Search results
Results From The WOW.Com Content Network
Trinucleus is a genus of trilobites of the order Asaphida.It is in the family Trinucleidae. [1]Fossil specimens are found in the Ordovician rocks of Powys, Wales.. This trilobite was blind and although the exact function of the pits and bars surrounding the cephalon are unknown, anatomical evidence suggests this trilobite sifted organic matter on the seabed.
Spectacularly preserved trilobite fossils, often showing soft body parts (legs, gills, antennae, etc.) have been found in British Columbia, Canada (the Cambrian Burgess Shale and similar localities); New York, U.S.A. (Ordovician Walcott–Rust quarry, near Russia, and Beecher's Trilobite Bed, near Rome); China (Lower Cambrian Maotianshan Shales ...
Ditomopyge is an extinct genus of trilobite belonging to the family Proetidae. [1] It was extant during the Carboniferous and Permian [ 2 ] [ 3 ] and is widely distributed, with fossils found in Europe, [ 4 ] [ 5 ] southwest Asia, [ 6 ] southeast Asia, [ 3 ] Australia, [ 7 ] North America, [ 8 ] [ 9 ] [ 2 ] [ 10 ] and South America.
Corynexochida is an order of trilobite that lived from the Lower Cambrian to the Late Devonian. Like many of the other trilobite orders, Corynexochida contains many species with widespread characteristics. The middle region of the cephalon (the glabella) is typically elongate, with the sides often spreading forward (pestle-shaped).
Selenopeltis (/sɛliːnoʊpɛltɪs/) is an extinct genus of odontopleurid trilobites in the family Odontopleuridae. Species in the genus Selenopeltis can reach a length of 115–160 millimetres (4.5–6.3 in) and a width of 115–130 millimetres (4.5–5.1 in). These trilobites show long pleural spines and were a low-level epifaunal detritivore.
Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in the second half of the Lower Cambrian, and the last species did not survive the Ordovician–Silurian extinction event. Asaphiscus wheeleri, a Cambrian trilobite of the Superfamily Ptychoparioidea
The Artiopoda is a grouping of extinct arthropods that includes trilobites and their close relatives. It was erected by Hou and Bergström in 1997 [5] to encompass a wide diversity of arthropods that would traditionally have been assigned to the Trilobitomorpha. Trilobites, in part due to abundance of findings owing to their mineralized ...
Triarthrus is an average size trilobite (up to about 5 centimetres or 2.0 inches) and its moderately convex body is about twice as long as wide (excluding spines). Like in all Olenidae, the headshield (or cephalon ) of Triarthrus has opisthoparian sutures , and the right and left free cheeks that they define are yoked.