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Conodonts and conodont biostratigraphy of the Middle and Upper Ordovician in north China
, 1993 openaire +1 more source
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Conodont affinity and chordate phylogeny
Biological Reviews, 2000ABSTRACTCurrent information on the conodontsClydagnathus windsorensis(Globensky) andPromissum pulchrumKovács‐ Endrödy, together with the latest interpretations of conodont hard tissues, are reviewed and it is concluded that sufficient evidence exists to justify interpretation of the conodonts on a chordate model.
Philip C J Donoghue, Richard J Aldridge
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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
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Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 1993
Abstract Specimens from the Carboniferous Granton shrimp bed of Edinburgh, Scotland, provide the most complete record of conodont anatomy. Ten specimens are now known, six of which are previously undescribed, and form the basis of a new description and restoration of the conodont animal.
ALDRIDGE, RJ +4 more
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Abstract Specimens from the Carboniferous Granton shrimp bed of Edinburgh, Scotland, provide the most complete record of conodont anatomy. Ten specimens are now known, six of which are previously undescribed, and form the basis of a new description and restoration of the conodont animal.
ALDRIDGE, RJ +4 more
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Lethaia, 1983
A unique specimen of a small, elongate, soft-bodied animal from the Lower Carboniferous of the Edinburgh district, Scotland, is described. The head expands anteriorly into two lobate structures flanking a central lumen; behind this lies a conodont apparatus, apparently in situ, consisting of an aligned set of ramiform elements followed by a pair of ...
Derek E. G. Briggs +2 more
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A unique specimen of a small, elongate, soft-bodied animal from the Lower Carboniferous of the Edinburgh district, Scotland, is described. The head expands anteriorly into two lobate structures flanking a central lumen; behind this lies a conodont apparatus, apparently in situ, consisting of an aligned set of ramiform elements followed by a pair of ...
Derek E. G. Briggs +2 more
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Conodonts and Biostratigraphic Correlation
Annual Review of Earth and Planetary Sciences, 1986At its 1969 meeting, The Pander Society convened a symposium on conodont biostratigraphy that resulted in a volume (Sweet & Bergstrom 1971a) in which specialists systematically summarized the status of conodont-based biostratigraphy up to 1969. One function of such a volume is to direct attention to areas that need more work and to focus on conclusions
Walter C. Sweet, Stig M. Bergstrom
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Geological Society of America Bulletin, 1969
The known distribution of conodonts in the Cambrian of Europe, Asia, and North America is not uniform, but no major discrepancies in stratigraphic range of form species has been noted. The oldest reliably dated conodont known is a Hertzina species which is known in upper Middle Cambrian rocks in Nevada and Bornholm (Denmark).
DAVID L. CLARK, JAMES F. MILLER
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The known distribution of conodonts in the Cambrian of Europe, Asia, and North America is not uniform, but no major discrepancies in stratigraphic range of form species has been noted. The oldest reliably dated conodont known is a Hertzina species which is known in upper Middle Cambrian rocks in Nevada and Bornholm (Denmark).
DAVID L. CLARK, JAMES F. MILLER
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