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Species / Tylostoma Globosum

Tylostoma Globosum

Stromboidea


Original description of Tylostoma globosum by Sharpe, 1849:

  • " Shell globose, with a very short spire formed of about 6 volutions: whorls rounded, nearly smooth, marked only with very faint lines of growth. Mouth narrow: outer lip with a thick subdenticulated internal longitudinal callosity, which is repeated at intervals equal to 5/8ths of the volution, and accompanied by a considerable rise in the upper margin of the whorl."

Locus typicus: Sharpe mentions no locus typicus

Stratum typicum: Cretaceous

Localities: Figueira; one league west of Montemór velho; San Fagundo, 1½ league west of Coimbra; Sarjento-mór, 1½ league north of Coimbra; upper beds of the Hippurite limestone on the west side of Lisbon. All localities are in Portugal

Dimensions: Spire angle between 100° and 110°, length 2½ inches; breadth 2¼ inches in one direction, 1¾ inch in the other.

Tylostoma globosum in Sharpe, 1849, pl. IX, fig. 5 and 6

Tylostoma globosum Sharpe, 1849; Cenomanian, Cretaceous; Tilmas el Mra, Tinrhert, Algeria; 51 mm; Coll. MNHN no. R05255; Copyright Museum national d'Histoire naturelle Paris

Tylostoma globosum Sharpe, 1849; Turonian, Cretaceous; Route de Bel Guebbour, Algeria; 51 mm; Coll. MNHN no. R54093; Copyright Museum national d'Histoire naturelle Paris

Tylostoma globosum Sharpe, 1849; Cretaceus, Turonian; Kef Aïounet el Klab, Tunesia; 26 mm; Coll. MNHN no. J04212; Copyright Museum national d'Histoire naturelle Paris

Tylostoma globosum Sharpe, 1849; Turonian, Cretaceous; Libreville, Gabon;Figured by Dartevelle & Brebion 1956; Coll. MNHN R61104; Photo: Jocelyn Falconnet; Copyright Museum national d'Histoire naturelle Paris

Tylostoma globosum Sharpe, 1849; Cenomanian, Cretaceous; El Ménia (formerly El Goléa), El Ménia District, Ghardaïa Province, Algeria; 24 mm; Coll. MNHN no. R55525; Copyright Museum national d'Histoire naturelle Paris


References:

  • Albanesi (C.) & Busson (G.), 1974 - Gastéropodes du Crétacé supérieur de l'extrême-sud tunisien et de la région du Tinrhert (Sahara algérien). Rivista Italiana di Paleontologia, t. 80, vol. 2, p. 251-342
  • Amard (B.), Collignon (M.) & Lefavrais-Henry (M.), 1978 - Le Cénomanien d'El Goléa (Tademaït N., Sahara algérien): coexistence de Calycoceras avec Nigericeras et implications stratigraphiques. Cahiers de Micropaléontologie, n°4, p. 29-34
  • Amard (B.), Collignon (M.) & Roman (J.), 1981 - Étude stratigraphique et paléontologique du Crétacé supérieur et Paléocène du Tinrhert-W et Tademaït-E (Sahara algérien). Documents du Laboratoires de Géologie de Lyon, vol. h.s.6, p. 15-173
  • Dartevelle (E.) & Brébion (P.), 1956 - Mollusques fossiles du Crétacé de la Côte occidentale d'Afrique du Cameroun à l'Angola. 1. Gastéropodes. Annales du Musée royal du Congo belge. Sciences géologiques, vol. 15, p. 1-128
  • Pervinquière (L.), 1912 - Études de Paléontologie tunisienne, 2. Gastropodes et Lamellibranches des terrains crétacés, p. 1-352
  • Sharpe, 1849

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