海百合茎上的幸运皱纹珊瑚：来自摩洛哥泥盆纪的表皮下表皮动物的不寻常例子,Lethaia

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海百合茎上的幸运皱纹珊瑚：来自摩洛哥泥盆纪的表皮下表皮动物的不寻常例子
Lethaia ( IF 1.9 ) Pub Date : 2011-07-11 , DOI: 10.1111/j.1502-3931.2011.00278.x
Błażej Berkowski ₁ , Christian Klug ₂

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Berkowski, B & Klug, C. 2011：海百合茎上的幸运珊瑚：来自摩洛哥泥盆纪的表皮下表皮动物的不寻常例子。Lethaia，卷。45，第 24-33 页。在化石记录中，真正的外生动物（即活的动物居住在其他活的宿主动物中）的证据相当罕见。通常需要宿主反应来证明表皮动物的同体内沉降。在此，我们首次报道了来自世界著名的摩洛哥泥丘地区哈马尔拉格达早泥盆世的各个地层的这种表皮动物群落。在这种情况下，孤立的有皱纹的珊瑚作为幼虫定居在海百合茎上，可能是由于某种原因（受伤、疾病）而在表皮缺失的地方。海百合和珊瑚开始相互生长。通过这样做，受影响的海百合柱形成了一个肿胀，最终只剩下一个比珊瑚孔口稍大的开口。我们讨论了这种生物群落的宏观生态学和小规模同生态学方面。珊瑚受益于其高架家园，因为它进入更快速的洋流，为息肉提供比人口稠密的海底更多的食物，海底可能被土丘和热液喷口周围的珊瑚草甸覆盖。□珊瑚、海百合、早泥盆世、表皮动物、摩洛哥、Rugosa。这可能被土丘和热液喷口周围的珊瑚草甸所覆盖。□珊瑚、海百合、早泥盆世、表皮动物、摩洛哥、Rugosa。这可能被土丘和热液喷口周围的珊瑚草甸所覆盖。□珊瑚、海百合、早泥盆世、表皮动物、摩洛哥、Rugosa。

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Lucky rugose corals on crinoid stems: unusual examples of subepidermal epizoans from the Devonian of Morocco

Berkowski, B & Klug, C. 2011: Lucky rugose corals on crinoid stems: unusual examples of subepidermal epizoans from the Devonian of Morocco. Lethaia, Vol. 45, pp. 24–33. In the fossil record, evidence for true epizoans, i.e. living animals inhabiting other living host-animals, is rather rare. A host reaction is usually needed to proof the syn vivo-settling of the epizoan. Herein, we provide a first report of such an epizoan biocoenosis from various strata of the Early Devonian of Hamar Laghdad, the world-renowned Moroccan mud-mound locality. In this case, solitary rugose corals settled as larvae on crinoid stems, perhaps at a spot where the epidermis was missing for some reason (injury, disease). Both the crinoid and the coral began to grow around each other. By doing so, the affected crinoid columnals formed a swelling, where ultimately only an opening slightly larger than the coral orifice remained. We discuss both macroecological and small-scale synecological aspects of this biocoenosis. The coral profited from its elevated home because it reached into more rapid currents providing the polyp with more food than at the densely populated seafloor, which was probably covered by a coral-meadow around the mounds and hydrothermal vents. □Corals, crinoids, Early Devonian, epizoans, Morocco, Rugosa.

更新日期：2011-07-11

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