Ctenacanthus and Other Chondrichthyan Spines and Denticles From the Minturn Formation (Pennsylvanian) of Colorado

Itano, Wayne M.; Houck, Karen J.; Lockley, Martin G.

doi:10.1666/0022-3360(2003)077<0524:caocsa>2.0.co;2

Cited by 13 publications

(10 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Separation into species rests on crosssectional shape, which is not preserved in this specimen. Acondylacanthus is known from Ohio (Hansen, 1986(Hansen, , 1996, Iowa (St. John and Worthen, 1875), Colorado (Itano et al, 2003), and Arizona (Elliott et al, 2004).…”

Section: Hodnett and Elliott-mississippian And Pennsylvanian Sharks Fmentioning

confidence: 99%

Carboniferous chondrichthyan assemblages from the Surprise Canyon and Watahomigi formations (latest Mississippian–Early Pennsylvanian) of the western Grand Canyon, Northern Arizona

Hodnett

Elliott

2018

J. Paleontol.

View full text Add to dashboard Cite

Two chondrichthyan assemblages of Late Mississippian/Early Pennsylvanian age are now recognized from the western Grand Canyon of northern Arizona. The latest Serpukhovian Surprise Canyon Formation has yielded thirty-one taxa from teeth and dermal elements, which include members of the Phoebodontiformes, Symmoriiformes, Bransonelliformes, Ctenacanthiformes, Protacrodontoidea, Hybodontiformes, Neoselachii (Anachronistidae), Paraselachii (Gregoriidae, Deeberiidae, Orodontiformes, and Eugeneodontiformes), Petalodontiformes, and Holocephali. The euselachian grade taxa are remarkably diverse with four new taxa recognized here; the Protacrodontidae:Microklomax carrieaenew genus new species andNovaculodus billingsleyinew genus new species, and the Anchronistidae:Cooleyella plateranew species andAmaradontus santuciinew genus new species The Surprise Canyon assemblage also has the youngest occurrence of the elasmobranchClairina, previously only known from the Upper Devonian. The Surprise Canyon Formation represents a nearshore fluvial infilling of karstic channels, followed by a shallow marine bioherm reef, and finally deeper open water deposition. The early Bashkirian Watahomigi Formation represents open marine deposition and contains only two taxa: a new xenacanthiform,Hokomata parvanew genus new species, and the holocephalanDeltodus. The relationship between the Surprise Canyon and Watahomigi chondrichthyan assemblages and other significant coeval chondrichthyan assemblages suggests that there may have been eastern and western distinctions among the Euamerican assemblages during the Serpukhovian due to geographic separation by the formation of Pangea.UUID:http://zoobank.org/54a906b6-4873-4f84-92b5-ca0752de01aa

show abstract

Section: Hodnett and Elliott-mississippian And Pennsylvanian Sharks Fmentioning

confidence: 99%

Carboniferous chondrichthyan assemblages from the Surprise Canyon and Watahomigi formations (latest Mississippian–Early Pennsylvanian) of the western Grand Canyon, Northern Arizona

Hodnett

Elliott

2018

J. Paleontol.

View full text Add to dashboard Cite

show abstract

“…This species, however, possesses thinner ridges, when compared to those of the taxon from the Ponte Nova Farm. The genus Hybodus and Acondylacanthus, common in the Permian, also possess smooth ridges (Itano et al 2003), but their fi n spines are oval in cross section, differing from the triangular shape of the…”

Section: The Taquaral Member Paleontologymentioning

confidence: 99%

Paleontology and depositional environments of the Tatuí and Irati formations (Permian) in the Ponte Nova Farm, Ipeúna, state of São Paulo

