Data/hora: 03/06/2024 04:59:31

Provedor de dados: | Nature Precedings
País: | United Kingdom
Título: | Ecological control on micro-ornamentation of conodont elements
Autores: | Andrey V. Zhuravlev.
Data: | 2007-08-09
Ano: | 2007
Palavras-chave: | Earth &amp; Environment.
Resumo: | Conodonts are considered now as specific group of early Chordata or even Vertebrata. Fifteen tooth-like conodont elements of seven morphological types compose the oral apparatus of conodonts. The elements demonstrate complex morphology. All the elements bear polygonal micro-ornamentation. The ornamentation is considered as representing imprints of the epithelium cells. Ecological dependencies of the cell sizes are known for some recent organisms.&amp;#xd;&amp;#xa;The maximum cell sizes are characteristic of optimal environmental conditions. Thus, one can supposes that decreasing in cell imprint size in the conodonts marks disturbance in water temperature or/and oxygen content.&amp;#xd;&amp;#xa;
Tipo: | Manuscript

Identificador:

http://precedings.nature.com/documents/659/version/1

oai:nature.com:10101/npre.2007.659.1

http://hdl.handle.net/10101/npre.2007.659.1

Fonte: | Nature Precedings
Fonte: | Creative Commons Attribution 3.0 License