This a gregarious brachiopod is known as Longtancunella chengjiangensis.
While it is occasionally found as a single specimen, most seen are
groupings conjoined at the pedicle. The source of the specific name
is easy to determine.
diversity of soft-tissue fossils 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
is a widespread Cambrian lingulid brachiopod, also found in the
Burgess Shale. Specimens from that locality do not typically show
soft tissue preservation such as the pedicle seen here. While it
may have led a burrowing existence like modern-day lingulids, the
fact that most have been found attached to others of its type is
indicative of an epibenthic lifestyle. This species has been reported
from both Chengjiang and Haikou locales, but remains a rare specimen.
This specimen comes from Maotianshan (Mao Tian Hill), the site of
the original discovery of the Chengjiang Biota.
Z-F., Shu D-G., Han J. & Liu J-N. 2007: A gregarious lingulid
brachiopod Longtancunella chengjiangensis from the Lower Cambrian,
South China. Lethaia, Vol. 40, pp. 11–18.
see: Chengjiang Biota Chengjiang