- Paradoxides
Taxobox
name = "Paradoxides"
image_width = 240px
image_caption = "Paradoxides davidis "
regnum =Animal ia
phylum =Arthropod a
classis = Trilobita
ordo =Redlichiida
subordo =Redlichiina
familia =Paradoxididae
genus = "Paradoxides"
subdivision_ranks =Species
subdivision = "P. aelandicus"
"P. bidentatus"
"P. bohemicus"
"P. davidis"
"P. forchhammeri"
"P. harlani"
"P. haywardi"
"P. gracilis"
"P. paradoxissimus"
"P. rugulosus"
"P. spinosus""Paradoxides" was a
genus of relatively largetrilobite s found throughout the world during the MidCambrian period (540 million years ago).It was a moderately large trilobite (14 cm.) with a semicircular head, free cheeks each ending with a long, narrow, recurved spine, and relatively large eyes. Its elongated trunk was composed of 20 segments and again was adorned with longish, recurved lateral spines. Its
pygidium (caudal shield) was comparatively small and had one or two pairs of long spines on the posterior margin. "Paradoxides" is a characteristic MiddleCambrian trilobite of the 'Atlantic' (Avalonian) fauna. Avalonian rocks were originally deposited near a small continent in thePaleozoic ageIapetus Ocean . Avalonian beds are found in a narrow strip along the East Coast ofNorth America as well as inEurope .Developmental stages of this genus are also known.
References
Benes, Josef. Prehistoric Animals and Plants. Pg. 54. Prague: Artia, 1979
ee also
*
List of trilobites
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