The late Silurian anaspid genus Rhyncholepis from Oesel, Estonia, and Ringerike, Norway. American Museum novitates ; no. 2699

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dc.contributor.authorRitchie, Alexander.en_US
dc.date.accessioned2005-10-06T18:20:47Z
dc.date.available2005-10-06T18:20:47Z
dc.date.issued1980en_US
dc.description18 p. : ill. ; 26 cm.en_US
dc.descriptionIncludes bibliographical references (p. 17-18).en_US
dc.description.abstract"Re-examination and further preparation of the original material of the Silurian anaspid Saarolepis oeselensis (Robertson) from the Ludlovian Paadla Formation of Oesel, Estonia, has led to the discovery of an almost complete and uncrushed head of this species. In the structure of its cranial and ventral (gular) shields the Oesel form closely resembles the well-known Rhyncholepis parvulus Kiaer from the Upper Silurian of Ringerike, southern Norway, and it must now be assigned to that genus, with the suppression of Saarolepis (Robertson). There are sufficient differences of specific importance between the forms from Norway and from Oesel to justify the retention of Rhyncholepis oeselensis (Robertson) as a separate species, the second of this genus to be recognized. Details are also given of the discovery of well-developed, paired, ventrolateral finfolds in the Norwegian species, R. parvulus Kiaer, reinforcing earlier evidence that the presence of such fins is the rule rather than the exception in anaspids"--P. [1].en_US
dc.format.extent9907845 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/5441
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York, N.Y. : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates ; no. 2699en_US
dc.subject.lccQL1 .A436 no.2699, 1980en_US
dc.subject.lcshRhyncholepis.en_US
dc.subject.lcshAnaspida.en_US
dc.subject.lcshFishes, Fossil -- Estonia -- Saaremaa Island.en_US
dc.subject.lcshFishes, Fossil -- Norway -- Ringerike.en_US
dc.subject.lcshPaleontology -- Silurian -- Estonia -- Saaremaa Island.en_US
dc.subject.lcshPaleontology -- Silurian -- Norway -- Ringerike.en_US
dc.subject.lcshPaleontology -- Estonia -- Saaremaa Island.en_US
dc.subject.lcshPaleontology -- Norway -- Ringerike.en_US
dc.titleThe late Silurian anaspid genus Rhyncholepis from Oesel, Estonia, and Ringerike, Norway. American Museum novitates ; no. 2699en_US
dc.typetexten_US

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