By Stefan Koenemann, Ronald Jenner
In comparison to different arthropods, crustaceans are characterised via an unheard of disparity of physique plans. usually, the specialization of arthropod segments and appendages into designated physique areas has served as a handy foundation for greater type; although, many relationships in the phylum Arthropoda nonetheless stay arguable. Can Crustacea also be thought of a monophyletic crew? if this is the case, then that are their closest kinfolk in the Arthropoda? The solutions to questions corresponding to those will play a key position in knowing styles and tactics in arthropod evolution, together with the disappearance of sure physique plans from the fossil list, in addition to incidences of transition from aquatic to terrestrial environments. Crustacea and Arthropod Relationships, written via a crew of the world over well-known specialists, offers a wide selection of viewpoints, whereas supplying an updated precis of contemporary development throughout a number of disciplines. With wealthy aspect and vibrancy, it addresses the evolution and phylogenetic relationships of the Arthropoda established upon molecular, developmental, morphological, and paleontological proof. quantity sixteen is the 1st within the sequence not to be completely devoted to discussions particular to crustaceans. whereas it's nonetheless crustaceo-centric, the concentration of this quantity has been prolonged to incorporate different teams of arthropods besides the Crustacea. This wider concentration deals hard possibilities to guage higher-level relationships in the Arthropoda from a carcinologic point of view. This quantity is devoted to the profession of Frederick R. Schram, the founding editor of CrustaceanIssues in 1983, in acceptance of his many stimulating and wide-ranging contributions to the evolutionary biology of arthropods quite often, and of crustaceans particularly.
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Extra info for Crustacea and Arthropod Relationships (Crustacean Issues)
De Angeli, A. 2003. Spinipalicus italicus, nuovo genere e specie di Palicidae (Crustacea, Decapoda) dell’Eocene del Vicentino (Italia settentrionale). Studi e Ricerche, Assoc. , Mus. civ. “G. Zannato”, Montecchio Maggiore (Vicenza), 2003: 7-12. Beurlen, K. 1928. Die fossilen Dromiaceen und ihre Stammesgeschichte. Paläontol. Zeitschr. 10: 144-183. Beurlen, K. 1930. Vergleichende Stammesgeschichte Grundlagen, Methoden, Probleme unter besonderer Berücksichtigung der höheren Krebse. Fortschr. Geol.
Stimpson, 1866 Eocene-Recent Ctenochelidae Manning & Felder, 1991 Upper Cretaceous-Recent Callianopsis de Saint Laurent, 1973 Eocene-Recent Ctenocheles Kishinouye, 1926 Upper Cretaceous-Recent crosses Chirostylidae Ortmann, 1892b Upper Cretaceous-Recent none Pristinaspina Schweitzer & Feldmann, 2000a Upper Cretaceous Eumunida Smith, 1883 Eocene-Recent Upogebiidae Borradaile, 1903 Jurassic-Recent 1 Upogebia Leach, 1814 Jurassic-Recent crosses Galatheidae Samouelle, 1819 Jurassic-Recent 3 Acanthogalathea Müller & Collins, 1991 Eocene Brazilomunida Martins-Neto, 2001 Lower Cretaceous Eomunidopsis Via, 1981 Jurassic-Upper Cretaceous Faxegalathea Jakobsen & Collins, 1997 Palaeocene Galathea Fabricius, 1793 Lower Cretaceous-Recent Gastrosacus von Meyer, 1851 Jurassic-Lower Cretaceous Lessinigalathea De Angeli & Garassino, 2002 Eocene Luisogalathea Karasawa & Hayakawa, 2000 Upper Cretaceous Mesogalathea Houša, 1963 Jurassic-Cretaceous Munida Leach, 1820 Palaeocene-Recent Munidopsis Whiteaves, 1874 Upper Cretaceous-Recent Munitheites LĘrenthey (in LĘrenthey & Beurlen 1929) Jurassic Palaeomunida LĘrenthey, 1902 Jurassic-Eocene Palaeomunidopsis Van Straelen, 1925 Jurassic Paragalathea Patrulius, 1960 Jurassic-Cretaceous Protomunida Beurlen, 1930 Palaeocene-Eocene Spathagalathea De Angeli & Garassino, 2002 Eocene 1 crosses crosses crosses 38 Schweitzer & Feldmann Table 5 continued.
Similarly, the Ctenochelidae display a gap between Cretaceous and Eocene records. Within the Aeglidae, there are two Cretaceous records and in the Micheleidae, there is one Cretaceous record; these are the only fossil records for these two extant families. These families were either refugium taxa or were protected by inhabiting a buffered habitat (Harries et al. 1996), because all four are known from temperate to high-latitude locations during the Cretaceous. High latitudes are hypothesized as having been less affected by the extinction event (Jablonksi 1996; Kauffman & Harries 1996).