Radulichnus

{{Short description|Trace fossil}}

{{Ichnobox

| fossil_range =

| image =

| image_caption =

| taxon = Radulichnus

| authority = Voigt, 1977

| type_ichnospecies = Radulichnus inopinatus

| type_ichnospecies_authority = Voigt, 1977

| subdivision_ranks = Ichnospecies

| subdivision_ref = {{cite journal|last1=Wisshak|first1=M.|last2=Knaust|first2=D.|last3=Bertling|first3=M.|year=2019|title=Bioerosion ichnotaxa: review and annotated list|journal=Facies|volume=65|issue=2|page=24|doi=10.1007/s10347-019-0561-8}}

| subdivision =

• R. inopinatus {{small|Voigt, 1977}}
• R. transversus {{small|Lopes & Pereira, 2018}}

}}

Radulichnus is an ichnogenus of trace fossil which resembles the marks produced by the action of a mollusc's radula on sediment. As an ichnogenus, its classification is based solely on appearance, and does not necessarily imply anything of the affinity of the organism which produced the trace.{{cite journal

| author = Butterfield, N.J.

| year = 2006

| title = Hooking some stem-group "worms": fossil lophotrochozoans in the Burgess Shale

| journal = BioEssays

| volume = 28

| issue = 12

| pages = 1161–6

| doi = 10.1002/bies.20507

| pmid = 17120226

| s2cid = 29130876

}} However, fossils of Kimberella have been found at or near the ends of Radulichnus traces, leading to the possibility that some traces were made by Kimberella.