Middle Jurassic Zoophycos and Chondrites from the Mélah Formation of Saharan Atlas, Algeria

Middle Jurassic Zoophycos and Chondrites from the Mélah Formation of Saharan Atlas, Algeria

The ichnogenera Zoophycos and Chondrites are described for the first time from the Middle Jurassic of Algeria. The trace fossil assemblage recovered from the Mélah Formation contains seven ichnospecies (Chondrites targionii, C. ?intricatus, Zoophycos brianteus, Z. cauda-galli, Zoophycos isp. A, Zoop...

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Bibliographic Details
Main Authors: Fayçal Mekki, Li-Jun Zhang, Olev Vinn, Ursula Toom, Madani Benyoucef, Mohamed Bendella, Emad Bouchemla, Mustapha Bensalah, Mohammed Adaci
Format: Article
Language:English
Published: Estonian Academy Publishers 2019-10-01
Series:Estonian Journal of Earth Sciences
Subjects:
trace fossils
zoophycos
chondrites
deep offshore
aalenian
bajocian
north africa.
Online Access:http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2019/issue_4/earth-2019-4-190-198.pdf
Description
Summary:The ichnogenera Zoophycos and Chondrites are described for the first time from the Middle Jurassic of Algeria. The trace fossil assemblage recovered from the Mélah Formation contains seven ichnospecies (Chondrites targionii, C. ?intricatus, Zoophycos brianteus, Z. cauda-galli, Zoophycos isp. A, Zoophycos isp. B and Zoophycos isp. C), which all represent the Zoophycos ichnofacies. Chondrites and Zoophycos in the Mélah Formation were made by unknown worm-like invertebrates in a deeper offshore or a shallow bathyal environment (below storm weather wave base) and may indicate oxygen depletion within the sediment.
ISSN:1736-4728
1736-7557

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