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Trypanoporida : ウィキペディア英語版 | Trypanoporida
Trypanoporida is an extinct order of encrusting animals from the Tentaculita class, which were common in the Devonian oceans (Weedon, 1991). Their affinity is unknown; they have been placed among worms and corals. They appear to be closely related to other taxa of uncertain affinity, including the microconchids, cornulitids and tentaculitids. Spirally coiled trypanoporids (Devonian) have most likely been derived from the geologically older microconchids (Upper Ordovician). ==References==
* Weedon, M.J. 1991. Microstructure and affinity of the enigmatic Devonian tubular fossil ''Trypanopora''. Lethaia 24:227-234.
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