The Permian Period

Henderson, Charles M.; Davydov, Vladimir I.; Wardlaw, Bruce R.; contributors,; Gradstein, Felix M.; Hammer, Øyvind

doi:10.1016/b978-0-444-59425-9.00024-x

Cited by 91 publications

(87 citation statements)

References 28 publications

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“…A correlation with the international scales of Henderson et al (2012) is suggested below ( Figure 5). …”

Section: Biostratigraphymentioning

confidence: 95%

“…minuta, and Rectostipulina quadrata Zone (samples P47 to the top FIGURE 5. Proposed correlation between the international and Tethyan scales of the Permian system (according to Leven, 1967Leven, , 1975Leven, , 1981Leven, , 1992Leven, , 1997Henderson et al, 2012;and D. Vachard (unpublished data)). Abbreviations: e = early l/m = late/middle.…”

Section: Biostratigraphymentioning

confidence: 99%

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Middle-Late Permian (Murgabian-Djulfian) foraminifers of the northern Maku area (western Azerbaijan, Iran

Nejad

Vachard

Siabeghodsy³

et al. 2015

Palaeontologia Electronica

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“…A correlation with the international scales of Henderson et al (2012) is suggested below ( Figure 5). …”

Section: Biostratigraphymentioning

confidence: 95%

Section: Biostratigraphymentioning

confidence: 99%

Middle-Late Permian (Murgabian-Djulfian) foraminifers of the northern Maku area (western Azerbaijan, Iran

Nejad

Vachard

Siabeghodsy³

et al. 2015

Palaeontologia Electronica

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“…7A) comparable to forms recently illustrated by Lucas et al (2015), as Abadehella n. sp., from zone 8B of the Robledo Mountains Formation, New Mexico, considered as early Leonardian (late Artinskian according to these authors and Henderson et al, 2012). They also reported that -similar primitive Abadehella‖ have been found in the Zottachkopf Formation, probably middle to upper Artinskian, of the Carnic Alps (Europe).…”

Section: Accepted Manuscriptmentioning

confidence: 74%

“…7K). Ueno (2006) Henderson et al, 2012). At locality 3, fusulinids are extremely rare but include an elongate form that may be M. wanneri.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Faunal similarity in Madagascan and South Indian Late Cretaceous vertebrate faunas

Halliday

Prasad

Goswami

2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…The transition from the J. postserrata Zone to the J. shannoni Zone takes place within the uppermost Lamar Limestone Member (Lambert et al, 2010), thus indicating a lower Capitanian age (ca. 264 ma) (Henderson et al, 2012). The uppermost Lamar Limestone Member also marks the transition from J. shannoni to J. altudaensis (Kozur, 1992).…”

Section: Geologic Settingmentioning

confidence: 99%

A diverse assemblage of Permian echinoids (Echinodermata, Echinoidea) and implications for character evolution in early crown group echinoids

2017

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The Permian is regarded as one of the most crucial intervals during echinoid evolution because crown group echinoids are first widely known from the Permian. New faunas provide important information regarding the diversity of echinoids during this significant interval as well as the morphological characterization of the earliest crown group and latest stem group echinoids. A new fauna from the Capitanian Lamar Member of the Bell Canyon Formation in the Guadalupe Mountains of West Texas comprises at least three new taxa, includingEotiaris guadalupensisThompson n. sp. an indeterminate archaeocidarid, andPronechinus? sp. All specimens represented are silicified and known from disarticulated or semiarticulated interambulacral and ambulacral plates and spines. This assemblage is one of the most diverse echinoid assemblages known from the Permian and, as such, informs the paleoecological setting in which the earliest crown group echinoids lived. This new fauna indicates that crown group echinoids occupied the same environments as stem group echinoids of the Archaeocidaridae and Proterocidaridae. Furthermore, the echinoids described herein begin to elucidate the order of character transitions that likely took place between stem group and crown group echinoids. At least one of the morphological innovations once thought to be characteristic of early crown group echinoids, crenulate tubercles, was in fact widespread in a number of stem group taxa from the Permian as well. Crenulate tubercles are reported from two taxa, and putative cidaroid style U-shaped teeth are present in the fauna. The presence of crenulate tubercles in the archaeocidarid indicates that crenulate tubercles were present in stem group echinoids, and thus the evolution of this character likely preceded the evolution of many of the synapomorphies that define the echinoid crown group.

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The Permian Period

Cited by 91 publications

References 28 publications

Middle-Late Permian (Murgabian-Djulfian) foraminifers of the northern Maku area (western Azerbaijan, Iran

Middle-Late Permian (Murgabian-Djulfian) foraminifers of the northern Maku area (western Azerbaijan, Iran

Faunal similarity in Madagascan and South Indian Late Cretaceous vertebrate faunas

A diverse assemblage of Permian echinoids (Echinodermata, Echinoidea) and implications for character evolution in early crown group echinoids

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