Gabb’s California Cretaceous & Tertiary Type Lamellibranchs: Special Publications of The Acad. of Natural Sciences of Phila., No. 3Academy of Natural Sciences |
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Anderson and Hanna Arca Arnold Aucella Bull California cardinal Cardium Chico Group cited closely related Coalinga compared Conch Conrad Cossmann and Pissarro Cowlitz Crassatella Creek Cretaceous Dall Deshayes designated type Diablo Dickerson Diller Domengine dorsal Dosinia Eocene escutcheon figured specimen fossil Gabb Gabb's handwriting genera genus height hinge holotype Horizon hornii Inoceramus labelled Lamarck lectotype left valve Length ligamental Linné locality Lucina lunule margin Martesia Martinez Marysville Buttes matrix Miocene Modiolus Museum of Paleontology Neogene Oligocene original figure Ostrea Packard Paleocene Paleontology Pecten Phila planicosta Plate posterior preserved probably Publ Rep't ridge right valve San Diego sandstone seems shell Sowerby specimen figured Stanton Stoliczka subgenus synonym synonymy Tejón Tellina Trachycardium Trigonia type designation type species type specimen typical U. S. Geol U. S. Nat umbo umbonal Univ Venericardia ventral Venus Wash Whiteaves Yoldia
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Seite 36 - If an author, in publishing a genus with more than one valid species, fails to designate (see a) or to indicate (see b, d) its type, any subsequent author may select the type, and such designation is not subject to change. (Type by subsequent designation.) The meaning of the expression "select the type
Seite 152 - Roussillon, v. 2, 1892, p. 231, pi. 38 fig. 21-25) which has more distinct laterals and a shorter right cardinal enlarged anteriorly. Were it not for the similarity of Glyptoactis with some of the species of Venericardia ss I should place Glyptoactis under Glans but the resemblance may be fortuitous, and temporarily at least Glyptoactis is better left under Venericardia since it is difficult if not impossible at the present time to recognize the two groups among immature Eocene specimens. These specimens...
Seite 154 - An apparently new species is described from Yellow Bluff (Wilcox) which is believed to be related to V. horatiana rather than to V. planicosta and these two species are given a new section name Leuroactis.
Seite 205 - ten miles west of Griswolds, southeast of the Sheep Well, on the road from San Juan to New Idria.
Seite 302 - Rare in the Chico Group, near the Toll House at the summit of the Siskiyou Mountains, near the southern boundary of Oregon.
Seite 160 - While this difference is not very great, it indicates that V. pilsbryi is off the main stem of V. planicosta. The new section name Leuroactis is here proposed with V. pilsbryi as type species. V. horatiana and its Pacific relative V. aragonia are placed in this section because they have the straight right cardinal. While all the adult specimens of V. pilsbryi have the straight cardinal, the character is not so well marked on some of the large specimens of V. horatiana particularly when compared to...
Seite 44 - A List of Type Specimens in the Geological Museum of the University of California Which Have Served as Originals for Figures and Descriptions in the Palaeontology of the State Geological Survey of California under JD Whitney," Geological Department, University of California (1895), 3 pages.
Seite 43 - Report of Mr. TA Conrad on the fossil shells collected in California by Wm. P. Blake, geologist of the expedition under the command of Lieutenant RS Williamson, United States Topographical Engineers.
Seite 267 - Dall 1900 The genus Fragum is not known from American waters and apparently never reached the New World. Trigoniocardia Dall (1900, p. 1075) which was described as a section of the subgenus Fragum has a different hinge and is to be treated as a distinct genus. These two genera were considered related because of the prominent posterior umbonal slope present on both, but Fragum has the posterior laterals crowded toward the cardinals while Trigoniocardia has the anterior laterals crowded against the...
Seite 152 - Geol. v. 16, 1927, p. 283, pi. 37, fig. 1-2, 8-9). The hinge of Glyptoactis suggests the minute Mediterranean Glans Megerle 1811 (Bucquoy, Dautzenberg and Dollfus, Moll. Roussillon, v. 2, 1892, p. 231, pi. 38 fig. 21-25) which has more distinct laterals and a shorter right cardinal enlarged anteriorly. Were it not for the similarity of Glyptoactis with some of the species of Venericardia ss I should place Glyptoactis under Glans but the resemblance may be fortuitous, and temporarily at least Glyptoactis...