Sphenacodon

Who makes it? This is a classic figure from Marx! When did it come out? I'm not really sure when this particular one came out, but it was produced from about 1955 to the 1970s. A classic monochrome plastic figure! Still available? Not the original figures, but I think it sometimes gets recast (officially or unofficially) for other later sets. Where can it be found in my displays? On a shelf filled with all kinds of non-dinosaur reptiles. It's among…