Panlongia

Panlongia; Temporal range:
	Panlongia spinosa
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Artiopoda
Order:	Incertae sedis
Family:	Incertae sedis
Genus:	Panlongia; Liu et al., 2006
Species
	P. tetranodusa Liu et al. 2006; P. spinosa Liu et al. 2006;

Panlongia was a small-sized (up to 2 cm) marine arthropod, with an oval-shaped non-calcified exoskeleton. Both the head shield (or cephalon) and the tail shield (or pygidium) are semi-circular. In between the cephalon and pygidium are four thoracic body segments (somites). The cephalon occupies approximately ⅓ of the body length, the thorax ¼ and pygidium about 45%. Panlongia lived during the late Lower Cambrian (Botomian) in what is today South China. In Panlongia spinosa the edge of the exoskeleton carries several small sawtooth-like spines, that are absent in P. tetranodusa.^[1]

^ ^a ^b ^c Liu, Q.; Luo, H.-L.; Chen, L.-Z.; Lu, S.-X. (2006). "Panlongia, a new trilobitomorph genus from the Lower Cambrian, Kunming, Yunnan". Acta Palaeontologica Sinica. 45: 384–392.

[Liu_et_al._2006-1] Liu, Q.; Luo, H.-L.; Chen, L.-Z.; Lu, S.-X. (2006). "Panlongia, a new trilobitomorph genus from the Lower Cambrian, Kunming, Yunnan". Acta Palaeontologica Sinica. 45: 384–392.

[1]

Panlongia Temporal range:

Panlongia spinosa
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Artiopoda
Order:	Incertae sedis
Family:	Incertae sedis
Genus:	Panlongia Liu et al., 2006
Species
P. tetranodusa Liu et al. 2006^[1] P. spinosa Liu et al. 2006^[1]