Infraorder of crustaceans
Glypheidea is aninfraorder of lobster-likedecapod crustaceans , comprising a number offossil forms and the twoextant (living)genera Neoglyphea andLaurentaeglyphea :[ 1] The infraorder was thought to be extinct until a living species,Neoglyphea inopinata , was discovered in 1975. They are now considered "living fossils", with over 256 fossil species discovered, and just two extant species.[ 2]
Glypheidea belongs to theclade Reptantia within theorder Decapoda , although its exact placement within Reptantia is difficult to determine.[ 3] Somephylogenetic studies consider Glypheidea to be most closely related to the infraorderAstacidea , which consists of thelobsters andcrayfish ,[ 2] whereas other studies instead consider Glypheidea to be more closely related to the infraorderPolychelida , a group of deep-sea blind lobsters.[ 3]
Glypheoidea Winckler, 1882 † ErymoideaVan Straelen, 1924 †Erymidae Van Straelen, 1924 †Clytiella Glaessner, 1931 †Clytiopsis Bill, 1914 †Enoploclytia M'Coy, 1849 †Eryma von Meyer, 1840 †Galicia Garassino & Krobicki, 2002 †Lissocardia von Meyer, 1851 †Palaeastacus Bell, 1850 †Paraclytiopsis Oravec, 1962 †Protoclytiopsis Birshtein, 1958 †Pustulina Quenstedt, 1857 †Stenodactylina Beurlen, 1928 ^ Sammy De Grave; N. Dean Pentcheff; Shane T. Ahyong; et al. (2009)."A classification of living and fossil genera of decapod crustaceans" (PDF) .Raffles Bulletin of Zoology . Suppl. 21:1– 109. Archived fromthe original (PDF) on 2011-06-06. ^a b Heather D. Bracken-Grissom; Shane T. Ahyong; Richard D. Wilkinson; Rodney M. Feldmann; Carrie E. Schweitzer; Jesse W. Breinholt; Matthew Bendall; Ferran Palero; Tin-Yam Chan; Darryl L. Felder; Rafael Robles; Ka-Hou Chu; Ling-Ming Tsang; Dohyup Kim; Joel W. Martin; Keith A. Crandall (July 2014)."The Emergence of Lobsters: Phylogenetic Relationships, Morphological Evolution and Divergence Time Comparisons of an Ancient Group (Decapoda: Achelata, Astacidea, Glypheidea, Polychelida)" .Systematic Biology .63 (4):457– 479.doi :10.1093/sysbio/syu008 .PMID 24562813 . ^a b Wolfe, Joanna M.; Breinholt, Jesse W.; Crandall, Keith A.; Lemmon, Alan R.; Lemmon, Emily Moriarty; Timm, Laura E.; Siddall, Mark E.; Bracken-Grissom, Heather D. (24 April 2019)."A phylogenomic framework, evolutionary timeline and genomic resources for comparative studies of decapod crustaceans" .Proceedings of the Royal Society B .286 (1901).doi :10.1098/rspb.2019.0079 .PMC 6501934 .PMID 31014217 .