| Growth patterns in brooding dinosaurs reveals the timing of sexual maturity in non-avian dinosaurs and genesis of the avian condition | |
| Erickson, Gregory M.; Rogers, Kristina Curry; Varricchio, David J.; Norell, Mark A.; Xu, Xing | |
| 2007-10-22 | |
| 发表期刊 | BIOLOGY LETTERS
 |
| 卷号 | 3期号:5页码:558-561 |
| 文章类型 | Article |
| 摘要 | The timing of sexual maturation in non-avian dinosaurs is not known. In extant squamates and crocodilians it occurs in conjunction with the initial slowing of growth rates as adult size is approached. In birds ( living dinosaurs) on the other hand, reproductive activity begins well after somatic maturity. Here we used growth line counts and spacing in all of the known brooding non-avian dinosaurs to determine the stages of development when they perished. It was revealed that sexual maturation occurred well before full adult size was reached - the primitive reptilian condition. In this sense, the life history and physiology of non-avian dinosaurs was not like that of modern birds. Palaeobiological ramifications of these findings include the potential to deduce reproductive lifespan, fecundity and reproductive population sizes in non-avian dinosaurs, as well as aid in the identification of secondary sexual characteristics. |
| 关键词 | Development Reproduction Histology Aves Theropoda |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 关键词[WOS] | AMERICAN ALLIGATORS ; MONGOLIA ; RATES ; LIFE ; HISTOLOGY ; LIZARDS ; BIOLOGY ; CURVES ; NEST ; EGG |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
| WOS类目 | Biology ; Ecology ; Evolutionary Biology |
| WOS记录号 | WOS:000249421800030 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/1943 |
| 专题 | 古低等脊椎动物研究室 |
| 作者单位 | 1.Florida State Univ, Dept Sci Biol, Tallahassee, FL 32306 USA 2.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA 3.Sci Museum Minnesota, St Paul, MN 55102 USA 4.Montana State Univ, Dept Earth Sci, Bozeman, MT 59717 USA 5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Erickson, Gregory M.,Rogers, Kristina Curry,Varricchio, David J.,et al. Growth patterns in brooding dinosaurs reveals the timing of sexual maturity in non-avian dinosaurs and genesis of the avian condition[J]. BIOLOGY LETTERS,2007,3(5):558-561. |
| APA | Erickson, Gregory M.,Rogers, Kristina Curry,Varricchio, David J.,Norell, Mark A.,&Xu, Xing.(2007).Growth patterns in brooding dinosaurs reveals the timing of sexual maturity in non-avian dinosaurs and genesis of the avian condition.BIOLOGY LETTERS,3(5),558-561. |
| MLA | Erickson, Gregory M.,et al."Growth patterns in brooding dinosaurs reveals the timing of sexual maturity in non-avian dinosaurs and genesis of the avian condition".BIOLOGY LETTERS 3.5(2007):558-561. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Growth patterns in b（1373KB） | 开放获取 | 使用许可 | 浏览 下载 | |||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论