Helcionella

{{Short description|Extinct genus of molluscs}}

{{Automatic taxobox

| fossil_range = Cambrian

| taxon = Helcionella

| authority = Grabau & Shimer, 1909

| synonyms= Pseudotheca Redlich 1899

| subdivision = {{species list

| H. bella |Feng et al.

| H. emargina|Cobbold, 1919

| H. histosia|Jacquet & Brock, 2016

| H. oblonga |Cobbold, 1921

| incomplete = yes}}

}}

Helcionella is a genus of helcionellid, a fossil marine invertebrate animal that is considered to be a mollusk and may possibly be a gastropod. The shells of these animals are about a centimetre in size. The tip of the shell extends beyond the rear extremity of the shell's aperture, and the shell is "endogastric" in shape.{{Cite journal | last1 = Cobbold | first1 = E. S. | title = I.—Cambrian Hyolithidæ, etc., from Hartshill in the Nuneaton District, Warwickshire | journal = Geological Magazine | volume = 6 | pages = 149–158 | year = 1919 | doi = 10.1017/S0016756800202483 }}

Helcionella is the type genus of the family Helcionellidae.