The presence of a small colony of Synastrea bellula (d’Orbigny, 1850) in Berriasian beds of the pelagic Maiolica in the Venetian Prealps (NE Italy) provides a key for interpreting the palaeobathymetry of the formation on the Trento Plateau. This pennular scleractinian belongs to a zooxanthellate group whose fossil and modern representatives are characterized by an outstanding specialization in colonizing deeper parts of the marine photic zone (mesophotic zone). The coral grew on the shell of an inferred ammonoid affected by intense microbial erosion. The conch was encrusted first by bryozoans and later by the coral, which immurated a microserpulid, designated as Turriserpula coralliophila gen. et sp. nov. Applying the sclerochronology method, a life duration of the stony coral of at least twelve years is inferred.

在威尼斯Prealps（意大利东北）的中上层Maiolica的Berriasian床中存在一个小Synastrea bellula（d'Orbigny，1850）殖民地，这为解释特伦托高原地层的古气压计提供了关键。这是一个黄粉虫属，属于动物黄藻类，其化石和现代代表的特征是擅长在海洋光合带（中生带）的较深部分定居。珊瑚生长在受强烈微生物侵蚀影响的推断氨类动物的外壳上。海螺首先被苔藓虫包住，随后被珊瑚所包埋，珊瑚植入了微蛇毒鱼，被命名为Turriserpula Coralliophilagen。等 十一月 应用年代学方法，推断出石珊瑚的寿命至少为十二年。