Acamptogenotia

Acamptogenotia is an extinct genus of predatory sea snails, marine gastropod mollusks belonging to an unassigned family in the Conoidea.[3]

Acamptogenotia
Temporal range: Paleocene-Pliocene
Fossil shell of Acamptogenotia intorta
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily:
Conoidea
Family:
(unassigned) Conoidea
Genus:
Acamptogenotia

Rovereto, 1899
Type species
Pleurotoma intorta Brocchi, 1814
Synonyms

Pseudotoma Bellardi 1875 [1][2]

First appearing 48.6 Ma and believed to go extinct 7.246 Ma. Specimens of Acamptogenotia have been found in Austria, Denmark, Germany, The Netherlands, The UK, and The continental United States. The Acamptogenotia lived during the Paleocene epoch of Denmark and Greenland, The Oligocene epoch of Mexico, and in the Pliocene epoch of Italy

Description

The ovate, fusiform, shell is short and stout. The spire is about the length of the aperture. The columella is straight, very short, axis impervious. The siphonal canal is very short and wide. The anal sulcus is wide, moderately deep, close to the suture. The spiral sculpture is feeble. The axial sculpture consists of moderately strong riblets. The operculum is wide, ovate, with apical nucleus. Type Pleurotoma intorta Brocchi, 1814 [4]

Species
  • † Acamptogenotia alazana (Cooke 1928) [1][3]
  • ↑ Acamptogenotia colpophora Cossmann, 1889 [5]
  • Acamptogenotia coronata (Lamarck, 1803) (synonym: Fusus coronatus Lamarck, 1803) [5]
  • † Acamptogenotia heilprini Aldrich 1885 [1][3]
  • † Acamptogenotia intorta Brocchi 1814 [1][6]
  • † Acampiogenotia liancurtensis (de Boury, 1899) (synonym: Genotia liancurtensis'' de Boury, 1899 [5]
  • † Acamptogenoiia loustaui (Deshayes, 1865) [5]
  • † Acampiogenotia quieta (Deshayes, 1865) [5]

References
  1. Palaeos
  2. GBIF
  3. Fossilworks
  4. W.H. Dall (1908) Reports on the Mollusca and Brachiopoda, Bulletin of the Museum of Comparative Zoology at Harvard College. vol. 43
  5. JacquesLerenard: Sur la position systematique des gastropoda eocenes du bassin de Paris-classes-Parvisipho et Siphonalia; Cossmanniana tome 3 nu. 3; mai 1995
  6. Fossiles
  • de Boury E. , 1899. Révision des pleurotomes éocènes du Bassin de Paris (suite). La Feuille des Jeunes Naturalistes (3)29, n° 340: 62-65
  • Bouchet, P., J.-P. Rocroi, J. Frýda, B. Hausdorf, W. Ponder, Á. Valdés & A. Warén. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1-2): 1-397.
  • Powell, A. W. B. 1966. The molluscan families Speightiidae and Turridae: An evaluation of the valid taxa, both Recent and fossil, with lists of characteristic species. Bulletin of the Auckland Institute and Museum 5: 1-184, pl. 1-23.
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