Ogygopsis klotzi

Reconstruction of Ogygopsis klotzi（圖片來源：PaleoEquii，採用 CC BY-SA 4.0 授權）

Age

Cambrian（Wuliuan）

505 Ma

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Taxonomy

Kingdom: Animalia

Phylum: Arthropoda

Class: Trilobita

Order: Corynexochida

Family: Dorypygidae

Genus: Ogygopsis

Species: Ogygopsis klotzi

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Morphological description

Ogygopsis klotzi can reach a body length of up to 13 cm. Its overall outline is oval in shape, with a crescent-shaped cephalon. The thorax consists of eight segments. The pygidium is exceptionally large, exceeding the size of the cephalon. A pair of antennae is present.

Fossil specimen of Ogygopsis klotzi（圖片來源：Jonathan Chen，採用 CC BY-SA 4.0 授權）

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Etymology

Ogygia: from Greek mythology, referring to the seventh daughter of Amphion and Niobe

klotzi: a surname, honoring the donor of the fossil specimen

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Biological description

This species was discovered in the Burgess Shale of Canada, where it occurs in great abundance. It is interpreted as a benthic organism that moved across the seafloor, feeding on scattered organic particles. The larval stage may have been capable of swimming or drifting within the water column.

（Author: Bai Leng）

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References

1. HOFFMAN, H. J. AND R. L. PARSLEY. (1966). Antennae of Ogygopsis. Journal of Paleontology

2. RUDKIN, D. M. (2009). The Mount Stephen Trilobite Beds, p. 90-102. In J.-B. Caron and D. Rudkin (eds.), A Burgess Shale Primer - History, Geology, and Research Highlights. The Burgess Shale Consortium, Toronto.

51.26, -116.28

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