MolluscaBase source details
Ladd, H.S. (1958). Fossil land shells from western Pacific atolls. Journal of Paleontology. 32(1): 183-198.
382064
Ladd, H.S.
1958
Fossil land shells from western Pacific atolls
Journal of Paleontology
32(1): 183-198
Publication
Available for editors 
[request]
[request]
Date
action
by
Ptychodon eniwetokensis Ladd, 1958 † accepted as Vatusila eniwetokensis (Ladd, 1958) † (original description)
Ptychodon inexpectans Ladd, 1958 † accepted as Minidonta inexpectans (Ladd, 1958) † (original description)
Ptychodon subpacificus Ladd, 1958 † accepted as Cookeconcha subpacifica (Ladd, 1958) † (original description)
Ptychodon inexpectans Ladd, 1958 † accepted as Minidonta inexpectans (Ladd, 1958) † (original description)
Ptychodon subpacificus Ladd, 1958 † accepted as Cookeconcha subpacifica (Ladd, 1958) † (original description)
Bikini for Ptychodon inexpectans Ladd, 1958 †
Bikini for Ptychodon subpacificus Ladd, 1958 †
Eniwetok Atoll for Ptychodon eniwetokensis Ladd, 1958 †
Bikini for Ptychodon subpacificus Ladd, 1958 †
Eniwetok Atoll for Ptychodon eniwetokensis Ladd, 1958 †
Holotype USNM 562088, geounit Bikini, identified as Ptychodon inexpectans Ladd, 1958
Holotype USNM 562090, geounit Funafuti, identified as Ptychodon subpacificus Ladd, 1958
Holotype USNM 562091, geounit Eniwetok Atoll, identified as Ptychodon eniwetokensis Ladd, 1958
Holotype USNM 562090, geounit Funafuti, identified as Ptychodon subpacificus Ladd, 1958
Holotype USNM 562091, geounit Eniwetok Atoll, identified as Ptychodon eniwetokensis Ladd, 1958
Type locality
"In limestone cuttings of upper Miocene (Miocene g) from drill hole K-1B on the island of Engebi, Eniwetok Atoll, ... [details]
Type locality
"In limestone cuttings from Drill Hole 2A on Bikini Island, Bikini Atoll, Marshall Islands at a depth of 447 to 453 ... [details]
Type locality
"In cuttings from drill hole 2B on Bikini Atoll at a depth of 1807 to 1818 feet; age lower Miocene (Miocene e)" [details]
