perekond
Monocraterion Torell, 1870
Taksoni kirjeldused
Schlirf & Uchman, 2005
DIAGNOSIS. Funnel-shaped negative epirelief with a raised knob on the floor of the funnel; this knob is continuous with a short, vertical, centrally located tubular structure. Essentially with numerous small, horizontal, slightly curving, rarely branching, occasionally lined, tubular, full-relief structures with smooth outer surface going out from the raised knob.
Valik taksonit käsitlevast teaduskirjandusest
Knaust, D. 2004. Cambro-Ordovician trace fossils from the SW-Norwegian Caledonides. Geological Journal 39, 1, 1-24. DOI:10.1002/gj.941
Jensen, S. 1991. The Lower Cambrian problematicum Spatangopsis costata Torell, 1870. GFF 113, 1, 86-87. DOI:10.1080/11035899109453833
Leitud liigid
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Klassifikatsioon