New discoveries of archosaur and other tetrapod footprints from the Timezgadiouine Formation (Irohalene Member, Upper Triassic) of the Argana Basin, western High Atlas, Morocco – Ichnotaxonomic implications

Lagnaoui, Abdelouahed; Klein, Hendrik; Saber, Hafid; Fekkak, Abdelilah; Belahmira, Abouchouaib; Schneider, Joerg W.

doi:10.1016/j.palaeo.2016.03.022

Cited by 21 publications

(2 citation statements)

References 22 publications

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“…The Argana Basin occupies an important place in Triassic non-marine paleontology. It is known to produce one of the most important Triassic fossil records of a diverse continental vertebrate fauna and ichnofauna (Dutuit 1976(Dutuit , 1979Jalil 1999;Klein et al 2009Klein et al , 2011Lagnaoui et al 2012Lagnaoui et al , 2016Khalloufi and Jalil 2020;Zouheir et al 2020). The Basin is located in an important position in Pangea in the present day Western High Atlas of Morocco (Fig.…”

Section: Introductionmentioning

confidence: 99%

Laurussian-Aspect of the Coprolite Association From the Upper Triassic (Carnian) of the Argana Basin, Morocco

Zouheir

Hunt²,

Hminna

et al. 2023

Palaios

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A large collection of vertebrate coprolites derives from a debris flow conglomerate in the Upper Triassic Irohalene Member (Carnian) of the Timezgadiouine Formation, northern Argana Basin, Morocco. The coprolites are classified into 14 different morphotypes (MA to MN) based on their size, shape, and surface texture that are divided into three groups: striated coprolites; spiral and scroll-like coprolites; and non-spiral coprolites lacking striations. The great variety of morphotypes suggests the coprolites correspond to a variety of terrestrial and aquatic carnivorous producers. The carnivore coprolites lithified rapidly and were deposited in a high-energy sheetflood. The majority of the coprolites were produced by semi-aquatic and terrestrial tetrapods, with a small percentage produced by fish. The occurrence of Dicynodontocopros, common Alococopros, and some heteropolar forms with affinities to Heteropolacopros, are consistent with a late Carnian age for the Irohalene Member. The Irohalene coprolites are mostly similar to those of the coprofaunas of late Carnian age (Otischalkian–Adamanian) in the lower Chinle Group of the western United States in the co-occurrence of Alococopros and Dicynodontocopros. Significantly, this Moroccan coprofauna from Gondwana has close Laurussian relationships.

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Section: Introductionmentioning

confidence: 99%

Laurussian-Aspect of the Coprolite Association From the Upper Triassic (Carnian) of the Argana Basin, Morocco

Zouheir

Hunt²,

Hminna

et al. 2023

Palaios

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“…Occurrences are known from central Europe (Dzik, 2001;Kimmig and Arp, 2010;Brusatte et al, 2013;Butler et al, 2019), southern Europe (Gozzi & Renesto, 2003;Mateus et al, 2014a), North America (Stocker, 2010), and Asia (Buffetaut & Ingavat, 1982;Buffetaut et al, 1988;Li et al, 2012). Fossil remains have also been discovered in Gondwana with occurrences in North Africa (Lagnaoui et al, 2016), South Africa (Burmeister et al, 2006;Barrett et al, 2020), South America (Kischlat and Lucas, 2003), and India (Datta et al, 2019(Datta et al, , 2021. Stratigraphically, they range from in the upper Middle Triassic (Ladinian, Diandongosuchus fuyuanensis Stocker et al, 2017) to the uppermost Triassic (upper Norian?-Rhaetian, Redondasaurus gregorii Hunt and Lucas, 1993).…”

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confidence: 99%

A new phytosaur species (Archosauriformes) from the Upper Triassic of Jameson Land, central East Greenland

López-Rojas

Clemmensen

Milàn³

et al. 2022

Journal of Vertebrate Paleontology

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Herein we describe phytosaurs from thin fluvial overbank sandstones of the Upper Triassic Malmros Klint Formation of the Fleming Fjord Group (central East Greenland). The new sample includes more than 150 disarticulated bones and teeth from small to large specimens belonging to at least four individuals. The fossils mostly consist of teeth and postcranial elements and permit the recognition of a new species of Mystriosuchus, M. alleroq, diagnosed by an Lshaped quadratojugal whose anterior suture trends anterodorsally and a tripartite degree of heterodonty. Humeral diaphyseal histology of one specimen reveals a fairly compact cortex that surrounds a cancellous medullary region followed by a remodeling zone containing scattered secondary osteons. Primary bone tissue is parallel-fibred with a moderate to low vascular density. The cortex is cyclically interrupted by distinct growth marks indicating a seasonal environment. A change in growth rate from moderate to low is documented within the outer cortex, indicating that at least this individual was close to somatic maturity. Mystriosuchus has formerly been known as an exclusively European taxon. The new findings support the European faunal influence in East Greenland during the Late Triassic inferred from other taxa such as temnospondyls and archosaurs. The mid-late Norian age of European Mystriosuchus suggests an additional age constraint for the vertebrate-bearing portion of the Malmros Klint Formation. http://zoobank.org/urn:lsid:zoobank.org:pub:4F91184A-4207-45ED-8214-D503161EA248 SUPPLEMENTAL DATA-Supplemental materials are available for this article for free at www.tandfonline.com/UJVP.

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Late Triassic Nonmarine Vertebrate and Invertebrate Trace Fossils and the Pattern of the Phanerozoic Record of Vertebrate Trace Fossils

Hunt¹,

Lucas

Klein³

2017

Topics in Geobiology

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New discoveries of archosaur and other tetrapod footprints from the Timezgadiouine Formation (Irohalene Member, Upper Triassic) of the Argana Basin, western High Atlas, Morocco – Ichnotaxonomic implications

Cited by 21 publications

References 22 publications

Laurussian-Aspect of the Coprolite Association From the Upper Triassic (Carnian) of the Argana Basin, Morocco

Laurussian-Aspect of the Coprolite Association From the Upper Triassic (Carnian) of the Argana Basin, Morocco

A new phytosaur species (Archosauriformes) from the Upper Triassic of Jameson Land, central East Greenland

Late Triassic Nonmarine Vertebrate and Invertebrate Trace Fossils and the Pattern of the Phanerozoic Record of Vertebrate Trace Fossils

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