• Corpus ID: 135240737

Variation in the Genus Orthaulax (Mollusca: Gastropoda)

@article{Vokes2017VariationIT,
  title={Variation in the Genus Orthaulax (Mollusca: Gastropoda)},
  author={Harold Ernest Vokes and Emily H. Vokes},
  journal={Tulane Studies in Geology and Paleontology},
  year={2017},
  volume={6}
}
A study of approximately 750 specimens of Orthaulax gabbi Dall, from the Chipola Formation of northwestern Florida, reveals a high degree of variation in the spire height, spire angle, and nature of the cross-sectional outline of the shell. As these characteristics are the criteria upon which new species have been distinguished in the past it is probable that several of the existing taxa, if adequately known, would be found to be synonyms. The eleven described species of Orthaulax are listed… 
Califrapana: a new genus of California and Bája California late Oligocene to early Miocene muricids previously attributed to the genus Rapana (Mollusca: Gastropoda: Muricidae)
Author(s): Powell, II, Charles L.; Houart, Roland | Abstract: Califrapana n. gen., is proposed for California late Oligocene to early Miocene muricids attributed previously to the possibly Paleocene
Diversity and preserved shell coloration patterns of Miocene Conidae (Neogastropoda) from an exposure of the Gatun Formation, Colón Province, Panama
  • J. Hendricks
  • Biology, Environmental Science
    Journal of Paleontology
  • 2018
TLDR
The phylogenetic diversity of the assemblage is noteworthy: six of the ten species can be confidently assigned to six different clades of extant Conidae, providing potentially useful calibration points for future phylogenetic studies.
TULANE STUDIES IN GEOLOGY AND pALEONTOLOGY
In an attempt to prove that mollusks may be used for inte r-formational correlation, a study was undertaken to ascertain the age of the shallow-water Baitoa Formation, which has proved barren of
Glowing Seashells: Diversity of Fossilized Coloration Patterns on Coral Reef-Associated Cone Snail (Gastropoda: Conidae) Shells from the Neogene of the Dominican Republic
The biology of modern Conidae (cone snails)—which includes the hyperdiverse genus Conus—has been intensively studied, but the fossil record of the clade remains poorly understood, particularly within
Early Pliocene gastropod diversity from the central eastern Pacific Ocean, Mexico (Guerrero) and their paleogeographical interpretation
We report on an early Pliocene marine gastropod assemblage from Guerrero State, Mexico. Sixty-three gastropod species were identified and used to interpret their paleogeographic significance. From
NUEVO REGISTRO DE TRES ESPECIES DE Orthaulax (Gastropoda: Strombidae) EN LAS FORMACIONES SAN LUIS Y PATIECITOS DEL OLIGOCENO TARDÍO – MIOCENO TEMPRANO EN EL ESTADO FALCÓN, VENEZUELA
Until now, the genus Orthaulax has been considered as absent from the Oligo-Miocene basins of South America. On the other hand, it proliferated in the infralittoral environments from the calcareous
Late Miocene Conidae (Mollusca: Gastropoda) of Crete (Greece). Part 2
TLDR
The Late Miocene Conidae of Crete (Greece) have recently been evaluated for the genera Conilithes and Conus (Kalloconus) and two species, not attributed to a subgenus of Conus are evaluated with the use of UV light.
Neogene molluscs, shallow marine paleoenvironments, and chronostratigraphy of the Guajira Peninsula, Colombia
The Neogene sedimentary fill of the Cocinetas Basin in northern Colombia preserves a rich record of marine invertebrates and can be analyzed in the context of a high-resolution stratigraphy and
The balanced life: evolution of ventral shell weighting in gastropods
  • G. Vermeij
  • Biology, Environmental Science
    Zoological Journal of the Linnean Society
  • 2021
TLDR
Functional considerations and comparisons indicate that the enhanced gravitational stability provided by a ventral callus evolved only in conditions of low-cost calcification and when predators capable of dislodging or overturning gastropods or causing them to flee were important agents of selection.
Revised stratigraphy of Neogene strata in the Cocinetas Basin, La Guajira, Colombia
AbstractThe Cocinetas Basin of Colombia provides a valuable window into the geological and paleontological history of northern South America during the Neogene. Two major findings provide new
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    Farley Creek, 0.I mile east of bridge of Florida Highway 27 5 (SW Y4 Sec. 2I, TIN, R9W)
      Ten Mile Creek, at power line crossing about one mile west of Chipola River (SE Y4 Sec. I2, TIN, RIOW)
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