Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.pgeola.2018.08.006 |
A new record and a new ichnospecies of Arachnostega from the Middle Miocene of Egypt | |
Vinn, Olev1; El-Sabbagh, Ahmed M.2; El-Hedeny, Magdy M.2; Rashwan, Mohamed A.3; Al Farraj, Saleh A.4 | |
通讯作者 | El-Hedeny, Magdy M. |
来源期刊 | PROCEEDINGS OF THE GEOLOGISTS ASSOCIATION
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ISSN | 0016-7878 |
出版年 | 2018 |
卷号 | 129期号:6页码:790-796 |
英文摘要 | The ichnogenus Arachnostega Bertling, 1992 is recorded for the first time from a bioeroded, coral-rich, Middle Miocene limestone bed in the middle Siwa Escarpment Member (Marmarica Formation) at Siwa Oasis, northern Western Desert of Egypt. These burrowing traces are preserved on the surface of a few internal moulds of bivalves and gastropods. Until now, the ichnogenus Arachnostega included a single ichnospecies, A. gastrochaenae Bertling, 1992. In the material studied herein, two ichnospecies are identified, described, illustrated and compared with other, similar traces. One of these is a new ichnospecies of Arachnostega; this is here named A. siwaensis ichnosp. nov. It is distinguished from A. gastrochaenae in the possession of tunnels that usually branch in a V-pattern; intervals of ramification are longest in the main branch and decrease in second- and third-order branches. Arachnostega traces were produced in a warm, low-energy, shallow-marine (<10 m water depth) environment. Polychaetes are the most likely producers of marine Arachnostega, which are commonly occurred in the same studied bed. This new occurrence is significant in extending the known stratigraphical and geographical ranges of Arachnostega into the Middle Miocene of Egypt. (C) 2018 The Geologists’ Association. Published by Elsevier Ltd. All rights reserved. |
英文关键词 | Burrows New ichnospecies Cenozoic North Africa |
类型 | Article |
语种 | 英语 |
国家 | Estonia ; Egypt ; Saudi Arabia |
收录类别 | SCI-E |
WOS记录号 | WOS:000454380500007 |
WOS关键词 | WESTERN DESERT ; SIWA OASIS ; PALEOECOLOGY ; REEFS ; SUCCESSION ; GROWTH |
WOS类目 | Geology ; Paleontology |
WOS研究方向 | Geology ; Paleontology |
来源机构 | King Saud University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/212366 |
作者单位 | 1.Univ Tartu, Dept Geol, Ravila 14A, EE-50411 Tartu, Estonia; 2.Alexandria Univ, Fac Sci, Dept Geol, Alexandria 21568, Egypt; 3.Alexandria Univ, Fac Educ, Dept Biol & Geol Sci, Alexandria 14037, Egypt; 4.King Saud Univ, Coll Sci, Riyadh, Saudi Arabia |
推荐引用方式 GB/T 7714 | Vinn, Olev,El-Sabbagh, Ahmed M.,El-Hedeny, Magdy M.,et al. A new record and a new ichnospecies of Arachnostega from the Middle Miocene of Egypt[J]. King Saud University,2018,129(6):790-796. |
APA | Vinn, Olev,El-Sabbagh, Ahmed M.,El-Hedeny, Magdy M.,Rashwan, Mohamed A.,&Al Farraj, Saleh A..(2018).A new record and a new ichnospecies of Arachnostega from the Middle Miocene of Egypt.PROCEEDINGS OF THE GEOLOGISTS ASSOCIATION,129(6),790-796. |
MLA | Vinn, Olev,et al."A new record and a new ichnospecies of Arachnostega from the Middle Miocene of Egypt".PROCEEDINGS OF THE GEOLOGISTS ASSOCIATION 129.6(2018):790-796. |
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