"excellent specimen" is a valid phrase that can be used in written English.
Example: The research team collected an excellent specimen of a rare plant species.
If nothing else, there's a cracking tyrannosaur in there and some gorgeous photographs of this excellent specimen, especially of the skull which came out a treat.
I dropped a jar over it and captured an excellent specimen of a male black widow, dainty and thinner than its sisters.
Ten minutes later, I was talking to Walsh with the excitement a reporter feels when getting to know an excellent specimen of the tribe.
Finding an excellent specimen of the Cuban sandwich — roast pork, ham and Swiss cheese with pickles on a roll, panini-pressed into gooey, crispy deliciousness — should, I figured, be easy.
Notman himself accurately described it as an "excellent specimen of the Italian style of architecture," whose "beautiful proportions" along with its "fine details and massive crowning cornice, give it an air of stateliness and grandeur".
Fiddler last surfaced, along with his brother Thomas ("Bubz"), in the funk group Mr. Fiddler back in 1989; their record was an excellent specimen of soulful if derivative P-Funk that sank without a trace.
Some excellent specimens were recovered.
It's a parade of excellent specimens.
Some of the best films are just excellent specimens of familiar types.
A large area of the original rainforest on which the garden was founded has been preserved in its natural state, providing excellent specimens for scientific study.
Unlike chloroplasts and land plants, cyanobacteria can be readily modified genetically and the narrow diameter of the elongatus strains make them excellent specimens for electron cryo-tomography.
