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Extinct genus of arthropod
Stigmadiscus Rasetti, 1966, is a genus of Lower Cambrian Eodiscinid trilobite belonging to the family Weymouthiidae Kobayashi (1943) Order Agnostida (Salter
Stigmadiscus
1975 Ninadiscus 1980 Egyngolskaya Suite Oodiscus 1966 Semadiscus 1978 Stigmadiscus 1966 Parapagetia 1964 Tannudiscus 1959 Purley Shale Formation Chelediscus
List_of_Cambrian_arthropods
Extinct genus of trilobites
Acidiscus, Bolboparia and Stigmadiscus Acidiscus is most closely related to Bolboparia and slightly more distantly to Stigmadiscus. Synapomorphies for Acidiscus-Bolboparia
Acidiscus
Extinct family of arthropods
†Paracalodiscus †Pseudocobboldia †Runcinodiscus †Semadiscus †Serrodiscus †Stigmadiscus †Tannudiscus †Toledodiscus †Weymouthia Synonyms † Ladadiscinae Soloviev
Weymouthiidae
is most closely related to Acidiscus and slightly more distantly to Stigmadiscus. Like all Agnostida, Bolboparia is diminutive and the headshield (or
Bolboparia
Stephenaspis Sternbergaspis Sthenarocalymene Stigmacephaloides Stigmacephalus Stigmadiscus Stigmametopus Stigmaspis Stigmatoa Stiktocybele Stoecklinia Stoloharpes
List_of_trilobite_genera
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