Chahud

Pacheco

Meira

et al. 2012

RBG

View full text Add to dashboard Cite

The Paraná Basin, located at the center-eastern South America, exhibits a thick succession of Late Paleozoic deposits. Two early Permian formations are present in the State of São Paulo, Brazil: Tatuí (the oldest) and Irati. Two members make up the Irati Formation -the Taquaral (the oldest) and Assistência. This paper discusses the facies of the upper Tatuí Formation and Taquaral Member, and their fossil content, mainly at the Ponte Nova Farm. This locality exhibits well-preserved outcrops of both units, with informative data on the facies relationships and their fossils. Crustaceans and vertebrates are presented at both the Tatuí and Taquaral beds. Different facies were recognized at Ponte Nova Farm, based on lithosomes, fossils and their relationships. In this context, a complex six facies architecture displayed at this locality allowed the formulation of a paleoenvironment hypothesis for the generation of the Tatuí Formation. The fi ne cross-bedded sandstone with subordinate planeparallel strata (facies 1) might have been laid down by a rather topographic mild coastal environment. Facies 2 is the result of low energy slack water subenvironment passing to facies 3, a high energy water system. The facies 4 is the result of an encroaching coastal environment over the continent. Taquaral facies 5 might be the result of a very high energy, body of water, becoming very quieter later, when facies 6 was deposited.Keywords: Stratigraphy, Taphonomy, Paraná Basin, Crustaceans, Vertebrates, Brazil. Resumo Paleontologia e ambientes deposicionais das formações Tatuí e Irati (Permiano) na Fazenda Ponte Nova, Ipeúna, Estado de São Paulo.A Bacia do Paraná, localizada no centro-leste da América do Sul, apresenta espessa sucessão de depósitos neopaleozoicos. Três formações permianas estão presentes no Estado de São Paulo, Brasil: Tatuí (mais antiga) e Irati. Dois membros compõem a Formação Irati -o Taquaral (o mais antigo) e Assistência. Este artigo discute a fácies superior da Formação Tatuí e o Membro Taquaral, seu conteúdo fossilífero, principalmente na Fazenda Ponte Nova. Esta localidade exibe afl oramentos bem preservados de ambas as unidades, com dados informativos sobre as relações de fácies e seus fósseis. Crustáceos e vertebrados são apresentados em ambos os leitos de ambas as unidades, Tatuí e Taquaral. Diferentes fácies foram reconhecidas na Fazenda Ponte Nova, com base em litossomas, fósseis e suas relações. Neste contexto, a complexa arquitetura de seis fácies evidenciadas nesta localidade permitiu a formulação de uma hipótese para a geração paleoambiental da Formação Tatuí. O arenito fi no de estratifi cação cruzada com estratos plano-paralelos subordinados (fácies 1) poderia ter sido depositado em ambiente costeiro de baixo relevo. O subambiente depoiscional da fácies 2 foi de aguas de baixa corrente passando para a fácies 3, um sistema de alta energia. A fácies 4 é o resultado do avanço da linha de costa. A fácies 5, basal do Membro Taquaral, poderia ser o resultado de alta energia gerada por ondas, torn...

show abstract

“…Figura 70 -Características de diversos espinhos de Euselachii (MAISEY,1982). Figura 71 -Fragmento de espinho de Acondylacanthus da Formação Minturn, Neocarbonífero da América do Norte (ITANO et al 2003). 1) Corte transversal; 2) Vista lateral esquerda; 3) Vista inferior.…”

Section: Figura 58 -Conchostráceos Provenientes Do Ponto a Da Fazendaunclassified

“…Amelacanthus, Acondylacanthus e Hybodus (MAISEY,1981(MAISEY, , 1982ITANO et al 2003;ELLIOTT et al 2004). A forma e o tamanho dos tubérculos no espécime aqui estudado, são diferentes dos tubérculos em espinhos atribuídos aos gêneros Ctenacanthus, Glymmatacanthus e Eunemacanthus (MAISEY,1981(MAISEY, , 1982(MAISEY, , 1984.…”

Section: Estratigrafia -unclassified

“…Embora a ornamentação dos espinhos dos gêneros Bythiacanthus e Wodnika sejam semelhante ao observado, são distribuídos diferentemente em Bythiacanthus(ITANO et al 2003) e mais amplamente espaçados em Wodnika(MAISEY,1982).Sphenacanthus sanpauloensis do Eopermiano da base da Formação Irati, o presente exemplar apresenta similaridades e diferenças em relação às espécies supracitadas. Em relação ao número de costelas, difere das três espécies brasileiras por possuir mais de 15 costelas distintas, enquanto as outras possuem, em média, 11 (12 em Sphenacanthus gondwanus).…”

unclassified

See 1 more Smart Citation

Geologia e paleontologia das formações Tatuí e Irati no centro-leste do Estado de São Paulo

Chahud¹

View full text Add to dashboard Cite

show abstract

Ctenacanthus and Other Chondrichthyan Spines and Denticles From the Minturn Formation (Pennsylvanian) of Colorado

Cited by 13 publications

References 14 publications

Carboniferous chondrichthyan assemblages from the Surprise Canyon and Watahomigi formations (latest Mississippian–Early Pennsylvanian) of the western Grand Canyon, Northern Arizona

Carboniferous chondrichthyan assemblages from the Surprise Canyon and Watahomigi formations (latest Mississippian–Early Pennsylvanian) of the western Grand Canyon, Northern Arizona

Paleontology and depositional environments of the Tatuí and Irati formations (Permian) in the Ponte Nova Farm, Ipeúna, state of São Paulo

Geologia e paleontologia das formações Tatuí e Irati no centro-leste do Estado de São Paulo

Contact Info

Product

Resources

About