作者: Stephen K. Donovan , Sten L. Jakobsen
DOI: 10.1016/J.PALAEO.2009.04.017
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摘要: Abstract Wisshak et al. (2009. The ‘living-fossil community’ of the cyrtocrinid Cyathidium foresti and deep-sea oyster Neopycnodonte zibrowii (Azores Archipelago). Palaeogeography, Palaeoclimatology, Palaeoecology 271, 77–83) criticized speculation by Donovan Jakobsen that an association Danian cyrtocrinids barnacles may have occurred on a floating log. This is unlikely to be allochthonous; no convenient hard substrate (= overhang) for attachment these crinoids was available close at hand; holopodid migration into deeper water about this time, but shallow relic cannot dismissed out strict Lyellian comparison with modern occurrences not necessarily correct. We stand our original speculation.