露出牙齿的神秘动物:一种新的鲸鱼化石，来自西南太平洋的hakataramea哺乳动物

Q2 Agricultural and Biological Sciences

Memoirs of Museum Victoria Pub Date : 2016-01-01 DOI:10.24199/J.MMV.2016.74.11

R. E. Fordyce, F. G. Marx

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引用次数: 16

摘要

福代斯，R.E.和马克思，F.G. 2016。露出牙齿的神秘动物:一种新的鲸鱼化石，来自西南太平洋的hakataramea哺乳动物。维多利亚博物馆回忆录74:107-116。在新西兰南坎特伯雷的Hakataramea山谷发现的一具小齿鲸类化石，代表了一个新的晚渐新世物种——Hakataramea哺乳动物。新材料来自坎特伯雷盆地的Kokoamu greenand (Duntroonian Stage，约27 Ma，早至中Chattian)，因此比该属中唯一的其他物种Mammalodon colliveri(晚渐新世，澳大利亚维多利亚)早约2 Ma。鼓室球的前蒂不与骨膜融合，在基本结构上与飞燕科相似。牙齿表现出极端的磨损和/或磨蚀，这已经湮没了冠。与colliveri哺乳动物一样，M. hakataramea可能是猛禽或底栖吸吮动物。

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Mysticetes baring their teeth: A new fossil whale, Mammalodon hakataramea, from the Southwest Pacific

Fordyce, R.E. and Marx, F.G. 2016. Mysticetes baring their teeth: a new fossil whale, Mammalodon hakataramea, from the Southwest Pacific. Memoirs of Museum Victoria 74: 107–116. A small, toothed fossil cetacean from Hakataramea Valley (South Canterbury, New Zealand) represents a new Late Oligocene species, Mammalodon hakataramea. The new material is from the Kokoamu Greensand (Duntroonian Stage, about 27 Ma, early to middle Chattian) of the Canterbury Basin, and thus about 2 Ma older than the only other species included in this genus, Mammalodon colliveri (Late Oligocene, Victoria, Australia). The anterior pedicle of the tympanic bulla is not fused to the periotic and resembles that of Delphinidae in basic structure. The teeth show extreme attritional and/or abrasive wear, which has obliterated the crowns. Like Mammalodon colliveri, M. hakataramea was probably raptorial or a benthic suction feeder.

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来源期刊

Memoirs of Museum Victoria Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

1.10

自引率

0.00%

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