Conus concinnus (Sowerby J., 1821)
Conus concinnus (Philippi, 1847)
Conus concinnus (Beyrich, 1853)
Descrizione:
Fusiform,
angular in the middle, spire ornamented with knobs and granulated striae; base
produced, sulcated (2).
This
elegant Cone is nearly three time as long as broad, the spire occupying little
more than one third of the length; both end are pointed; the sulci upon the
base is deepest towards the point (2).
From
Highgate Hill, and Barton; not very common (2).
Per lungo tempo il Conus concinnus, una specie considerata
avere un’età di 56 MA, è stato considerato uno dei più antichi Conus, ma
con la scoperta dell’Hemiconus leroyi (Tracey et al., 2017), più
vecchio di circa 2 MA, le cose sono cambiate (1).
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Hemiconus concinnus
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Conus
concinnus (Sowerby, 1821) Lectotytpe BMNH mm. 13,7 x 6,0 Gran Bretagna |
Conus concinnus (Sowerby, 1821) Gran Bretagna |
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Hemiconus concinnus (J. Sowerby, 1821) (1) NHMUK PI TG 26833 (coll. WETHERELL) late Ypresian Highgate
Archway, London |
Hemiconus concinnus (J. Sowerby, 1821) (4) Yprésien (Eocène Inférieur) deHighgate (Angleterre),
MNHN.F.J15108 (coll. Cossmann), h.: 16,0 mm. |
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Conus concinnus (Philippi, 1847) –
Palaeontographica I, pag. 80, N. 183 Late Eocene – Early
Oligocene Magdeburg – Germania |
Conus concinnus (Sowerby, 1821) - Beyrich, 1853 (3) Plate I Fig. 2 Oligocene Westeregeln, Helmstadt –
Germania |
Bibliografia Consultata
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(2)
- Sowerby, J., 1821. Mineral Conchology of Great Britain, or, Coloured
figures and descriptions of those remains of testaceous animals or shells which
have been preserved at various times and depths in the earth, 3
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(3) -
Beyrich, E., 1853. Die Conchylien des norddeutschen Tertiargebirges. Zeitschrift
der Deutschen Geologischen Gesellschaft, 5: 273 -358