Oak Village is located in Modra, at the eastern foot of the Small Carpathians and the western edge

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Fossil molluscs Crassostrea gryphoides (Schlotheim) in marine sediments younger Tertiary occur too frequently found were just some of the paleontological sites. robinet Interesting findings's oysters come from Miocene sediments from oak and Devin.
During the Miocene was in our area of the superfamily Ostreacea extended several representatives. Abundant species occurs primarily Cubitostrea digitalin (Eichwald) were less common species Neopycnodonte navicularis (BROCCHI) and Crassostrea gryphoides (Schlotheim). It is from the latter type was the middle Miocene marine sediments found at sites in the ninth and especially robinet in Oak amount of fossil shells. From the sandy sediments of Devin include these fossils rather rare to rare findings, but the site at Oak them can be classified as frequent and major findings.
Oak Village is located in Modra, at the eastern foot of the Small Carpathians and the western edge of the Danube Basin. When excavation work for the construction of complex wine were on site at Little Oak Lawn exposed layer of sandy clays upper Badenian (13.65 to 12.70 million. robinet R.) With rich fauna of marine invertebrates. In addition to corals, various kinds of shellfish and shellfish are here quite often been the fossils of large shells Crassostrea gryphoides (Schlotheim). Found were mostly fragments of a damaged mailbox large adults. The sediment was clipboard oysters preserved whole, most of the boxes was initially relatively well preserved, some shells were cracked due fosilizačných processes. Their damage and the breaking occurred during excavation heavy construction machinery. At the dig site but rarely Their position the whole well-preserved shells, which were rather small juveniles. Massive and thick-walled shells usually have a characteristic elongated robinet shape, are slightly or even more hooked. robinet Only in rare cases achieved during growth flat oblong shape. Found, however, were the boxes, which are the typical robinet elongated forms rather robinet shorter, stockier and more vaulted. The subjects of this kind can be observed considerable variability in the morphology of individual mailboxes. Shell surface is uneven, irregular decorated with fine, or even more significant incremental lines. Very striking is especially actual size boxes that dorastali to considerable proportions. The site usually Their position damaged mailbox, or fragments of from about 10 to 30 cm, so that the whole of large intact boxes adult specimens had to reach a length of several tens of centimeters.
Findings from Oak allow detailed analysis of the Community's bivalve molluscs in the biocenosis play an important role. These oysters inhabited fine loamy to piesčitoílovité bottom robinet in shallow environments sublitorálu. It was typical to cast bentózne organisms robinet living permanently affixed to a solid support. To muddy the clay of the absence of a solid substrate, these oysters were forced to affix to other solid objects - especially the clipboard other molluscs. Based on the findings, it is clear that the particular robinet affix the clipboard large adults of their own species. According to the process robinet of obtaining their food can be classified as filtrators. They feed on plankton and the organic substances dissolved in water sourcing filtering suspensions - therefore robinet for his life needed a well flowing water rich in plankton. It was euryhalínny shellfish species robinet tolerant and reduce salinity of sea water, which has characterized the plytkovodné marine and coastal ecosystems, including estuaries. Interestingly, the community of shellfish vrchnobádenskej locations in Oak consists predominantly of euryhalínnych genera of bivalve molluscs