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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; 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


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