Toxopneustidae is a family of globular sea urchins in the class Echinoidea.
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FAMILY
via GBIF
Toxopneustidae is a family of globular sea urchins in the class Echinoidea.
==Characteristics== All Camarodonts have imperforate tubercles and compound ambulacral plates. In addition, the Toxopneustids are characterised by the peristome, or opening through the test, having a sharp margin with the buccal notches being prominent. The tubercles lack the crenulations or ring of cog-like structures that articulate with the spines in certain other families. The Aristotle's lantern, or jaw apparatus, has the keeled teeth and the epiphyses united above the foramen magnum, the V-shaped gap between the hemipyramids that support the lantern's tooth.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).