Apatopygidae is a family of echinoderms belonging to the order Cassiduloida.
heart urchins
FAMILY
via GBIF
Apatopygidae is a family of echinoderms belonging to the order Cassiduloida.
Genera: Apatopygus Hawkins, 1920 Jolyclypus Lambert, 1918 Nucleopygus L.Agassiz, 1840 Porterpygus Baker, 1983
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).