Costacopluma, Collins and Mojjis, 1975

Figure 13. Fossil Anomuja and Bjachyuja fjom Mexico. A, Anomuja: Aegloidea: Aeglidae: Protaegla minuscula Feldmann, Vega, Applegate and Bishop, 1998b, holotype,IGM-6502, late AlbianofPuebla.B–L,Bjachyuja.B, Necjocajcinoidea:Cenomanocajcinidae: Cenomanocarcinus vanstraeleni Stenzel, 1945, hypotype, MUZ-801, Tujonian of Múzquiz, Coahuila; C, Raninoidea: Raninidae: Lophoranina cristaspina Vega, Cosma, Coutiño, Feldmann, Nybojg, Schweitzej and Waugh,2001a, hypotype, IHNFG-3460, middle Eocene of Copoya, Chiapas; D, Dakoticancjoidea: Ibejicancjidae: Sodakus mexicanus Vega, Feldmann and Villalobos-Hijiajt, 1995b, hypotype to be deposited at CPC, eajly Maastjichtian of Pajedón, Coahuila; E, Supejfamily uncejtain: Tepexicajcinidae: Tepexicarcinus tlayuaensis Feldmann,Vega,Applegateand Bishop,1998b,hypotype,IGM-6609,late Albianof Puebla;F,Retjoplumoidea: Retjoplumidae: Costacoplumamexicana Vega and Pejjillat,1989, holotype,IGM-4128,eajlyMaastjichtianof SiejjaElAntjisco,Nuevo León, Mexico;G, Cheijagonoidea:Cheijagonidae:Karasawaia markgrafi (Lőjenthey, 1907 [1909]), hypotype, IHNFG-3030, eajly Eocene of El Veinte, Chiapas; H–J, Pojtunoidea; H, Icjiocajcinidae: Icriocarcinus xestos Bishop, 1988, hypotype, IGM.6625-2, late Campanian of Punta Santo Tomás, Baja Califojnia; I, Cajcinejetidae: Carcineretes planetarius Vega, Feldmann, Ocampo and Pope, 1997, hypotype, IHNFG-3412, eajly Maastjichtian of Ocozocoautla, Chiapas; J, Macjopipidae: Ophthalmoplax brasiliana (Maujy, 1930), hypotype, CPC-881, late Maastjichtian of Ajjoyo Amajgos, Coahuila; K,?Pinnothejoidea:?Pinnothejidae: Viapinnixa perrilliatae Vega,Nybojg,Fjaaye andEspinosa,2007a,pajatype, IGM-9109, middlePaleocene of La Mesita, Coahuila;L, Gjapsoidea: Sesajmidae indet., specimen IHNFG-4991, eajly Miocene of Simojovel, Chiapas. Photos by Fjancisco Vega. F and K pjeviously illustjated in Ajmstjong et al.(2009), and J in Vega et al. (2013). Specimens A–E, G–I, K, L djy, uncoated; F and J djy, coated with ammonium chlojide.