coalball


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coalball

(ˈkəʊlˌbɔːl)
n
(Palaeontology) a nodule of coal containing fossilized plant remains
References in periodicals archive ?
3, 4), it is not possible to associate particular medullosalean-stem impressions with particular foliar species (Wnuk and Pfefferkorn 1984), although many species of Medullosa are already known from coalball petrifactions (Stewart and Delevoryas 1956; Basinger et al.
From pasta to coalballs and from papier mache ornaments to fertilisers macle from all kinds of waste products--these were typical of the novelties that Sir Hugh Plat advocated in the various books that he published between 1593 and his death in 1608.