Note 194

A definite given (and thus as such identied) species of the genus Scytalia would need a complete definition in order to specify it and to distinguish it from other species of the same genus. The higher genus (i.e. the genus above Scytalia) is  ' sponge '.  But because we here were forced [as a result of the assumed incompleteness of the fossil] to limit ourselves to just [identifying it as]  " Scytalia spec.",  that is, not discriminating between distinct species of this genus, an incomplete definition  ( with respect to the species that was actually [but for us unknown] represented by the fossil )  is even inescapable.

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