As zoological knowledge developed, it became clear that taillessness occurred in a number of different and otherwise distantly related species.
en.wikipedia.org They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopodes, and cuttlefish, and more distantly to the nautiloids.
en.wikipedia.org Today, though most palaeobotanists regard them as being only distantly related to ferns and these names as misleading, but the names have nevertheless stuck.
en.wikipedia.org Thus, the parallels between these distantly related species is remarkable.
en.wikipedia.org This word is a play on the many morphisms in mathematics, but cryptomorphism is only very distantly related to isomorphism, homomorphism, or morphisms.
en.wikipedia.org