Historical Examples

• The frontoparietals are equally poorly ossified, and the frontoparietal fontanelle is extensive.

  Middle American Frogs of the Hyla microcephala Group

  William E. Duellman

• The frontoparietal is elongate, without a pronounced anterior supraorbital process.

  The Systematics of the Frogs of the Hyla Rubra Group in Middle America

  Juan R. Len

• The frontoparietal is elongate, smooth, and bears a small supraorbital process on the anterior edge of the orbit.

  The Systematics of the Frogs of the Hyla Rubra Group in Middle America

  Juan R. Len

• The frontoparientals are sutured medially throughout their lengths; the frontoparietal fontanelle is absent.

  The Systematics of the Frogs of the Hyla Rubra Group in Middle America

  Juan R. Len

• The frontoparietal fontanelle is narrow anteriorly and wide posteriorly.

  The Systematics of the Frogs of the Hyla Rubra Group in Middle America

  Juan R. Len