Back to search
Signor & McMenamin, 1988

The Early Cambrian worm tube Onuphionella from California and Nevada

Signor, P. W., McMenamin, M. A. S.
DOI
DOI10.1017/S0022336000029863
Year1988
JournalJournal of Paleontology
Volume62
Number2
Pages233-240
Typearticle in journal
Figures4
LanguageEnglish
Id1496

Abstract

Two new species of worm tubes referable to the genus Onuphionella occur in Lower Cambrian strata in eastern California and western Nevada. Onuphionella durhami n.sp. is found in the Campito Formation (in pre-trilobite strata, in the Fallotaspis and, possibly, the Nevadella Zones) and O. claytonensis n.sp. occurs in the Middle Member of the Poleta Formation (Nevadella Zone). The unusual tubes are armored with an imbricated coat of mica flakes, reminiscent of the modern genus Owenia. The lowest occurrence of Onuphionella in western North America corresponds closely with the lowest occurrence of the genus in the Baltic region, indicating that correlations between the two regions are not greatly in error. 

Remarks

2 joonist + 2 fototahvlit
Last change: 30.12.2019
KIKNATARCSARVTÜ Loodusmuuseumi geokogudEesti Loodusmuuseumi geoloogia osakond
All materials in the portal are for free usage according to CC BY-SA , unless indiated otherwise.
Portal is part of natianal research infrastructure and geoscience data platform SARV, hosted by TalTech.
Open Book icon by Icons8.