ammonites
Anchorhynchia grandis Shen and He 1994 (lamp shell)

Rhynchonellata - Rhynchonellida - Wellerellidae

Full reference: S. Z. Shen and X. L. He. 1994. Changhsingian brachiopod faunas from Guiding, Guizhou. Acta Palaeontologica Sinica 33:440-454

Belongs to Anchorhynchia according to S. Z. Shen and G. R. Shi 2007

Sister taxa: Anchorhynchia cimmerica, Anchorhynchia derongensis, Anchorhynchia ignobilis, Anchorhynchia madoensis, Anchorhynchia sarciniformis, Anchorhynchia subpentagona, Anchorhynchia wangenheimi

Type specimen: Its type locality is Wenjiangsi Section, Bed 45, Guiding County, which is in a Changhsingian carbonate limestone/mudstone in the Changxing Formation of China

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 18.0 x 26.5