The oldest stylophoran echinoderm: a new Ceratocystis from the Middle Cambrian of Germany

Rahman, Imran A.; Zamora, Samuel; Geyer, Gerd

doi:10.1007/s12542-009-0039-z

Cited by 15 publications

(19 citation statements)

References 35 publications

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“…3). This represents the oldest recorded Ceratocystis that approximately matches in age a single specimen collected from Germany 40 . This level also contains a ctenocystoid closely similar to that seen in the earlier level (Fig.…”

Section: Resultsmentioning

confidence: 55%

The oldest echinoderm faunas from Gondwana show that echinoderm body plan diversification was rapid

2013

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Section: Resultsmentioning

confidence: 55%

The oldest echinoderm faunas from Gondwana show that echinoderm body plan diversification was rapid

2013

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“…These middle Cambrian (Series 3) echinoderm faunas show clear Gondwanan affinities as was previously noted (Cocks & Fortey, 2009). Armoured stylophorans are endemic to Gondwanan margin assemblages (Lefebvre, 2007;Rahman, Zamora & Geyer, 2010), and cinctans are largely confined to Gondwana, although there are rare occurrences from Siberia (Friedrich, 1993;Rozhnov, 2006;Smith & Zamora, 2009;Zamora & Álvaro, 2010). Ctenocystoids are biogeographically widespread, being present in Laurentia (North America and Canada), Baltica (Poland) and Gondwana (Spain, Bohemia and Australia) (Robison & Sprinkle, 1969;Jell, Burrett & Banks, 1985;Ubaghs, 1987).…”

Section: Palaeobiogeographic Implications Of British Cambrian Echinodmentioning

confidence: 99%

The first Furongian (late Cambrian) echinoderm from the British Isles

Zamora

2012

Geol. Mag.

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Furongian (late Cambrian) echinoderms are extremely rare in the fossil record and only two previous reports have been described from the Paibian Stage worldwide. Here, the third occurrence of an echinoderm from the Paibian, and the first ever reported in the Furongian of Britain is presented. It is a primitive pelmatozoan which shows intermediate characteristics between eocrinoids with columnalbearing stems and primitive glyptocystitid rhombiferans. The palaeobiogeographic affinities of Cambrian echinoderm faunas from Britain, eastern Avalonia, are shown to be with Gondwana.

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“…El estudio de moldes naturales mediante escáner CT ha dado recientemente excelentes resultados (Rahman et al, 2010), lo que abre un importante abanico de posibilidades.…”

Section: Materials Y Técnicas De Estudiounclassified

“…Estilóforos como Ceratocystis, se reconocen tanto en la Zona Cantábrica como en las Cadenas Ibéricas, y el género se distribuye además por otras regiones gondwánicas como Francia, Bohemia y Alemania (Lefebvre, 2007;Rahman et al, 2010). También aparece en Marruecos aunque todavía no ha sido publicado (Geyer com.…”

Section: Implicaciones Paleobiogeográficasunclassified

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Equinodermos del Cámbrico de España: situación actual de las investigaciones y perspectivas futuras

Zamora

2011

Estud. geol.

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RESUMENEn este trabajo se presenta una revisión histórica de todos los equinodermos cámbricos descubiertos en España, desde su primer hallazgo a finales del siglo XIX y las técnicas actuales que se utilizan para su estudio.El muestreo sistemático de nuevas localidades cámbricas del Norte de España y la revisión de otras ya conocidas, ha proporcionado más de 2.000 ejemplares de equinodermos. En total se han reconocido taxones pertenecientes a cinco clases: Cincta, Eocrinoidea, Edrioasteroidea, Stylophora y Ctenocystoidea, que muestran la mayor diversidad para este periodo en Gondwana.Estos hallazgos muestran que los equinodermos alcanzaron su primer pico de diversidad durante el Cámbrico medio. Esto, unido a la amplia distribución paleobiogeográfica de algunos clados, nos advierte de un origen para muchos grupos en el Cámbrico inferior, donde sólo unos pocos taxones han sido descritos a nivel mundial. Por último se dan algunas ideas de hacia dónde se podrían dirigir los esfuerzos en este campo de conocimiento.Palabras clave: equinodermos, Cámbrico, Gondwana, España, revisión, diversidad ABSTRACT This paper reviews all finds of Cambrian echinoderms from Spain since their first discovery in the XIX century. Recent research techniques used for the study of echinoderms are also described, providing a guide for procedure.Sampling in new fossiliferous localities from the Cambrian of North Spain and the review of classic ones has yielded more than 2,000 echinoderm fossils. These include species belonging to five major classes, Cincta, Eocrinoidea, Edrioasteroidea, Stylophora and Ctenocystoidea, which show the highest diversity reported from Gondwana.These results suggest that echinoderms underwent major diversification during the middle Cambrian, with many groups more widely distributed than previously thought. These arguments suggest that many classes originated in the lower Cambrian where only a few taxa have been described. Finally, I offer some suggestions about where research efforts need to be focussed for a better knowledge of Cambrian echinoderm faunas in Gondwana.

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The oldest stylophoran echinoderm: a new Ceratocystis from the Middle Cambrian of Germany

Abstract: A new stylophoran (Ceratocystis prosthiakida sp. nov.) from the early Middle Cambrian of the Franconian Forest (north-east Bavaria,

Cited by 15 publications

References 35 publications

The oldest echinoderm faunas from Gondwana show that echinoderm body plan diversification was rapid

The oldest echinoderm faunas from Gondwana show that echinoderm body plan diversification was rapid

The first Furongian (late Cambrian) echinoderm from the British Isles

Equinodermos del Cámbrico de España: situación actual de las investigaciones y perspectivas futuras

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