Skip to main content Accessibility help
×
Home
Hostname: page-component-cf9d5c678-xvx2z Total loading time: 0.388 Render date: 2021-08-05T21:43:49.166Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Manitouscolex, a new palaeoscolecidan genus from the Lower Ordovician of Colorado

Published online by Cambridge University Press:  14 July 2015

Oliver Lehnert
Affiliation:
Paleontologie–Sciences de la Terre, UMR 8014 CNRS, USTL, Cite Scientifique SN5, F-59655 Villeneuve d'Ascq Cedex, France,
Petr Kraft
Affiliation:
Charles University Prague, Institute of Geology and Palaeontology, Albertov 6, 128 43, Prague 2, Czech Republic,
Corresponding

Extract

Palaeoscolecidans represent an extinct class of vermiform organisms with a prominent annulation ranging from the Lower Cambrian to the Upper Silurian. Since the first descriptions in the 1950s, they have been attributed to different groups, but recently they have been linked to the priapulids (Conway Morris, 1997). Palaeoscolecids are mainly considered to represent members of Ecdysozoa. Their position within this clade is still under discussion, but cladistic analyses indicate that they are either close relatives of nematomorphs (Hou and Bergström, 1994) or part of an extinct sister clade to the priapulids (Wills, 1998; Dong et al., 2004). The outer cuticle of palaeoscolecidan segments possesses microelements mineralized by calcium phosphate, which are often found isolated in the conodont collections obtained from carbonates after acid treatment. Kraft and Mergl (1989), van den Boogaard (1989b), Hinz et al. (1990), and Müller and Hinz-Schallreuter (1993) clearly showed the evidence that these isolated sclerites originate from certain palaeoscolecidan taxa. The specimens documented in this paper represent such fragmented material from the Manitou Formation of west-central Colorado. Extensive taxonomic and morphologic reviews of the palaeoscolecidans were provided by Müller and Hinz-Schallreuter (1993), Conway Morris (1997), Wrona and Hamdi (2001), and Ivantsov and Wrona (2004).

