heart-murmur
发表于 2025-3-23 13:26:26
Hybrider Wohlfahrtskorporatismusfore are serially dependent upon some single, ultimate cause with clocklike behavior. This hypothesis is controversal, in part because of questions regarding the identity and timing of certain extinction events and because of speculations concerning possible catastrophic extraterrestrial forcing mec
Obliterate
发表于 2025-3-23 17:56:16
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灯丝
发表于 2025-3-23 19:22:39
Gillian M. Griffiths,Cesar Milsteinric clades, and punctualistic (anagenetic) changes operating on suprageneric levels. Anagenetic characteristics, such as loss of bithecae and reduction of first order stipes (progressive atrophies from quadriradiate, through triradiate to biradiate organizational schemes) are achieved polyphyletical
epicardium
发表于 2025-3-24 00:49:16
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Nonconformist
发表于 2025-3-24 05:11:08
https://doi.org/10.1007/978-3-662-12032-3ortant ones are the following: the Lochkovian-Pragian Boundary Event (regressive), the Dalejan Event (transgressive and gradual), the Basal Choteč Event (transgressive, rather quick), and the Kačák Event (transgressive, abrupt). These events, clearly expressed in lithology and fossil content, are pr
alabaster
发表于 2025-3-24 07:11:19
Whole Mounts for Light Microscopyrified by means of fossils..2. The biologic evolution is characterized by successive decreases in diversity during the Frasnian followed by successive increases in diversity during the Famennian. The result was replacement of the Frasnian brachiopod-bryozoan-tentaculitid -trilobite -crinoidal faunal
MAL
发表于 2025-3-24 14:25:15
Hybrider Wohlfahrtskorporatismushanisms. New data on extinctions of marine animal genera are presented that display a high degree of periodicity in the Mesozoic and Cenozoic as well as a suggestion of nonstationary periodicity in the late Paleozoic. However, no periodicity is evident among the as yet poorly documented extinction events of the early and middle Paleozoic.
lesion
发表于 2025-3-24 15:00:34
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Adherent
发表于 2025-3-24 20:20:03
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hurricane
发表于 2025-3-25 01:13:47
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