About: Tricrepicephalus

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Tricrepicephalus is an extinct genus of ptychopariid trilobites of the family with species of average size. Its species lived from 501 to 490 million years ago during the Dresbachian faunal stage of the late Cambrian Period. Fossils of Tricrepicephalus are widespread in Late Cambrian deposits in North America, but is also known from one location in South-America. Tricrepicephalus has an inverted egg-shaped exoskeleton, with three characteristic pits in the fold that parallels the margin of the headshield just in front of the central raised area. The articulating middle part of the body has 12 segments and the tailshield carries two long, tubular, curved pygidial spines that are reminiscent of earwig's pincers that rise backwards from the plain of the body at approximately 30°.

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  • Tricrepicephalus is an extinct genus of ptychopariid trilobites of the family with species of average size. Its species lived from 501 to 490 million years ago during the Dresbachian faunal stage of the late Cambrian Period. Fossils of Tricrepicephalus are widespread in Late Cambrian deposits in North America, but is also known from one location in South-America. Tricrepicephalus has an inverted egg-shaped exoskeleton, with three characteristic pits in the fold that parallels the margin of the headshield just in front of the central raised area. The articulating middle part of the body has 12 segments and the tailshield carries two long, tubular, curved pygidial spines that are reminiscent of earwig's pincers that rise backwards from the plain of the body at approximately 30°. (en)
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  • Paracrepicephalus
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  • 44718937 (xsd:integer)
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  • 8804 (xsd:nonNegativeInteger)
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  • 1104056021 (xsd:integer)
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dbp:genus
  • Tricrepicephalus (en)
dbp:genusAuthority
  • Kobayashi, 1935 (en)
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  • Tricrepicephalus texanus, 19mm (en)
dbp:name
  • Tricrepicephalus (en)
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dbp:phylum
  • Arthropoda (en)
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  • Animalia (en)
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dbp:synonyms
  • Paracrepicephalus (en)
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  • Tricrepicephalus is an extinct genus of ptychopariid trilobites of the family with species of average size. Its species lived from 501 to 490 million years ago during the Dresbachian faunal stage of the late Cambrian Period. Fossils of Tricrepicephalus are widespread in Late Cambrian deposits in North America, but is also known from one location in South-America. Tricrepicephalus has an inverted egg-shaped exoskeleton, with three characteristic pits in the fold that parallels the margin of the headshield just in front of the central raised area. The articulating middle part of the body has 12 segments and the tailshield carries two long, tubular, curved pygidial spines that are reminiscent of earwig's pincers that rise backwards from the plain of the body at approximately 30°. (en)
rdfs:label
  • Tricrepicephalus (en)
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foaf:isPrimaryTopicOf
foaf:name
  • Tricrepicephalus (en)
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