ammonites
Spiriferellina orientalis Frech 1911 (lamp shell)

Rhynchonellata - Spiriferinida - Spiriferellinidae

Alternative combinations: Genuspirifer orientalis, Spiriferina orientalis

Synonyms: Genuspirifer tongluensis Liang 1990, Metriolepis asiatica Liang 1990, Metriolepis pollostosa Liang 1990, Punctospirifer shenzhouensis Liang 1990

Full reference: F. Frech. 1911. Die Dyas in Süd-Yünnan, Tongking, Laos und Burmah. China: Ergebnisse Eigener Reisen und Darauf Gegründeter Studien 5:149-161

Belongs to Spiriferellina according to M. E. Clapham 2011

Sister taxa: Spiriferellina aduncata, Spiriferellina aequiplicata, Spiriferellina altiplecusformis, Spiriferellina anguliplica, Spiriferellina bilotensis, Spiriferellina cambodgiensis, Spiriferellina cristata, Spiriferellina discoformis, Spiriferellina disparata, Spiriferellina elegantula, Spiriferellina enteleteformis, Spiriferellina hilli, Spiriferellina hochuanensis, Spiriferellina lacunosa, Spiriferellina lata, Spiriferellina nasuta, Spiriferellina nasuta, Spiriferellina netschajewi, Spiriferellina nuda, Spiriferellina paucicostata, Spiriferellina pauciplicata, Spiriferellina pokrowskensis, Spiriferellina quadriplicata, Spiriferellina quantula, Spiriferellina rouxi, Spiriferellina tareica, Spiriferellina tricosa, Spiriferellina triquetra, Spiriferellina vercherei, Spiriferellina vescula, Spiriferellina yanagidai, Spiriferellina zewanensis

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 9.79 x 14.91, valve 14.2 x 19.1