Type
Paleontological Notes
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Barnes, C. R., and Tuke, M. F. 1970. Conodonts from the St. George Formation (Ordovician), northern Newfoundland. Geological Survey of Canada Bulletin, 187:7997.Google Scholar
Bischoff, G. 1986. Early and Middle Silurian conodonts from midwestern New South Wales. Courier Forschungsinstitut Senckenberg, 89:1337.Google Scholar
Branson, E. B., and Mehl, M. G. 1933. Conodont studies. Missouri University Studies, 8:1349.Google Scholar
Branson, E. B., and Mehl, M. G. 1941. New and little known Carboniferous conodont genera. Journal of Paleontology, 15:97106.Google Scholar
Burnett, R. 1988. Polygonal ornament in the conodont Siphonodella: an internal record. Lethaia, 21:411415.CrossRefGoogle Scholar
Conway Morris, S. 1997. The cuticular structure of the 495-Myr-old type species of the fossil worm Palaeoscolex, P. piscatorum (?Priapulida). Zoological Journal of the Linnean Society, 119:6982.CrossRefGoogle Scholar
Conway Morris, S., and Harper, E. 1988. Genome size in Conodonts (Chordata): inferred variations during 270 million years. Science, 241:12301232.CrossRefGoogle Scholar
Conway Morris, S., and Robison, R. A. 1986. Middle Cambrian Priapulids and other soft-bodied fossils from Utha and Spain. University of Kansas Paleontological Contributions, 117:122.Google Scholar
Curry, G. B., and Williams, A. 1983. Epithelial moulds on the shells of the early Palaeozoic brachiopod Lingulella . Lethaia, 16:111118.CrossRefGoogle Scholar
Delage, Y., and Hérouard, E. 1897. Les Vermidiens. Traités de Zoologie Concréte, 5:1372.Google Scholar
Dong, X. P., Donoghue, C. J., Cheng, H., and Liu, J.-B. 2004. Fossil embryos from the Middle and Late Cambrian period of Hunan, south China. Nature, 427:237240.CrossRefGoogle Scholar
Ethington, R. L., and Clark, D. L. 1964. Conodonts from the El Paso Formation (Ordovician) of Texas and Arizona. Journal of Paleontology, 38:685704.Google Scholar
Ethington, R., and Clark, D. L. 1981. Lower and Middle Ordovician conodonts from the Ibex Area western Millard County, Utah. Brigham Young University Geological Studies, 28, 2:1155.Google Scholar
Fahraeus, L. E., and Nowlan, G. S. 1978. Franconian (Late Cambrian) to Early Champlainian (Middle Ordovician) conodonts from the Cow Head Group, western Newfoundland. Journal of Paleontology, 52:444471.Google Scholar
Gedik, I. 1977. Conodont stratigraphy in the Middle Taurus. Bulletin of the Geological Society of Turkey, 20:3548.Google Scholar
Hamar, G. 1966. The Middle Ordovician of the Oslo Region, Norway. 22. Preliminary report on conodonts from the Oslo-Asker and Ringerike districts. Norsk Geologisk Tidsskrift, 46:2783.Google Scholar
Harvey, T. H. P. 2004. The cuticle structure and phylogenetic affinities of palaeoscolecids. Unpublished , , 70 p.Google Scholar
Hass, W. H. 1941. The morphology of conodonts. Journal of Paleontology, 15:7181.Google Scholar
Hinz, I., Kraft, P., Mergl, M., and Müller, K. J. 1990. The problematic Hadimopanella, Kaimenella, Milaculum and Utahphospha identified as sclerites of Palaeoscolecida. Lethaia, 23:217221.CrossRefGoogle Scholar
Hou, X. G., and Bergström, J. 1994. Palaeoscolecid worms may be nematomorphs rather than annelids. Lethaia, 27:1117.Google Scholar
Ivantsov, A. Yu., and Wrona, R. 2004. Articulated palaeoscolecid sclerite arrays from the Lower Cambrian of eastern Siberia. Acta Geologica Polonica, 54(1):122.Google Scholar
Kraft, P., and Lehnert, O. 2004. Palaeoscolecidans and chaetognaths, p. 228230. In Webby, B. D., Droser, M. L., Paris, F., and Percival, I. G. (eds.), Ordovician Biodynamics: Global Patterns of Rising Biodiversity. Columbia University Press, Columbia, New York.Google Scholar
Kraft, P., and Mergl, M. 1989. Worm-like fossils (Palaeoscolecida;? Chaetognatha) from the Lower Ordovician of Bohemia. Sborník geologických věd, Paleontologie, 30:936.Google Scholar
Lamont, A., and Lindström, M. 1957. Arenigian and Llandeilian Cherts identified in the Southern Uplands of Scotland by means of conodonts, etc. Transactions of the Edinburgh Geological Society, 17:6070.CrossRefGoogle Scholar
Lehnert, O., 1995. Ordovizische Conodonten aus der Präkordillere Westargentiniens: Ihre Bedeutung für Stratigraphie und Paläogeograhie. Erlanger Geologische Abhandlungen, 125, 193 p.Google Scholar
Lindström, M. 1955. Conodonts from the lowermost Ordovician strata of south-central Sweden. Geologiska Föreningens i Stockholm Förhandlingar, 76:517604.CrossRefGoogle Scholar
