Results 161 to 170 of about 8,052 (221)
Microbial metabolism amplified warming in three Phanerozoic hyperthermal events. [PDF]
Nat CommunWu Y +10 more
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Atmospheric CO<sub>2</sub> drawdown during the Emeishan flood basalt volcanism. [PDF]
Nat CommunShen J, Zhang YG, Yuan DX, Xu YG.
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Reconstruction of Phanerozoic climate using carbonate clumped isotopes and implications for the oxygen isotopic composition of seawater. [PDF]
Proc Natl Acad Sci U S AThiagarajan N +6 more
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Morphogenesis of pteraspid heterostracan oral plates and the evolutionary origin of teeth. [PDF]
R Soc Open SciGrohganz M +3 more
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Finite element and microstructural analyses indicate that pteraspid heterostracan oral plate microstructure was adapted to a mechanical function. [PDF]
PalaeontologyGrohganz M +5 more
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Age of the Tamba Group aong the Hozugawa "Anticline", Western Hills of Kyoto, Southwest Japan [PDF]
Isozaki, Yukio, Matsuda, Tetsuo
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ʻConodont pearlsʼ do not belong to conodonts
Lethaia, 2021We investigated the mineralogical and chemical signatures of enigmatic microspherules commonly recovered in conodont residues and referred to in literature as 'conodont pearls.' Comparison between these 'pearls,' associated conodonts and other phosphatic skeletal elements present in the same stratigraphical level was run in an effort to reveal any ...
Ferretti A. +4 more
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Trends in Ecology & Evolution, 1996
The discovery of fossilized conodont soft tissues has led to suggestions that these enigmatic animals were among the earliest vertebrates and that they were macrophagous, using their oropharyngeal skeletal apparatus to capture and process prey. These conclusions have proved controversial.
Aldridge, RJ, Purnell, MA
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The discovery of fossilized conodont soft tissues has led to suggestions that these enigmatic animals were among the earliest vertebrates and that they were macrophagous, using their oropharyngeal skeletal apparatus to capture and process prey. These conclusions have proved controversial.
Aldridge, RJ, Purnell, MA
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Science, 1976
Conodonts are zoologically enigmatic, toothlike phosphatic microfossils occurring in marine sedimentary rocks ranging in age from Cambrian to Triassic. Dimpled spheres of less than 1 millimeter in diameter are sporadic associates of conodonts and have identical chemical composition and microstructure.
B F, Glenister, G, Klapper, K M, Chauff
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Conodonts are zoologically enigmatic, toothlike phosphatic microfossils occurring in marine sedimentary rocks ranging in age from Cambrian to Triassic. Dimpled spheres of less than 1 millimeter in diameter are sporadic associates of conodonts and have identical chemical composition and microstructure.
B F, Glenister, G, Klapper, K M, Chauff
openaire +2 more sources