Panlongia

Panlongia
Temporal range: lowest Botomian
↓
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]

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]

  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.