Squires—Northeast Pacific Oniscidia
Table 1. Age and geographic distribution of fossil Oniscidia species. Species
Age
LATE CRETACEOUS ? costellata Stoliczka, 1867
PALEOCENE plectata Waring, 1917
cf. antiqua Bayan of Woodring, 1959 chiraensis Olsson, 1931 claibornensis Garvie, 2013
EOCENE antiquissima Martin, 1914 antiqua Bayan, 1870
corrugata Clark in Clark and Durham, 1946 dolioides Olsson, 1931
? maccormaki Olsson, 1928 peruviana Olsson, 1931
scotlandia Trechmann, 1925 sp. Woodring, 1959
? cf. subtenuilamella d’Archiac and Haime of Cossmann and Pissarro, 1927
OLIGOCENE “barrandei” Deshayes of Boettger, 1875 dunkeri Speyer, 1862
harpaformis Powell and Bartrum, 1929 harpula Conrad, 1848
? neglecta Michelotti, 1861 sp. of Beu and Maxwell, 1990
MIOCENE chipolana Maury, 1925
PLIOCENE macgintyi Smith, 1937 meganae Raymond, 1997
tampana Mansfield, 1937 variolosa Grateloup, 1834
harpaeforme Grateloup, 1827 harrisi Maury, 1925 jungi Landau, 1996 quilonica Dey, 1961
domingense Sowerby, G.B., III, 1850 finlayi Laws, 1932
cf. chipolana Maury of Woodring, 1970 coxi Trechmann, 1935 cythara Brocchi, 1814
Campanian late early to early middle Paleocene
late middle Eocene late Eocene latest Eocene late Eocene late Eocene
middle Eocene middle? Eocene late Eocene late Eocene
middle Eocene middle Eocene earliest Eocene
Oligocene late Oligocene
late Oligocene–early Miocene early to “mid” Oligocene early Oligocene
late Oligocene–early Miocene early Miocene early Miocene
early middle Miocene early to middle Miocene late Miocene–early Pliocene early Miocene Miocene
early Miocene early Miocene early Miocene early Miocene early Miocene
PLEISTOCENE cancellata Sowerby, G.B., I, 1825 macandrewi Sowerby, G.B., III, 1889 obrienae Olsson and Petit, 1964
middle Pliocene late Pliocene
early Pleistocene–Holocene Late Pleistocene–Holocene early Pleistocene–Holocene
Symbol: ? = tentative assignment of species to Oniscidia.
Furon in Furon and Kouriatchy (1948, p. 107, pl. 9, figs. 8, 9) reported “Oniscia” chavani from Paleocene (Danian) deposits found in Togo and Ivory Coast of West Africa. Chabaglian (1959, p. 152, pl. 2, figs. 3, 4) also reported this small-sized species (~20 mm height) from Paleocene deposits in Senegal, Africa. Merle and Pacaud (2004, p. 84) assigned chavani to Morum, but chavani has neither the diagnostic tubular/cylindrical shape nor the nodular spiral bands of Morum. Furon’s species differs from an Oniscidia by having round-shouldered whorls, a narrower and much longer pillar, very weak axial ribs, much less twisted anterior part of the columella, and very close spacing of thin axial ribs. Furon’s species resembles Eocithara (Refluharpa) lamellifera (Tate,
Reports of early Paleocene ‘harpids’ are extremely rare.
1889, p. 149, pl. 6, fig. 2; Rehder, 1973, p. 235, pl. 207, figs. a–f) from middle Miocene beds at Muddy Creek, southern Australia.
specimens, one of which is incomplete, of what he identified as Oniscidia sp. aff. O. chavani (Furon) from Paleocene deposits
Adegoke (1977, p. 208, pl. 31, figs. 21, 22) illustrated two
in Nigeria, West Africa. Adegoke’s specimens differ from an Oniscidia by having a round-shouldered last whorl, much narrower and more constrained inner lip, and no indication of an outer lip varix. His assessment that his specimens resemble strongly a pseudolivine gastropod is correct, even though a pseudolivine groove is not discernable. Reports of two additional species are not included in
Table 1. One is Morum (Herculea) caracole (Anderson, 1928) of late Eocene age from Columbia. It is a nomen dubium because of its very poor preservation. The second species is Morum (Herculea) charanalense Olsson, 1931 of early Oligocene age from Peru. It is most likely an Eocithara.
Oniscidia plectata (Waring, 1917) n. comb. Figure 3.1–3.15
1917 Ficus plectatus Waring, p. 83, pl. 12, fig. 8. 1989 Harpa n. sp. Paredes-Mejia, p. 363, pl. 15, figs. 13–16.
1988 Harpa n. sp. Zinsmeister and Paredes-Mejia, pl. 2, figs. 16, 17.
797
Location southern India
southern California and northern Baja California
Java
northern Italy Panama
southeastern Texas northern Columbia northern Peru northern Peru northern Peru
northern Peru southern Pakistan
Caribbean (Barbados) Panama
southeastern Boreno Germany
New Zealand Mississippi
northern Italy New Zealand
Panama
northern Florida, Caribbean (Dominican Republic)
northern Europe Brazil
Caribbean (Domincan Republic) New Zealand
Caribbean (Carriacou) northern Europe
Caribbean (Venezuela) southern India southern Florida northern Europe
southern Florida southern Florida
western Pacific western Pacific southern Florida
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