BORING SPONGES (ICHNOGENUS ENTOBIA) IN MESOZOIC LITHOCODIUM CALCIMICROBIAL CRUSTS

Autor:	ANTONIETTA CHERCHI, ROLF SCHROEDER
Jazyk:	angličtina
Rok vydání:	2010
Předmět:	Entobia Lithocodium Boring sponges Calcimicrobial crusts Norian-Rhaetian Aptian Geology QE1-996.5 Paleontology QE701-760
Zdroj:	Rivista Italiana di Paleontologia e Stratigrafia, Vol 116, Iss 3 (2010)
Druh dokumentu:	article
ISSN:	0035-6883 2039-4942
DOI:	10.13130/2039-4942/6393
Popis:	Globular cavities in calcimicrobial Lithocodium crusts are interpreted as trace fossils of boring sponges belonging to the ichnogenus Entobia. Two informal groups can be differentiated: a Norian-Rhaetian group from Tabas area(NE Iran) and Adnet (near Salzburg, Austria), characterized by large chambers and broad bifurcating apertural canals, and a second group from the Aptian of central Italy presenting smaller chambers and canals. The distal ends of these canals are closed by alveolar structures, preventing water circulation and leading to the death of the sponge.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/89eb098054fc4acaab1dd26bb12ff87f Zobrazit plný text záznamu View record in DOAJ