https://scholars.lib.ntu.edu.tw/handle/123456789/395586
標題: | Ancestor–descendant relationships in evolution: origin of the extant pygmy right whale, Caperea marginata | 作者: | Tsai, Cheng-Hsiu Fordyce, R. Ewan |
關鍵字: | Cetacea; Mysticeti; Ontogenetic clade; Phylogenetic methods; Punctuated equilibrium | 公開日期: | 一月-2015 | 出版社: | Royal Society of London | 卷: | 11 | 期: | 1 | 起(迄)頁: | 20140875 | 來源出版物: | Biology Letters | 摘要: | Ancestor-descendant relationships (ADRs), involving descent with modification, are the fundamental concept in evolution, but are usually difficult to recognize. We examined the cladistic relationship between the only reported fossil pygmy right whale, †Miocaperea pulchra, and its sole living relative, the enigmatic pygmy right whale Caperea marginata, the latter represented by both adult and juvenile specimens. †Miocaperea is phylogenetically bracketed between juvenile and adult Caperea marginata in morphologically based analyses, thus suggesting a possible ADR - the first so far identified within baleen whales (Cetacea: Mysticeti). The †Miocaperea - Caperea lineage may show long-term morphological stasis and, in turn, punctuated equilibrium. |
URI: | http://rsbl.royalsocietypublishing.org/content/11/1/20140875 http://scholars.lib.ntu.edu.tw/handle/123456789/395586 |
ISSN: | 17449561 | DOI: | 10.1098/rsbl.2014.0875 |
顯示於: | 生命科學系 |
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