Amazighopsidae, a new family of decapod macruran astacideans from the late Cretaceous (Cenomanian-Turonian) of Gara Sbaa, Southeastern Morocco

We investigate a new decapod macruran discovered in deposits identified at the top of Gara Sbaa slope, located in SE Morocco, along the “Hamada des Kem Kem”, close to the Algerian border. These fossiliferous levels are known in the literature as part of the Late Cretaceous Kem Kem beds. We report th...

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Main Authors: Alessandro Garassino, Giovanni Pasini
Format: Article
Language:English
Published: PAGEPress Publications 2018-02-01
Series:Natural History Sciences
Subjects:
Online Access:https://sisn.pagepress.org/index.php/nhs/article/view/358
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author Alessandro Garassino
Giovanni Pasini
author_facet Alessandro Garassino
Giovanni Pasini
author_sort Alessandro Garassino
collection DOAJ
description We investigate a new decapod macruran discovered in deposits identified at the top of Gara Sbaa slope, located in SE Morocco, along the “Hamada des Kem Kem”, close to the Algerian border. These fossiliferous levels are known in the literature as part of the Late Cretaceous Kem Kem beds. We report the new family Amazighopsidae, created to accommodate Amazighopsis cretacica n. gen., n. sp. Indeed, some morphological characters, such as a short rostrum with the serrate upper margin, cervical and antennal grooves not forming the characteristic W-shaped pattern, the telson without diaeresis, lateral margins of the telson with one movable median spine and two movable distal spines, and the uropodal exopod without diaeresis, are so peculiar and unique to justify the erection of the new family tentatively ascribed to the infraorder Astacidea.
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spelling doaj.art-a6de938184f54be4a87ceb28425de60d2022-12-21T19:42:11ZengPAGEPress PublicationsNatural History Sciences2385-04422385-09222018-02-015110.4081/nhs.2018.358Amazighopsidae, a new family of decapod macruran astacideans from the late Cretaceous (Cenomanian-Turonian) of Gara Sbaa, Southeastern MoroccoAlessandro Garassino0Giovanni Pasini1Sezione di Paleontologia degli Invertebrati, Museo di Storia Naturale, MilanoAppiano Gentile (CO)We investigate a new decapod macruran discovered in deposits identified at the top of Gara Sbaa slope, located in SE Morocco, along the “Hamada des Kem Kem”, close to the Algerian border. These fossiliferous levels are known in the literature as part of the Late Cretaceous Kem Kem beds. We report the new family Amazighopsidae, created to accommodate Amazighopsis cretacica n. gen., n. sp. Indeed, some morphological characters, such as a short rostrum with the serrate upper margin, cervical and antennal grooves not forming the characteristic W-shaped pattern, the telson without diaeresis, lateral margins of the telson with one movable median spine and two movable distal spines, and the uropodal exopod without diaeresis, are so peculiar and unique to justify the erection of the new family tentatively ascribed to the infraorder Astacidea.https://sisn.pagepress.org/index.php/nhs/article/view/358CrustaceaDecapodaAstacideaLate CretaceousMorocco.
spellingShingle Alessandro Garassino
Giovanni Pasini
Amazighopsidae, a new family of decapod macruran astacideans from the late Cretaceous (Cenomanian-Turonian) of Gara Sbaa, Southeastern Morocco
Natural History Sciences
Crustacea
Decapoda
Astacidea
Late Cretaceous
Morocco.
title Amazighopsidae, a new family of decapod macruran astacideans from the late Cretaceous (Cenomanian-Turonian) of Gara Sbaa, Southeastern Morocco
title_full Amazighopsidae, a new family of decapod macruran astacideans from the late Cretaceous (Cenomanian-Turonian) of Gara Sbaa, Southeastern Morocco
title_fullStr Amazighopsidae, a new family of decapod macruran astacideans from the late Cretaceous (Cenomanian-Turonian) of Gara Sbaa, Southeastern Morocco
title_full_unstemmed Amazighopsidae, a new family of decapod macruran astacideans from the late Cretaceous (Cenomanian-Turonian) of Gara Sbaa, Southeastern Morocco
title_short Amazighopsidae, a new family of decapod macruran astacideans from the late Cretaceous (Cenomanian-Turonian) of Gara Sbaa, Southeastern Morocco
title_sort amazighopsidae a new family of decapod macruran astacideans from the late cretaceous cenomanian turonian of gara sbaa southeastern morocco
topic Crustacea
Decapoda
Astacidea
Late Cretaceous
Morocco.
url https://sisn.pagepress.org/index.php/nhs/article/view/358
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AT giovannipasini amazighopsidaeanewfamilyofdecapodmacruranastacideansfromthelatecretaceouscenomanianturonianofgarasbaasoutheasternmorocco