In the four-layered classification system provided, which layer is the most specific identification for the animal?
Answer
Breed (Pembroke Welsh Corgi or Cardigan Welsh Corgi)
The hierarchical system detailed outlines four primary layers of classification applied to the Corgi. The broadest layers include the Family (Canidae) and the Species (*Canis familiaris*). A functional layer is the Breed Group (Herding Group), based on utility. The most specific and detailed layer, which codifies centuries of regional selective breeding and dictates adherence to written standards like those maintained by the AKC, is the Breed level itself. Therefore, distinguishing between the Pembroke Welsh Corgi and the Cardigan Welsh Corgi represents the final, most specific classification layer recognized by organizations governing breed purity.

Related Questions
What umbrella term encompasses the two separate breeds sharing a common Welsh origin?What morphological feature serves as the quickest identifier separating the Cardigan Welsh Corgi from the Pembroke?Which classification group does the American Kennel Club place the Pembroke Welsh Corgi within?Which recognized breed, sharing Welsh origins, is often considered the older of the two Corgi types?Both the Pembroke and Cardigan Welsh Corgi belong specifically to which domesticated species?What functional classification defines both the Pembroke and Cardigan Welsh Corgi due to their ancestral role?What geographical separation primarily drove the distinct classifications of the Pembroke and Cardigan Corgis?The compact, long-backed build of the Pembroke Welsh Corgi was historically ideal for what specific action while driving livestock?In the four-layered classification system provided, which layer is the most specific identification for the animal?Relative to the Pembroke Welsh Corgi, how is the Cardigan Welsh Corgi's general build described?