensis (Chu 1959) HLC03
    |--C. latisulcata Zhang in Qiu et al. 1983 HLC03
    |--C. longispinosa Wittke & Zhu in Zhu & Wittke 1989 HLC03
    |--C. parabola (Lu 1957) HLC03
    |--C. paraconvexa Yang 1978 HLC03
    |--C. pustulosa (Chu 1959) HLC03
    |--C. regularis (Walcott 1906) HLC03
    |--C. subcylindrica (Chu 1959) HLC03
    |--C. tonkinenensis (Mansuy 1916) HLC03
    |--C. tuma Yang 1978 HLC03
    |--C. uniforma Wittke & Zhu in Zhu & Wittke 1989 HLC03
    `--C. yentaiensis (Chu 1959) HLC03

*Type species of generic name indicated

REFERENCES

[HLC03] Hong, P. S., J. G. Lee & D. K. Choi. 2003. Trilobites from the Lejopyge armata zone (upper Middle Cambrian) of the Machari Formation, Yongwol Group, Korea. Journal of Paleontology 77 (5): 895–907.