On a moderately diverse continental ichnofauna from the Permian Ikakern Formation (Argana Basin, Western High Atlas, Morocco)

Hminna, Abdelkbir; Voigt, Sebastian; Saber, Hafid; Schneider, Jörg W.; Hmich, Driss

doi:10.1016/j.jafrearsci.2012.03.011

Cited by 35 publications

(19 citation statements)

References 21 publications

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“…6A) and UGKU 1965 correspond well with tracks of Hyloidichnus Gilmore, 1927. Hyloidichnus is similar to Varanopus Moodie, 1929; both ichnotaxa mainly differ in the relative length of the fifth digit of the pes imprint and by the size range of the imprints (Voigt et al, 2009Hminna et al, 2012;Marchetti et al, 2013). Digit V of the pes imprint is about the length of digit I in Hyloidichnus, whereas it is as long as II or III in Varanopus.…”

Section: Hyloidichnusmentioning

confidence: 96%

Permian tetrapod footprints from the Spanish Pyrenees

Voigt¹,

Haubold

2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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Section: Hyloidichnusmentioning

confidence: 96%

Permian tetrapod footprints from the Spanish Pyrenees

Voigt¹,

Haubold

2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…However, the single Moroccan record (Hminna et al, 2012), and the recent discoveries in Niger (Looy et al, 2016), also provide evidence for the affinity of these two African sites with the European ones. Together, these assemblages all share the common presence of voltzialean conifers, allowing the recognition of a 'paratropical' biome, as suggested by Looy et al (2016).…”

Section: Late Permian Biogeographymentioning

confidence: 92%

“…Rare elements, but with comparable percentages, are lepospondyl and temnospondyl amphibians (diplocaulid nectrideans, 9%; indeterminate temnospondyl amphibians, 9.2%), and archosauromorphs (9.1%). De Koning (1957) reported the presence of Voltzia heterophylla from Jebel Tafilalt, which currently is the only documented plant taxon from the Ikakern Formation (Hminna et al, 2012). …”

Section: Moroccomentioning

confidence: 99%

“…The Ordos and Junggar biotas are grouped by their floral similarity, and are linked to the ((Morocco, Niger) ((South Urals, Zechstein), Southern Alps)) cluster by the presence of conifers and pareiasaurs (Wang, 1985;Wang and Wang, 1986;Schweitzer, 1986;Uhl and Kerp, 2002;Sun, 2006;Hminna et al, 2012;Kustatscher et al, 2017). This boreal + Niger cluster exclusively includes two biomes: the desert hot and the cold steppe, which have aridity as a common feature.…”

Section: Late Permian Biogeographymentioning

confidence: 99%

“…Lopingian tetrapod faunas, yielding skeletal and/or footprint remains, are known from Scotland (Benton and Walker, 1985), Great Britain and Germany (Benton and Walker, 1985;Sues and Boy, 1988), Poland (Ptaszyński and Niedźwiedzki, 2004; though its age is controversial, see Bachman and Kozur, 2004;Nawrocki et al, 2005;Racki, 2005), Italy (Conti et al, 1977), Morocco (Jalil and Dutuit, 1996;Voigt et al, 2010;Hminna et al, 2012), Tunisia (Newell et al, 1976), Malawi (Haughton, 1926;Jacobs et al, 2005;Kruger et al, 2015), Mozambique (Latimer et al, 1995;Castanhinha et al, 2013), Tanzania (Gay and Cruickshank, 1999;Sidor et al, 2010;Angielczyk et al, 2014a), Zimbabwe (Bond, 1973;Gaffney and Mc Kenna, 1979), Zambia (Drysdall and Kitching, 1963;Kemp, 1976;Lee et al, 1997;Angielczyk et al, 2014b), Niger (Sidor et al, 2005;Smith et al, 2015), South Africa (MacRae, 1990;Smith, 1993aSmith, , 1993bDe Klerk, 2002;Ward et al, 2005;Rubidge, 2005;Smith et al, 2012;Rubidge et al, 2016), Madagascar (Mazin and King, 1991;Schoch and Milner, 2000), Brazil (Battail, 2000;…”

Section: Introductionmentioning

confidence: 99%

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Late Permian (Lopingian) Terrestrial Ecosystems: A Global Comparison With New Data From the Low Latitude Bletterbach Biota

