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Species / Ectinochilus Laqueatum

Ectinochilus Laqueatum

Stromboidea


Original Description of Rostellaria laqueata by Conrad, 1833, p. 41:

  • "Subulate, with acute longitudinal ribs, and fine spiral striae: base coarsely striated."

Remark: "I at first thought this might be the young of R. velata, (nobis) but a comparison of many specimens proves it entirely distinct."

Stratum typicum: Gosport Sand Formation, Eocene

Locus typicus: Claiborne, Monroe County, Alabama, USA


History and Synonymy

1833

Description of Rostellaria Cuvieri by Lea, 1833, p. 160:

  • "Shell subfusiform, truncate below, longitudinally folded and striate; substance of the shell thick; spire elevated, suture linear; whorls about eight, very slightly convex; canal at the base very short, above erect, terminating half way up the spire; columella thickened, reflected; mouth contracted; outer lip truncate below, thickened, edged."
  • Dimensions: "Length .7, Breadth .3, of an inch."
  • junior synonym

Rostellaria Cuvieri Lea, 1833, pl. V, fig. 165

1835

Description of Rostellaria laqueata by Conrad, 1835, p. 38:

  • "Subfusiform, with acute longitudinal slightly curved plicae on the superior half of each whorl; whorls slightly convex, with fine spiral striae; labium thick, margin acute, biangulated inferiorly; base with strong striae; truncated."
  • "Locality. Claiborne, Monroe County, Alabama, USA
  • "Syn. R. Cuvieri, Lea, Con. p. 160, pl. 5, f. 165."
  • "This species is very abundant."

Rostellaria laqueata in Conrad, 1835, pl. 15, fig. 4

1890

Strombus canalis var. laqueata in De Gregorio, 1890, pl. 9, fig. 16 - 19


Specimens from institutional collections

Ectinochilus laqueatus (Conrad, 1833); Gosport Sand Formation, Eocene; Claiborne, Monroe County, Alabama, USA; 24,55 mm; Coll. ZMA; Photo Ron Voskuil

Ectinochilus laqueatus (Conrad, 1833); Gosport Sand Formation, Eocene; Claiborne, Monroe County, Alabama, USA; l: 18,2 mm, r: 14,65 mm; 1894; Coll. ANSP no. 7135; Photo Ron Voskuil


Specimens from private collections

Ectinochilus laqueatum (Conrad, 1833); Gosport Sand Formation, Eocene; Claiborne, Monroe County, Alabama, USA; Coll. Ulrich Wieneke no. UW2308


References:

  • Conrad, T.A. 1832-1833. Fossil shells of the Tertiary formations of North America, illustrated by figures drawn on stone, from nature. vol. 1 (in four parts). [1(1): i-viii, 9-20, pls. 1-6; 2: 21-28, pls. 7-14, 1832: 1(3): 29-38, no plates; 4:39-46, no plates, 1833; republished by G.D. Harris, 1893, with additional plates 19-20; reprinted 1963: Paleontological Research Institution, Ithaca, New York]
  • Conrad, T.A. 1835. Fossil shells of the Tertiary formations of North America 1(3): 29-56, pls. 15-20, 1 map. [See Conrad, 1832-1833; republication and revision of parts 3 and 4, this paper is an appendix to Conrad, 1834]
  • Harris & Palmer, 1946
  • I. Lea, 1833. Contributions to Geology; Philadelphia, Carey, Lea & Blanchard; pp. 1-227, pls. I-VI. URL

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