Part of the stem of the fossil lycopod Sigillaria (a lycophyte). The external texture shows the former positions of the leaf bases. Sporangia were borne on the stem surface amongst them. The figured stem fragment is 6 cm in length.
Part of the foliage of the extinct fern Sphenopteris (a pteridophyte). Fronds have distinctive lobed pinnules. The figured section of frond is 6 cm in length.
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This is common knowledge that disaster is everywhere. Its in the streets, its inside your campuses, and it can even be found inside your home. The question is not whether we are safe because no one is really THAT secure anymore but whether we can do something to lessen the odds of ever becoming a victim.