ammonites
Orbicoelia speciosa Wang 1955 (lamp shell)

Rhynchonellata - Spiriferida - Ambocoeliidae

Alternative combinations: Crurithyris speciosa, Speciothyris speciosa

Synonym: Crurithyris huadongensis Liang 1990

Belongs to Orbicoelia according to Z. Q. Chen 2006

Sister taxa: Orbicoelia cordata, Orbicoelia dolomitensis, Orbicoelia elongatiformis, Orbicoelia extima, Orbicoelia flabelliformis, Orbicoelia fraterculus, Orbicoelia guadalupensis, Orbicoelia inflata, Orbicoelia magna, Orbicoelia pusilla, Orbicoelia tholiaphor, Orbicoelia tschernyschewi, Orbicoelia tumibilis

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 9.24 x 10.35, valve 8.72 x 9.89