Definition of Ptychopariid. Meaning of Ptychopariid. Synonyms of Ptychopariid

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Definition of Ptychopariid

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Meaning of Ptychopariid from wikipedia

- present. (The librigena, or ch**** spines, detach during moulting.) In ptychopariids, short bladelike genal spines are often present on the tips of the librigena...
- ptychopariid (specific name may be confused with Alokistocare) Alokistocare harrisi - alokistocarid ptychopariid Asaphiscus wheeleri - ptychopariid;...
- Olenus is a genus of Upper Cambrian ptychopariid trilobite. Olenus can be found in the British Isles, India, Norway, Sweden, Denmark, Newfoundland, Texas...
- Quitacetra arenata is a species of ptychopariid trilobite arthropod from Late Cambrian-aged deposits in Quita Cr****, Queensland. Sepkoski, Jack (2002)...
- Olenidae is a family of ptychopariid trilobites. Some genera, Balnibarbi and Cloacaspis, are thought to have evolved a symbiotic relationship with sulfur-eating...
- Bergeroniellus B. spinosus Redlichiid trilobite Binodaspis B. secunda Ptychopariid trilobite Sinskolutella S. ordinata Bradoriid Yakutingella Y. intricata...
- Eoproetus is an extinct genus of ptychopariid trilobite in the family Ptychopariidae. It lived what is now China during the Cambrian Period, which lasted...
- earliest trilobites known from the fossil record are redlichiids and ptychopariid bigotinids dated to around 520 million years ago. Contenders for the...
- Sailycaspis is an extinct genus of ptychopariid trilobites of the family Ellipsocephaloidea . It lived during the early part of the Botomian stage, which...
- Holotrachelidae and Hystricuridae (considered Proetida before), combined with the Ptychopariid families Alokistocaridae, Crepicephalidae, Ehmaniellidae, Marjumiidae...