期刊
ALCHERINGA
卷 37, 期 4, 页码 456-461出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/03115518.2013.772825
关键词
freshwater plesiosaurs; Plesiosauria; Cretaceous; Eumeralla Formation; Victoria
类别
资金
- Leverhulme Foundation [RPG-129]
- Harold Mitchell Foundation
- Museum Victoria
We report a large plesiosaurian tooth from the freshwater early-middle Aptian (Early Cretaceous) Eumeralla Formation of Victoria, Australia. This, combined with records of smaller plesiosaurian teeth with an alternative morphology, provides evidence for a multitaxic freshwater plesiosaurian assemblage. Dental and body size differences suggest ecological partitioning of sympatric freshwater plesiosaurians analogous to that in modern freshwater odontocete cetaceans. The evolutionarily plastic body plan of Plesiosauria may have facilitated niche differentiation and helped them to exclude ichthyosaurs from freshwater environments during the Mesozoic. However, confirmation of this hypothesis requires the discovery of more complete remains.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据