Re: New name for Megalosaurus hesperis

[David Marjanovic <david.marjanovic@gmx.at>]

> The echinoderm 'classes' (e.g., Asteroidea, which you mentioned) are 
> entrenched clades with long taxonomic histories, and are therefore 
> exceptional.

Not at all. There are genera like *Emydoidea* and *Caimanoidea* (with the 
feminine counterpart to the masculine -oides). There are cases like 
Superfamily Ursoidea, derived from Ursidae and *Ursus*, being contained 
within Infraorder Arctoidea, derived from no family name whatsoever. Same 
for Hominoidea and Anthropoidea (the latter including all monkeys). And 
that's just off the top of my head.