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Ecdysichnia : a new ethological category for trace fossils produced by moulting

Vallon L. H., Schweigert G., Bromley R. G., Röper M., Ebert M.

Annales Societatis Geologorum Poloniae

2015

Vol. 85, No. 3

433--444

The shedding of exoskeletons is an important aspect of the lifecycle of some in vertebrates (mainly arthropods). To rid them selves of the old cuticula (= exuvia), these animals of ten have to thrash about, twist around or rub themselves against the sediment or other more or less solid objects. In softgrounds, this behaviour may create distinctive patterns that have to be regarded as trace fossils. Accordingly, some ichnospecies of Rusophycus have recently been interpreted as traces made during ecdysis. Most of the so-called “Schwoimarken” from the Solnhofen lithographic limestones (Upper Jurassic, SE Germany), usually interpreted as structures made by dead organisms swaying in response to water movements, must be understood as traces of arthropod ecdysis. In this context, we erect Harpichnus bartheli igen. et isp. nov. and propose the new ethological category, ecdysichnia, for moulting traces. In most “Schwoimarken” containing body-fossil remains other than arthropods, we see sediment displacement by scavenging arthropods rather than mortichnia (sensu Seilacher, 2007). We further propose inclusion of the recently erected category pupichnia for pupation chambers as a subcategory of ecdysichnia. In our opinion, pupation is a special form of moulting that does not justify the splitting of categories, as briefly noted by Vallon et al. (2013).

Przełomowe techniki wykrywania biomarkerów białkowych

Meyer M., Ketterlinus R., Deiniger S.- O., Ebert M., Roecken C.

Laboratorium - Przegląd Ogólnopolski

2006

nr 8-9

49--50

Obecnie opracowywane są nowe zastosowania spektrometrii mas w proteomice, mające szansę w najbliższej przyszłości na wdrożenie w laboratoriach klinicznych. Pośród nich dwie bardzo obiecujące techniki już wzbudziły zainteresowanie w kręgach zajmujących się badaniami klinicznymi, a mianowicie profilowanie biomarkerów techniką MALDI MS oraz obrazowanie MALDI (MALDI Imaging).

New mass spectrometric (MS) proteomics technologies are currently under investigation which have the potential to reach the clinical laboratory in the near future. Of these two very promising techniques have already gained much interest in the clinical research community, namely biomarker profiling by MALDI MS and MALDI imaging technology.