Epizoic Stramentid Cirripedes on Ammonites from Late Cretaceous Platy Limestones in Mexico
Epizoic Stramentid Cirripedes on Ammonites from Late Cretaceous Platy Limestones in Mexico
复制标题
墨西哥晚白垩世板状石灰岩菊石上的生代蟋蟀
DOI：
10.1666/10-052.1
复制
发表时间：
2011
影响因子：
0.8
通讯作者：
W. Stinnesbeck
中科院分区：
文献类型：
--
作者：
C. Ifrim;F. Vega;W. Stinnesbeck
墨西哥东北部板状石灰岩矿床的发现，使得人们在新evo州的Vallecillo （León）和Coahuila州的El Carranza（卡兰萨）收集了保存完好的早期Turonian时代的化石，并在Coahuila州收集了早期Coniacian时代的化石。在鹦鹉螺的一生中，石纹螺（Stramentum） pulchellum （Sowerby, 1843）寄居在鹦鹉螺的壳上，偶尔在随后的两代中。只有强烈的纹饰才阻碍了螺柱菌（Stramentum (S.) pulchellum）对鹦鹉螺壳的定殖。菊石不干涉它们的动物活动。一生中的定植表明，这些菊石居住在靠近地表的含氧良好的水域，大多数流线虫都是活的。我们的发现大大扩大了已知的古生物地理产状及其长地层产状。Stramentum的假浮游生物生活模式和对鹦鹉螺壳的附着可能是一种曾经的底栖生物对中白垩纪海洋海底反复缺氧条件的反应，即对海洋缺氧事件（oae）的反应。
Abstract The discovery of platy limestone deposits in northeastern Mexico has led to the collection of well-preserved stramentids of early Turonian age from Vallecillo, state of Nuevo León, and of early Coniacian age from El Carranza, state of Coahuila. Stramentum (Stramentum) pulchellum (Sowerby, 1843) colonized the ammonite shells during the lifetime of the animals, occasionally in two subsequent generations. Colonization of the ammonite shell by Stramentum (S.) pulchellum was hindered by strong ornamentation only. The ammonites did not interfere with their epizoans. Colonization during lifetime shows that these ammonites dwelled in well-oxygenated water levels near the surface, and most stramentids were embedded alive. The known paleobiogeographic occurrence of Stramentum (S.) pulchellum and its long stratigraphic occurrence are considerably enlarged by our findings. The pseudoplanktonic mode of life of Stramentum, and attachment to ammonite shells, may have been a response of a once benthic organism to repeated oxygen-deficient conditions on the seafloor of mid-Cretaceous oceans, i.e., to oceanic anoxic events (OAEs).
墨西哥东北部的上白垩纪（塞诺曼阶-土伦阶和土伦阶-科尼亚阶）开放海洋石灰岩矿床
DOI：
10.1127/0077-7749/2007/0245-0071
发表时间：
2008
影响因子：
0.8
作者：
Stinnesbeck
通讯作者：
Stinnesbeck