Palaeolenus Guanshan Fauna Trilobite

with Preserved Antennae

Palaeolenus lanrnoisi

Trilobites Order Ptychopariida, Family Palaeolenidae

Geological Time: Early Cambrian (~520 million years ago)

Size (25.4 mm = 1 inch): Trilobite is 13 by 8 mm on a 45 mm by 32 mm matrix

Fossil Site: Chengjiang Maotianshan Shales - Guanshan Fauna, Lower most part of Wulongqing Formation (Caijiachong Section), Gangtoucun Village, Kunming City, Yunnan Province, China - Near and similar to the Chengjiang Biota

Code: CF406

Price: Sold


Description: This trilobite is a member of the Order Ptychopariida from what has been termed the “Guanshan Fauna”, found in the Wulongqing Formation. The Guanshan Fauna shares many genera with the slightly older Chengjiang Biota, but differs at the species level. The diversity of soft-tissue fossils from the Cjengjiang Biota is astonishing: algae, medusiforms, sponges, priapulids, annelid-like worms, echinoderms, arthropods (including trilobites), hemichordates, chordates, and the first agnathan fish make up just a small fraction of the total. Numerous problematic forms are known as well, some of which may have represented failed attempts at diversity that did not persist to the present day. This specimen shows soft tissue preservation; both antennae can be seen, with the right one complete.

Also see: Chengjiang Biota Fauna List Chengjiang Fossils

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