Characters.

[John Grehan]

> Nothing is missing; a 0 represents the plesiomorphic state (thin
enamel)
> and
> a 1 represents the apomorphic state (thick enamel).

However you feel comfortable phrasing it.

John Grehan
> 
> Dick
> 
> 
> --
> Richard J. Jensen              | tel: 574-284-4674
> Department of Biology      | fax: 574-284-4716
> Saint Mary's College         | e-mail: rjensen at saintmarys.edu
> Notre Dame, IN 46556    | http://www.saintmarys.edu/~rjensen