1970
Over het voorkomen van Gastrochaena dubia (Pennant 1777) in de Zanden van Kattendijk bij Antwerpen
Publication
Publication
Mededelingen van de Werkgroep voor Tertiaire en Kwartaire Geologie , Volume 7 - Issue 1 p. 27- 30
Because of their rare occurrence complete specimens of the fossil flask-shell (Gastrochaena dubia) are seldom collected from the Tertiairy beds near Antwerp, Belgium. However, a number of specimens were found in their own bore-holes, which were made in a stone-like substratum (septaria). The species is not exclusively dependent on stone substratum; it may also choose a large shell to settle and then complete the bore-hole by a self-built tube if the shell-material is not thick enough for the animal. Recently a nice specimen was found in a valve of Pygocardia rustica from Pliocene beds (Kattendijk sands) near Antwerp. The outside of this valve show s an opening in the shape of an 8, to permit the passage of the sipho’s. This suggests that there is a well-preserved Gastrochaena inside the valve.
Additional Metadata | |
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Mededelingen van de Werkgroep voor Tertiaire en Kwartaire Geologie | |
CC BY-NC-ND 2.0 NL ("Naamsvermelding-NietCommercieel-GeenAfgeleideWerken") | |
Organisation | Werkgroep voor Tertiaire en Kwartaire Geologie |
J.M. Moraal. (1970). Over het voorkomen van Gastrochaena dubia (Pennant 1777) in de Zanden van Kattendijk bij Antwerpen. Mededelingen van de Werkgroep voor Tertiaire en Kwartaire Geologie, 7(1), 27–30. |