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  2. Trilobite - Wikipedia

    en.wikipedia.org/wiki/Trilobite

    The trilobite body is divided into three major sections : 1 – cephalon; 2 – thorax; 3 – pygidium. Trilobites are so named for the three longitudinal lobes: 4 – right pleural lobe; 5 – axial lobe; 6 – left pleural lobe; the antennae and legs are not shown in these diagrams.

  3. Category:Trilobites of North America - Wikipedia

    en.wikipedia.org/wiki/Category:Trilobites_of...

    Silurian trilobites of North America (16 P) Pages in category "Trilobites of North America" The following 33 pages are in this category, out of 33 total.

  4. Elrathia - Wikipedia

    en.wikipedia.org/wiki/Elrathia

    Elrathia is a genus of trilobite belonging to Ptychopariacea known from the mid-Cambrian of Laurentia (North America). [2] E. kingii is one of the most common trilobite fossils in the USA [3] locally found in extremely high concentrations within the Wheeler Formation in the U.S. state of Utah. [4] E. kingii has been considered the most ...

  5. Asaphellus - Wikipedia

    en.wikipedia.org/wiki/Asaphellus

    Asaphellus is an extinct genus of trilobites reported from the Ordovician. It is seen in Argentina, Bolivia, Mexico, America, Algeria, Iran, Spain, Portugal, France, Great Britain, Czech Republic, Norway, Sweden and China. [1] [2] [3]

  6. Dalmanites - Wikipedia

    en.wikipedia.org/wiki/Dalmanites

    Dalmanites is genus of trilobites with an average (about 8 centimetres or 3.1 inches long), moderately vaulted exoskeleton with an inverted egg-shaped outline (about 1.5× longer than wide). Its headshield (or cephalon ) is semicircular, with robust (genal) spines extending from the side of the cephalon back to approximately the 8th thorax segment.

  7. Trimerus - Wikipedia

    en.wikipedia.org/wiki/Trimerus

    Trimerus is an extinct genus of trilobite in the family Homalonotidae. Trimerus is one of North America's largest trilobites, reaching over 20 cm (7.9 in) in length. It had a thorax composed of 13 segments with weak trilobation, a large subtriangular head terminating in an expanded rostral plate, a two-pronged hypostome , and a triangular ...

  8. Eldredgeops rana - Wikipedia

    en.wikipedia.org/wiki/Eldredgeops_rana

    Eldredgeops rana (formerly Phacops rana) is a species of trilobite from the middle Devonian period. Their fossils are found chiefly in the northeastern United States , and southwestern Ontario . Because of its abundance and popularity with collectors, Eldredgeops rana was designated the Pennsylvania state fossil by the state's General Assembly ...

  9. Aegrotocatellus - Wikipedia

    en.wikipedia.org/wiki/Aegrotocatellus

    Aegrotocatellus is a genus of trilobite in the order Phacopida, which existed in what is now Nunavut, Canada. It was named by Adrain and Edgecombe in 1995, and the type species is Aegrotocatellus jaggeri , [ 1 ] a species named after British musician Mick Jagger .