Lindström, M., and Ziegler, W. 1981. Surface micro-ornamentation and observations on internal composition, p. W41W52. In Robison, R. A. (ed.), Treatise on Invertebrate Paleontology, Pt. W, Miscellanea (supplement 2, Conodonta). Geological Society of America and University of Kansas, Lawrence.Google Scholar
Löfgren, A. 1978. Arenigian and Llanvirnian conodonts from Jämtland, northern Sweden. Fossils and Strata, 13:1129.Google Scholar
McCracken, A. D., and Nowlan, G. S. 1989. Conodont paleontology and biostratigraphy of Ordovician carbonates and petroliferous carbonates on Southampton, Baffin, and Akpatok islands in the eastern Canadian Arctic. Canadian Journal of Earth Sciences, 26:18801903.CrossRefGoogle Scholar
Müller, K. J. 1973. Milaculum n. g., ein phosphatischen Mikrofossil aus dem Altpaläozoikum. Paläontologische Zeitschrift, 47:217228.CrossRefGoogle Scholar
Müller, K. J., and Hinz-Schallreuter, I. 1993. Palaeoscolecid worms from the Middle Cambrian of Australia. Palaeontology, 36:549592.Google Scholar
Myrow, P. M., Taylor, J. F., Miller, J. F., Ethington, R. L., Ripperdan, R. L., and Allen, J. 2003. Fallen arches: dispelling myths concerning Cambrian and Ordovician paleogeography of the Rocky Mountain region. Geological Society of America Bulletin, 115:695713.2.0.CO;2>CrossRefGoogle Scholar
Pander, C. H. 1856. Monographie der fossilen Fische des silurischen Systems der russisch-baltischen Gouvernements. Buchdruckerei der kaiserlichen Akademie der Wissenschaften, St. Petersburg, 91 p.Google Scholar
Pierce, R. W., and Langenheim, R. L. 1970. Surface patterns on selected Mississippian conodonts. Geological Society of America Bulletin, 81:32253236.CrossRefGoogle Scholar
Repetski, J. E. 1981. An Ordovician occurrence of Utahphospha Müller & Miller. Journal of Paleontology, 55:395400.Google Scholar
Repetski, J. E. 1982. Conodonts from El Paso Group (Lower Ordovician) of westernmost Texas and southern New Mexico. New Mexico Bureau of Mines and Mineral Resources Memoir, 40, 121 p.Google Scholar
Salter, J. W. 1866. On the fossils of North Wales. Geological Survey of Great Britain, memoir III, appendix, p. 239381.Google Scholar
Sergeeva, S. P. 1963. Conodonts from the Lower Ordovician of the Leningrad Region. Academiya Nauk. SSSR. Paleontologicheskii Zhurnal, 1963, 2:93108.Google Scholar
Stauffer, C. R., 1935. Conodonts of the Glenwood beds. Geological Society of America Bulletin, 46:125168.CrossRefGoogle Scholar
van den Boogaard, M. 1989a. A problematic microfossil, Hadimopanella? coronata sp. nov., from the Ordovician of Estonia. Proceedings of the Koninklijke Nederlandse Akadademie van Wetenschappen, B92:179190.Google Scholar
van den Boogaard, M. 1989b. Isolated tubercles of some Palaeoscolecida. Scripta Geologica, 90:112.Google Scholar
von Bitter, P. H., and Norby, R. D. 1994. Fossil epithelial cell imprints as indicators of conodont biology. Lethaia, 27:193198.CrossRefGoogle Scholar
Walliser, O. H. 1964. Conodonten des Silurs. Abhandlungen des Hessischen Landesamtes für Bodenforschung, 41:1106.Google Scholar
Webby, B. D., Cooper, R. A., Bergström, S. M., and Paris, F. 2004. Stratigraphic framework and time slices, p. 4147. In Webby, B. D., Droser, M. L., Paris, F., and Percival, I. G. (eds.), Ordovician Biodynamics: Global Patterns of Rising Biodiversity. Columbia University Press, Columbia, New York.Google Scholar
Whittard, W. F. 1953. Palaeoscolex piscatorum gen. et sp. nov., a worm from the Tremadocian of Shropshire. Quarterly Journal of the Geological Society of London, 109:125135.CrossRefGoogle Scholar
Wills, M. A. 1998. Cambrian and recent disparity: the picture from priapulids. Paleobiology, 24:177199.Google Scholar
Witzke, B. J. 1990. Palaeoclimatic constraints for Palaeozoic palaeolatitudes of Laurentia and Euramerica, p. 5773. In McKerrow, W. S. and Scotese, C. R. (eds.), Palaeozoic Palaeogeography and Biogeography. Geological Society Memoir, 12.Google Scholar
Wrona, R. 2004. Cambrian microfossils from glacial erratics of King George Island, Antarctica. Acta Palaeontologica Polonica, 49:1356.Google Scholar
Wrona, R., and Hamdi, B. 2001. Palaeoscolecid sclerites from the Upper Cambrian Mila Formation of the Shahmirzad section, Alborz Mountains, northern Iran. Acta Geologica Polonica, 51:101107.Google Scholar
8
Cited by

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Manitouscolex, a new palaeoscolecidan genus from the Lower Ordovician of Colorado
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Manitouscolex, a new palaeoscolecidan genus from the Lower Ordovician of Colorado
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Manitouscolex, a new palaeoscolecidan genus from the Lower Ordovician of Colorado
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *