Malinger
发表于 2025-3-21 16:49:32
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不可接触
发表于 2025-3-21 20:57:25
Environmental Convergence, where very similar environmental/ecological settings appear at widely separated moments in geological time. In this and other cases, non symmetry in the fossilized biofilms is key to recognition of ancient organo sedimentary structures. These can appear at any time or in any place when aquatic cond
Foreknowledge
发表于 2025-3-22 03:43:05
Mat Farmers,rmation structures are very ancient Proterozoic trace fossils. . occupied a now extinct ‘mat–cutter’ niche. The oldest biomat–associated ichnofossils occur in the Mina el Mesquite Formation (Cerro Las Bolas Group) near Sahuaripa, México. . . n. ichnogen. n. isp. provides evidence for rudimentary mic
NOCT
发表于 2025-3-22 06:27:48
Etch Stop,top defense), served as an effective deterrent to Cambrian shell–boring predators. Family Cloudinidae was likely driven to extinction by first boring, and later crushing, predators. . provides an excellent example of the predator–prey escalation that took place during the Early Cambrian.
penance
发表于 2025-3-22 12:04:56
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fetter
发表于 2025-3-22 14:41:07
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fetter
发表于 2025-3-22 20:57:45
Cambrian Cannibals,pecies. Genocide and cannibalism can be traced back to the Early Cambrian, as can cooperative behavior such as group migration. It is plausible to predict that eusociality (at least in its rudimentary sub-social form) will eventually be discovered in the Lower Cambrian fossils record, as an aspect o
事先无准备
发表于 2025-3-22 23:00:35
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提炼
发表于 2025-3-23 01:23:58
First Fruits,) simultaneously in the earliest Jurassic at a time of profound global cooling in the wake of a major mass extinction. Where fossils are rare, due to their enclosing strata being deposited shortly after a mass extinction or for other reasons, each fossil discovery is potentially critical.
Regurgitation
发表于 2025-3-23 09:32:48
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