Acanthinopus
{{Short description|Extinct genus of crustaceans}}
{{Taxobox
| fossil_range = {{fossil_range|Norian}}
| regnum = Animalia
| phylum = Arthropoda
| subphylum = Crustacea
| classis = Malacostraca
| ordo = Decapoda
| infraordo = Caridea
| familia = incertae sedis
| genus = Acanthinopus
| genus_authority = Pinna, 1974
| species = A. gibbosus
| binomial = Acanthinopus gibbosus
| binomial_authority = Pinna, 1974
}}
Acanthinopus gibbosus is an extinct species of shrimp placed in its own genus, Acanthinopus, which has not been assigned to a family.{{cite journal|journal=Raffles Bulletin of Zoology |year=2009 |volume=Suppl. 21 |pages=1–109 |title=A classification of living and fossil genera of decapod crustaceans |author1=Sammy De Grave |author2=N. Dean Pentcheff |author3=Shane T. Ahyong |url=http://rmbr.nus.edu.sg/rbz/biblio/s21/s21rbz1-109.pdf |display-authors=etal |url-status=dead |archiveurl=https://web.archive.org/web/20110606064728/http://rmbr.nus.edu.sg/rbz/biblio/s21/s21rbz1-109.pdf |archivedate=2011-06-06 }} It was found in Norian (Upper Triassic) sediments of the Zorzino Limestone in northern Italy.{{cite journal |journal=Journal of Paleontology |volume=77 |issue=3 |pages=589–592 |year=2003 |doi=10.1666/0022-3360(2003)077<0589:PANSCD>2.0.CO;2 |author1=Alessandro Garassino |author2=Sergio Bravi |title=Palaemon antonellae new species (Crustacea, Decapoda, Caridea) from the lower Cretaceous "Platydolomite" of Profeti (Caserta, Italy)}}