ammonites
Ramitubus increscens Liu et al. 2008

Ramitubus

Full reference: P. Liu, S. Xiao, C. Yin, C. Zhou, L. Gao and F. Tang. 2008. Systematic description and phylogenetic affinity of tubular microfossils from the Ediacaran Doushantuo Formation at Weng'an, south China. Palaeontology 51(2):339-366

Belongs to Ramitubus according to P. Liu et al. 2008

Sister taxon: Ramitubus decrescens

Type specimen: Its type locality is Datang Phosphorite Mine, Weng'an, which is in an Ediacaran marine phosphorite in the Doushantuo Formation of China