Type specimens of fossil " Architectibranchia " and Cephalaspidea (Mollusca, Heterobranchia) in the Academy of Natural Sciences of Philadelphia Author Cunha, Carlo M. Author Salvador, Rodrigo B. text Zoosystematics and Evolution 2018 94 2 505 527 http://dx.doi.org/10.3897/zse.94.27401 journal article http://dx.doi.org/10.3897/zse.94.27401 1860-0743-2-505 09EC3F78C68C4F9CA76D008DDAE13B3E Acteonella oviformis Gabb, 1869 Figure 3 M-N Acteonella oviformis Gabb, 1869: 173, 232, pl. 28, fig. 58. Type locality. Cottonwood Creek, Shasta County, California, USA; stratum: uncertain [either Shasta or Chico Formations]; age: Cretaceous. Type material. Holotype, ANSP IP4323 ( Stewart 1926 : 432, pl. 21, fig. 13; Richards 1968 : 168). Current taxonomic status. Acteonella oviformis Gabb, 1869 ( Anderson 1958 ).