The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life
- X. Hou, R. Aldridge, J. Bergström, D. Siveter, D. Siveter, Xiangqian Feng
- Environmental Science, Geography
- 23 February 2004
The Chengjiang Biota is a model for the future distribution and Evolutionary Setting of Phylum Uncertain, which will help clarify the role of “superficial”organisms in the evolution of species.
The conodont animal
- D. Briggs, E. Clarkson, R. Aldridge
- Geography
- 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…
Conodont affinity and chordate phylogeny
- P. Donoghue, P. Forey, R. Aldridge
- Environmental Science, BiologyBiological Reviews of The Cambridge Philosophical…
- 1 May 2000
It is concluded that conodonts are cladistically more derived than either hagfishes or lampreys because they possess a mineralised dermal skeleton and that they are the most plesiomorphic member of the total group Gnathostomata.
ORIENTATION AND ANATOMICAL NOTATION IN CONODONTS
- M. Purnell, P. Donoghue, R. Aldridge
- GeographyJournal of Paleontology
- 1 January 2000
This work introduces new terms for orientation in conodonts and their elements, and a modified scheme of anatomical notation, which can be applied rigorously to all taxa that are known from natural assemblages or where an hypothesis of topological homology can be inferred from secondary morphological criteria.
The Cambrian Fossils of Chengjiang, China
- Hou Xian-guang, R. Aldridge, Jan Bergstrm, D. Siveter, D. Siveter, Feng Xiang-hong
- Environmental Science, Geography
- 19 December 2003
The Cambrian fossils of Chengjiang, China , The Cambrian fossils of Chengjiang, China , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
Early Silurian oceanic episodes and events
- R. Aldridge, L. Jeppsson, K. Dorning
- Environmental Science, GeographyJournal of the Geological Society
- 1 May 1993
Biotic cycles in the early Silurian correlate broadly with postulated sea-level changes, but are better explained by a model that involves episodic changes in oceanic state. Primo episodes were…
Restudy of conodont zonation and evolution across the P/T boundary at Meishan section, Changxing, Zhejiang, China
- Haishui Jiang, X. Lai, G. Luo, R. Aldridge, Kexin Zhang, P. Wignall
- Geography, Environmental Science
- 2007
The anatomy of conodonts
- R. Aldridge, D. Briggs, M. P. Smith, E. Clarkson, N. Clark
- Biology
- 29 June 1993
Ten specimens from the Carboniferous Granton shrimp bed of Edinburgh, Scotland, provide the most complete record of conodont anatomy, with evidence of incomplete preservation of ventral soft parts, at least at the anterior end of the specimens.
Evolution of paleocene to early eocene larger benthic foraminifer assemblages of the indus basin, pakistan
- Jawad Afzal, R. Aldridge, M. Williams, M. Stephenson, M. Leng
- Geography, Environmental Science
- 1 September 2011
The Paleocene–Early Eocene carbonate successions of the Indus Basin in Pakistan formed on the northwestern continental shelf margin of the Indian Plate in the eastern Tethys Ocean. Based on larger…
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