<i>Palaeoscolex piscatorum</i>
            gen. et sp. nov., a worm from the Tremadocian of Shropshire

Whittard, W. F.

doi:10.1144/gsl.jgs.1953.109.01-04.07

Cited by 72 publications

(54 citation statements)

References 10 publications

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“…A worm known in detail from the British Tremadoc is Palaeoscolex piscatorum described by Whittard (1953), who recorded this species from the Shumardia pusilla Zone of Sheinton, Shropshire, and from the Dictyonema flabelliforme Zone of Breadstone, Gloucestershire. All Whittard's type material is longer than our specimen, and, probably more significantly, considerably wider (widths varying from 1.0 to 1.4 mm).…”

Section: Remarksmentioning

confidence: 99%

Tremadoc faunas from the Carmarthen district, South Wales

et al. 1982

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A diverse fauna of trilobites, graptolites, inarticulate brachiopods, sponges, and a worm is described from the Tremadoc rocks cropping out in the Llangynog district, SW of Carmarthen. It permits identification of the Clonograptus tenellus Zone and older Tremadoc strata; younger Tremadoc strata are apparently absent. The fauna shows closest affinities with the Shineton Shales of Shropshire, while some of the trilobites also indicate a close relationship with those from the Tremadoc of NW Argentina.

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Section: Remarksmentioning

confidence: 99%

Tremadoc faunas from the Carmarthen district, South Wales

et al. 1982

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“…Species with this morphological form are often assigned to the "palaeoscolecids" [20]. Palaeoscolex was originally considered to be an annelid [21]; later Hou et al [4,5,7] recognized the similarities between these three genera and put them into the phylum Nematomorpha based on their elongated body shape; however, due to further research on the proboscis of these animals in recent years, these three genera are now suggested to be closer to priapulids [22,23]. The latest cladistic analysis [24] shows Palaeoscolex to be positioned among the stem priapulids and is grouped with the similarly shaped Tabelliscolex, Cricocosmia, and Tylotites.…”

Section: Chengjiang Priapulidsmentioning

confidence: 99%

Phylogeny and evolutionary significance of vermiform animals from the Early Cambrian Chengjiang Lagerstätte

Hou

Baines

2010

Sci. China Earth Sci.

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The Early Cambrian Chengjiang Biota of China has preserved many species of vermiform animals in exquisite detail, which provide a unique window into the origin and early evolution of different vermiform phyla. This article reviews and discusses the forty-five Chengjiang vermiform animals discovered so far, and specifically comments on the phylogeny, modes of life, evolutionary significance as well as existing debates concerning the Chengjiang priapulid and lobopodian phyla. This article analyzes existing problems with Chengjiang vermiform morphological research and highlights various factors that affect the final preserved fossil morphology, including taphonomy and shape change caused by vermiform movement, as well as proposing that Anningvermis multispinosa and Corynetis brevis are synonymous. Chengjiang vermiform animals displayed a great diversity of morphologies and ecological roles, which is significant for understanding the origin and evolution of early metazoans; the potential for future research is enormous but needs to be broadened by interdisciplinary work involving taphonomy, geochemistry, cladistics, and genetics. Chengjiang Biota, vermiform animals, priapulid, lobopodian, taphonomy Citation:Ma X Y, Hou X G, Baines D. Phylogeny and evolutionary significance of vermiform animals from the Early Cambrian Chengjiang Lagerstätte. Sci

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“…Their first descriptions were based on compressed body fossils (e.g., Conway Robison, 1986, Robison, 1969;Ulrich, 1878;Whittard, 1953). Their disarticulated sclerites were found worldwide as dregs after limestone etching with problems to assign them to specific taxa and were described under different generic names, such as Hadimopanella Gedik, 1977, Kaimenella Märss, 1988and Milaculum Müller, 1973(e.g., Bendix-Almgreen and Peel, 1988Bengtson, 1977;Gedik, 1977Gedik, , 1989Märss, 1988;Peel and Larsen, 1984;van den Boogard, 1983van den Boogard, , 1988van den Boogard, , 1989avan den Boogard, , 1989bWrona, 1982Wrona, , 1987.…”

Section: Introductionmentioning

confidence: 99%

Hadimopanella oezgueli Gedik, 1977: a palaeoscolecidan sclerite useless for taxonomic purposes

Barragán

Esteve

García‐Bellido

et al. 2014

Palaeontologia Electronica

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A new assemblage of Hadimopanella oezgueli Gedik, 1977 is described from the middle Caesaraugustan (middle Cambrian) part of the Genestosa Member (Oville Formation) in the Cantabrian Mountains, northern Spain. Sclerites occur disarticulated and display distinct diagenetic processes, with authigenic chlorites occluding primary porosity and secondary fissures. Sclerite distribution was controlled by patchy development of epibenthic multispecies clumps on shell (both carbonate and clayey) substrates. A joint biometric and statistical analysis in both dorsal and lateral views of disarticulated sclerites allows characterization of two distinct morphotypes. These are compared with other occurrences of H. oezgueli sclerites from other margins of Gondwana and the Siberian Platform, as a result of which, another morphotype is identified. Two main inferences can be drawn: (i) different ventral trunk-sided sclerites of a same scleritome comprise different sclerite morphotypes and (ii) one distinct sclerite morphotype occurs in different genera and species. These results emphasize the idea that the diagnostic features that characterize the parataxon H. oezgueli should not be used for (bio) taxonomic classification of palaeoscolecidan scleritomes. Tania Barragán. Centro de Astrobiología (CSIC/INTA), Ctra. de Torrejón a Ajalvir km 4,

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Palaeoscolex piscatorum gen. et sp. nov., a worm from the Tremadocian of Shropshire

Abstract: Summary The unique preservation among fossil annelids of a worm from the Tremadocian has retained the form of the gut, the jaw apparatus and the minute detail of the surface of the skin. The new genus cannot confidently be placed in any known division of the annelids.

Cited by 72 publications

References 10 publications

Tremadoc faunas from the Carmarthen district, South Wales

Tremadoc faunas from the Carmarthen district, South Wales

Phylogeny and evolutionary significance of vermiform animals from the Early Cambrian Chengjiang Lagerstätte

Hadimopanella oezgueli Gedik, 1977: a palaeoscolecidan sclerite useless for taxonomic purposes

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