Recommended Conferences

International Conference on Climate Change Global Warming

Berlin, Germany
Related Subjects
 

Conodont community structure around the “Kellwasser mass extinction event” (Frasnian/Famennian boundary interval)

Author(s): Schulke I

Abstract

Mass extinction events encompass three different intervals: extinction, survival, and recovery. While studies concerning extinction patterns of taxa have frequently been carried out, only a few studies focus on the recovery of faunas, especially at the Frasnian/Fammenian boundary (Kellwasser Event). This paper examines extinction and recovery fabric of conodonts, a nektonic group highly abundant within pelagic calcareous sediments of this stratigraphic interval throughout the world. On the basis of high-resolution stratigraphy and statistic analysis of species diversity, the above three intervals can be distinguished within extinction and recovery phases of conodonts at the Kellwasser Event. Additionally, conodont samples and lithology of the Sessacker Trench VI section allow to subdivide at least the conodont extinction within the Frasnian/Famennian boundary interval which was interpreted as merely single stepped into four different steps. Dependent on their niche’s position within the Late Frasnian ecosystem, the taxa of this fossil group reveal different evolutionary “strategies” or mechanisms to survive mass extinction.

Similar Articles

Lethaia 28: 187-188

Author(s): Purnell MA (1995A) Large eyes and vision in conodonts

Conodonts and the first vertebrates

Author(s): Purnell MA, Aldridge RJ, Donoghue PCJ, Gabbott SE

Hagfish predatory and slime defense mechanism

Author(s): Zintzen V, Roberts CD, Anderson NJ, Stewart AL, Struthers CD, et al.

A lamprey from the devonian period of South Africa

Author(s): Gess RW, Coates MI, Rubidge BS

The conodont animal

Author(s): Briggs DEG, Clarkson ENK, Aldridge RJ

A lamprey from the Cretaceous Jehol biota of China

Author(s): Chang M, Zhang J, Miao D

Mass extinctions and sea-level changes

Author(s): Hallam A, Wignall PB

Lamprey metamorphosis

Author(s): Manzon RG, Youson JH, Holmes JA