Petti¹,

Bernardi²,

Kustatscher³

et al. 2017

Geological Society of America Abstracts With Programs

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Keywords:Tetrapoda flora phytoprovinces plant-insect interactions climate endemism latitudinal diversity gradient A B S T R A C TThe late Palaeozoic is a pivotal period for the evolution of terrestrial ecosystems. Generalised warming and aridification trends resulted in profound floral and faunal turnover as well as increased levels of endemism. The patchiness of well-preserved, late Permian terrestrial ecosystems, however, complicates attempts to reconstruct a coherent, global scenario. In this paper, we provide a new reconstruction of the Bletterbach Biota (Southern Alps, NE Italy), which constitutes a unique, low-latitude record of Lopingian life on land. We also integrate floral, faunal (from skeletal and footprint studies), and plant-insect interaction data, as well as global climatic interpretations, to compare the composition of the 14 best-known late Permian ecosystems. The results of this ecosystem-scale analysis provide evidence for a strong correlation between the distribution of the principal clades of tetrapod herbivores (dicynodonts, pareiasaurs, captorhinids), phytoprovinces and climatic latitudinal zonation. We show that terrestrial ecosystems were structured and provincialised at high taxonomic levels by climate regions, and that latitudinal distribution is a key predictor of ecosystem compositional affinity. A latitudinal diversity gradient characterised by decreasing richness towards higher latitudes is apparent: mid-to lowlatitude ecosystems had the greatest amount of high-level taxonomic diversity, whereas those from high latitudes were dominated by small numbers of higher taxa. The high diversities of tropical ecosystems stem from their inclusion of a mixture of late-occurring holdovers from the early Permian, early members of clades that come to prominence in the Triassic, and contemporary taxa that are also represented in higher latitude assemblages. A variety of evidence suggests that the Permian tropics acted as both a cradle (an area with high origination rates) and museum (an area with low extinction rates) for biodiversity.

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New occurrences of tetrapod ichnotaxa from the Permian Orobic Basin (Northern Italy) and critical discussion of the age of the ichnoassociation

Marchetti

2016

Papers in Palaeontology

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Abstract:The late Cisuralian (Artinskian-Kungurian) is a key time interval for Permian tetrapod evolution. In all the main low-latitude Pangean sites, the fossil footprint record clearly shows a diversification and dispersal of non-synapsid amniote tracks compared to the early Cisuralian (AsselianSakmarian). However, data on latest Cisuralian (i.e. late Kungurian) sites are quite fragmentary. A new ichnotaxonomic study was carried out in the central part of the Orobic Basin, where the highly-fossiliferous Pizzo del Diavolo formation crops out and can potentially cover this gap in knowledge. The following tetrapod ichnogenera were identified: Amphisauropus, Batrachichnus, cf. Dimetropus, Dromopus, Erpetopus, Hyloidichnus, Limnopus, cf. Merifontichnus and Varanopus; they can be attributed to seymouriamorph and temnospondyl amphibians; pelycosaur synapsids; and diapsid, parareptile and captorhinid reptiles. Dimetropus and Merifontichnus are identified for the first time in the Permian of Italy. The ichnoassociation, in agreement with the radiometric dating of the underlying Cabianca formation, suggests a late Kungurian (latest Cisuralian) age for the Pizzo del Diavolo formation. It includes the youngest and most diverse non-synapsid amniote ichnofauna of the Cisuralian with five different ichnogenera and possibly six ichnospecies, and thus constitutes a key area for the study of eureptile and parareptile dispersal at low latitudes of Pangaea in the time span that immediately pre-dates the first therapsid synapsid radiation.

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On a moderately diverse continental ichnofauna from the Permian Ikakern Formation (Argana Basin, Western High Atlas, Morocco)

Cited by 35 publications

References 21 publications

Permian tetrapod footprints from the Spanish Pyrenees

Permian tetrapod footprints from the Spanish Pyrenees

Late Permian (Lopingian) Terrestrial Ecosystems: A Global Comparison With New Data From the Low Latitude Bletterbach Biota

New occurrences of tetrapod ichnotaxa from the Permian Orobic Basin (Northern Italy) and critical discussion of the age of the ichnoassociation

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