890cts Uncoiled Baculite Ammolite Specimen Canada RG-5574

Item Information

Dimensions (mm) 74 x 41 x 29mm
Weight (carats) 890 carats
  • Specimen
Specimen :Uncoiled Baculite Ammolite
Origin : Canada

Baculites ("walking stick rock") is an extinct genus of cephalopods with a nearly straight shell, included in the heteromorph ammonites. The genus, which lived worldwide throughout most of the Late Cretaceous, was named by Lamarck in 1799.

he adult shell of Baculites is generally straight and may be either smooth or with sinuous striae or ribbing that typically slant dorso-ventrally forward. The aperture likewise slopes to the front and has a sinuous margin. The venter is narrowly rounded to acute while the dorsum is more broad. The juvenile shell, found at the apex, is coiled in one or two whorls and described as minute, about 1 centimeter (0.39 in) in diameter. Adult Baculites ranged in size from about 7 centimeters (2.8 in) (Baculites larsoni) up to 2 metres (6.6 ft) in length.

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Auction ID 1427147
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Starts 4th Mar 2021 8:42pm PST

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