Conus
complicatus (Tate, 1890)
Descrizione:
Shell varying from broadish-to narrow-conical, about twice as long as wide, spire very short, ending in a small obtuse pullus of two smooth whorls, the tip centrally immersed. Spire-whorls four, narrow, the periphery slightly exsert, behind which they are slightly concave ; ornamented by three or four broad depressed lirae, tessellated by regular, deeply arched, growth-ridges.
Body-whorl sharply angled and slightly elevated at the periphery, regularly tapering to the front ; sculptured by somewhat regularly-disposed linear sulci; separated by broad depressed ridges of which the first and fourth are usually broader, more elevated, and covered with flat granulations which range more or less in lines coincident with the striae of growth. Growth lines prominent, moderately ecurved, which produce slight crenatures in the spiral furrows. Outer lip slightly ecurved medially, deeply arcuately notched behind the peripheral angulation.
Dimensions. — Length: 18,5 ; greatest width: 10 ;
length of aperture: 16,5 ; of another specimen, they are respectively 21, 10,
18.
Localities. — Miocene beds at Muddy Creek and
Schnapper Point. Snapper Point is Mount Martha Mornington Peninsula 14.5-15.5 Ma
and Muddy Creek is similar age at least the layers this species is from
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Conus complicatus mm. 18,5 x 10 Plate VIII fig. 8 |
Conus cf. complicatusEarly Miocene 20 Ma [Coll. Angus Hawke] |
mm. 25 Early Miocene, Freestone Cove Sandstone,
Fossil Bluff Wynyard, Tasmania, Australia [Adam Anderson] |
Bibliografia Consultata
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(1)
- Tate (1890) – “TRANSACTIONS AND
PROCEEDINGS REPORT OF THE ROYAL SOCIETY Of SOUTH
AUSTRALIA”: pag. 195
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CATALOGUE
TERTIARY MOLLUSCA IV THE DEPARTMENT OF GEOLOGY. PART I. AUSTRALASIA: pag. 27 [57]
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