Tooth histology of the parareptile Soturnia caliodon from the Upper Triassic of Rio Grande do Sul, Brazil

Cabreira SF; Cisneros JC

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Tooth histology of the parareptile Soturnia caliodon from the Upper Triassic of Rio Grande do Sul, Brazil

机译：来自巴西南里奥格兰德州上三叠纪的副爬行动物牙周畸形的牙齿组织学

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A histological analysis of the dentition of the small procolophonid parareptile Soturnia caliodon reveals detailed information concerning tooth implantation and replacement for this taxon. The presence of acrodont tooth implantation is verified, which contradicts current models for procolophonid dentition. A heterogeneous enamel layer, that reaches large thickness on the cusps, and a broad secondary dentine are also recorded. These structures provide a very stable occlusal morphology that extends the useful lire of the teeth. During the process of replacement, old teeth were not pushed out but reabsorbed. The evidence indicates that Soturnia caliodon had a very low rate of tooth replacement which constitutes a valuable adaptation for its high-fibre herbivorous niche.

机译：对小型突齿类爬行动物Soturnia caliodon的牙列的组织学分析揭示了有关牙齿植入和该分类单元置换的详细信息。证实了丙烯醛牙植入的存在，这与当前的声母牙列模型相矛盾。还记录了在牙尖达到较大厚度的异质搪瓷层和较宽的次生牙本质。这些结构提供了非常稳定的咬合形态，从而扩展了牙齿的有用义线。在更换过程中，旧牙齿没有被推出，而是被重新吸收了。证据表明，Soturnia caliodon的牙齿替换率非常低，这为其高纤维草食生态位构成了有价值的适应方法。

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《Acta Palaeontologica Polonica》 |2009年第4期|共6页
作者
Cabreira SF; Cisneros JC;
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正文语种 eng
中图分类古生物学;
关键词
PROCOLOPHONID REPTILE; REPLACEMENT;

机译：鼻翼置换;替代;

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1. Tooth histology of the parareptile Soturnia caliodon from the Upper Triassic of Rio Grande do Sul, Brazil [J] . Cabreira SF, Cisneros JC Acta Palaeontologica Polonica . 2009,第4期

机译：来自巴西南里奥格兰德州上三叠纪的副爬行动物牙周畸形的牙齿组织学
2. A new third-order sequence stratigraphic framework applied to the Triassic of the Parana Basin, Rio Grande do Sul, Brazil, based on structural, stratigraphic and paleontological data [J] . B.L.D. Horn, T.M. Melo, C.L. Schultz, Journal of South American earth sciences . 2014,第nova期

机译：基于结构，地层和古生物学数据，将新的三阶层序地层学框架应用于巴西南里奥格兰德州巴拉那盆地的三叠纪
3. Calcretes of the Santa Maria Supersequence, Middle Triassic, Rio Grande do Sul, Brazil: Classification, genesis and paleoclimatic implications [J] . Horn B.L.D., Pereira V.P., Schultz C.L. Palaeogeography, Palaeoclimatology, Palaeoecology: An International Journal for the Geo-Sciences . 2013,第Null期

机译：巴西南里奥格兰德州中三叠世圣玛丽亚超序列的钙质：分类，成因和古气候意义
4. Lightning behavior with respect to altitude variations at Rio Grande do Sul (South of Brazil) based on data of the Brazilian Lightning Detection Network [C] . De-ming Shi, Dong-lin Su, Fei Dai, International Conference on Atmospheric Electricity . 2007

机译：基于巴西闪电探测网的数据，南里约格兰德州（巴西南部）关于高度变化的闪电行为
5. Ranching in the Campanha of Rio Grande do Sul, Brazil, 1850-1920: An historical geography of uneven development. [D] . Bell, Stephen Andrew. 1991

机译：1850-1920年在巴西南里奥格兰德州的Campanha牧场：发展不平衡的历史地理。
6. First Rauisuchian archosaur (Pseudosuchia Loricata) for the Middle Triassic Santacruzodon Assemblage Zone (Santa Maria Supersequence) Rio Grande do Sul State Brazil [O] . Marcel B. Lacerda, Cesar L. Schultz, Cristina Bertoni-Machado -1

机译：巴西南里奥格兰德州中三叠世圣塔克鲁索顿集合区（圣玛丽亚超序列）的首个 Rauisuchian恐龙（PorudosuchiaLoricata）
7. Tooth histology of the parareptile Soturnia caliodon from the Upper Triassic of Rio Grande do Sul, Brazil [O] . Sergio Furtado Cabreira, Juan Carlos Cisneros 2015

机译：来自巴西南里奥格兰德州上三叠纪的parareptile soturnia caliodon的牙齿组织学

Tooth histology of the parareptile Soturnia caliodon from the Upper Triassic of Rio Grande do Sul, Brazil

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