The head and neck anatomy of sea turtles (Cryptodira: Chelonioidea) and skull shape in Testudines.
The head and neck anatomy of sea turtles (Cryptodira: Chelonioidea) and skull shape in Testudines.
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DOI：
10.1371/journal.pone.0047852
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Evans SE
中科院分区：
文献类型：
--
作者：
Jones ME;Werneburg I;Curtis N;Penrose R;O'Higgins P;Fagan MJ;Evans SE
海龟（Chelonoidea）是一群具有魅力的海洋爬行动物，占据了一系列重要的生态角色。然而，其摄食解剖的多样性和进化仍然不完全知道。为了更好地了解海龟的功能解剖和形态变异，我们采用计算机断层扫描和经典的比较解剖学方法，对红海龟（Caretta caretta）和肯普氏龟（Lepidochelys kempii）的颅骨解剖进行了描述。在这两个分类群的颅骨颞区是封闭的骨和颌骨关节结构和肌肉的安排表明，腭颌骨运动是可能的。舌头相对较小，舌骨器不像一些淡水水生龟那样明显。我们发现C的肌肉之间有几个相似之处。caretta和L. kempii，但与其他海龟的比较表明，这些特征中只有一个可能是派生的：m的连接。下颌内收肌经Zwischensehne进入下颌内侧部。M的大型肉质起源。外收肌下颌骨浅部从轭似乎是海龟的一个特征。In C. caretta和L. kempii吸食的能力似乎不像某些淡水水生海龟那样发达。相反，两者都有适合用力咬的头骨。这是一致的观察，这两个类群往往以相对缓慢的移动，但有时装甲猎物。M的广泛肉质起源。下颌外收肌浅部可能与颊区几乎完全封闭在骨内有关，但关系复杂。
Sea turtles (Chelonoidea) are a charismatic group of marine reptiles that occupy a range of important ecological roles. However, the diversity and evolution of their feeding anatomy remain incompletely known. Using computed tomography and classical comparative anatomy we describe the cranial anatomy in two sea turtles, the loggerhead (Caretta caretta) and Kemp’s ridley (Lepidochelys kempii), for a better understanding of sea turtle functional anatomy and morphological variation. In both taxa the temporal region of the skull is enclosed by bone and the jaw joint structure and muscle arrangement indicate that palinal jaw movement is possible. The tongue is relatively small, and the hyoid apparatus is not as conspicuous as in some freshwater aquatic turtles. We find several similarities between the muscles of C. caretta and L. kempii, but comparison with other turtles suggests only one of these characters may be derived: connection of the m. adductor mandibulae internus into the Pars intramandibularis via the Zwischensehne. The large fleshy origin of the m. adductor mandibulae externus Pars superficialis from the jugal seems to be a characteristic feature of sea turtles. In C. caretta and L. kempii the ability to suction feed does not seem to be as well developed as that found in some freshwater aquatic turtles. Instead both have skulls suited to forceful biting. This is consistent with the observation that both taxa tend to feed on relatively slow moving but sometimes armoured prey. The broad fleshy origin of the m. adductor mandibulae externus Pars superficialis may be linked to thecheek region being almost fully enclosed in bone but the relationship is complex.
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影响因子：
2.4
作者：
Arencibia, A.;Rivero, M. A.;Oros, J.
通讯作者：
Oros, J.
影响因子：
2.4
作者：
Boyle, M. C.;Limpus, C. J.
通讯作者：
Limpus, C. J.
DOI：
10.1098/rspb.2008.1931
发表时间：
2009-06-07
影响因子：
4.7
作者：
Boyle, M. C.;FitzSimmons, N. N.;Waycott, M.
通讯作者：
Waycott, M.
影响因子：
--
作者：
BLANEY, SPA;JOHNSON, B
通讯作者：
JOHNSON, B
影响因子：
2.7
作者：
Benson, Roger B. J.;Domokos, Gabor;Reisz, Robert R.
通讯作者：
Reisz, Robert R.