首页|Copernicrinus zamorae gen.et sp.nov.,the oldest thiolliericrinid crinoid(Crinoidea,Echinodermata)from the Bajocian strata of Algeria,Africa

Copernicrinus zamorae gen.et sp.nov.,the oldest thiolliericrinid crinoid(Crinoidea,Echinodermata)from the Bajocian strata of Algeria,Africa

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The thiolliericrinids(Thiolliericrinidae)are comatulids(Comatulida),which retained their stalks as adults.Here,we report a centrodorsal from the Bajocian strata(Middle Jurassic)of the Djebel Kérdacha area,northwestern Algeria(Africa).It is the first thiolliericrinid report from outside of Europe and also the oldest representative of the Thiolliericrinidae whose first occurrence is from the Oxfordian.The crinoid is assigned to Copernicrinus zamorae gen.et sp.nov.The reported new taxon shows strong similarities with the stemless'true'comatulids,Solanocrinites;the only difference is the presence of a facet to the stem in Copernicrinus.The closest comparable thiolliericrinid to Copernicrinus is the Oxfordian Thiolliericrinus,interpreted as a descen-dant of the latter.The origin and overview of all thiolliericrinid representatives are also discussed herein.

ThiolliericrinidaeCrinoidsCoral faciesBajocianJurassicAlgeriaSouthern Tethys margin

Bartosz J.P?achno、Madani Benyoucef、Fay?al Mekki、Mohammed Adaci、Imad Bouchemla、Sreepat Jain、Marcin Krajewski、Mariusz A.Salamon

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Faculty of Biology,Institute of Botany,Jagiellonian University in Kraków,Gronostajowa Street 9,30-387 Kraków,Poland

Laboratoire de Géomatique,Écologie et Environnement,Mustapha Stambouli University of Mascara,DZ-29000 Mascara,Algeria

Abou Bekr Belkaïd University of Tlemcen,Tlemcen,Algeria

Department of Geological Sciences,Faculty of Biological and Agricultural Sciences,Mouloud Mammeri University of Tizi-Ouzou,Tizi-Ouzou,Algeria

Adama Science and Technology University,School of Applied Natural Sciences,Department of Applied Geology,P.O.Box 1888,Adama,Ethiopia

Faculty of Geology,Geophysics and Environmental Protection,AGH University of Science and Technology,Al.A.Mickiewicza 30,PL-30-059,Kraków,Poland

Faculty of Natural Sciences,University of Silesia in Katowice,Będzińska Street 60,PL-41-200 Sosnowiec,Poland

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the'Mate Projekty Badawcze 2022'(Faculty of Natural Sciences,University of Silesia in Katowice)to Mariusz A.Salamonstatutory activities of the Institute of Botany,Faculty of Biology,Jagiellonian University in KrakowAGH-UST

N18/DBS/00000216.16.140.315

2024

10.1016/j.jop.2024.02.001

古地理学报(英文版)

古地理学报(英文版)

影响因子：0.186
ISSN：
年,卷(期)：2024.13(2)
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