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- The Paradoxididae are a family of trilobites, a group of extinct marine arthropods. They occurred during the late Lower Cambrian (Toyonian) and disappeared at the end of the Middle Cambrian. Representatives of this family have been found in the paleocontinents of Avalonia, Baltica, and Gondwana, now Canada (Nova-Scotia, New Brunswick, Newfoundland), USA (Massachusetts, South Carolina), England, Wales, Morocco, Spain, Czech Republic, Poland, Russia (Novaya Zemlya, Northern Siberia, North-East Yakutia), Mongolia, and Turkey. Species in this family can typically grow large to very large (over 30 cm), are relatively flat, have an inverted egg-shaped outline, opisthoparian sutures, a glabella that in early genera has parallel sides and expands forward in later representatives, and approaches or reaches the frontal border. All species have an almost semicircular headshield (or cephalon) with long backward-directed genal spines. The articulate middle part of the body (or thorax) consists of 15 to 21 segments ending in sickle-shaped spines that to the back curve increasingly further backwards. The tailshield (or pygidium) is small. (en)
- Paradoxididae zijn een familie trilobieten uit het Midden-Cambrium, behorende tot de Redlichiida. Ze worden gevonden op diverse plaatsen ter wereld, vooral in gebieden die tot de voormalige continenten Gondwana en Baltica behoorden, zoals Newfoundland, Zweden, Tsjechië of Marokko. Paradoxididae waren zeer groot voor trilobieten, sommige soorten konden tot 40 cm lang worden. Het waren bodembewoners en filtervoeders van de benthische zone. (nl)
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- 2684 (xsd:nonNegativeInteger)
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- *Paradoxides
*Acadoparadoxides
*Anabaraceps
*Anabaraspis
*Bajanaspis
*Baltoparadoxides
*Hydrocephalus
*Phanoptes
*Plutonides
*Primoriella
*Schagonaria
*Schoriina (en)
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- Paradoxididae zijn een familie trilobieten uit het Midden-Cambrium, behorende tot de Redlichiida. Ze worden gevonden op diverse plaatsen ter wereld, vooral in gebieden die tot de voormalige continenten Gondwana en Baltica behoorden, zoals Newfoundland, Zweden, Tsjechië of Marokko. Paradoxididae waren zeer groot voor trilobieten, sommige soorten konden tot 40 cm lang worden. Het waren bodembewoners en filtervoeders van de benthische zone. (nl)
- The Paradoxididae are a family of trilobites, a group of extinct marine arthropods. They occurred during the late Lower Cambrian (Toyonian) and disappeared at the end of the Middle Cambrian. Representatives of this family have been found in the paleocontinents of Avalonia, Baltica, and Gondwana, now Canada (Nova-Scotia, New Brunswick, Newfoundland), USA (Massachusetts, South Carolina), England, Wales, Morocco, Spain, Czech Republic, Poland, Russia (Novaya Zemlya, Northern Siberia, North-East Yakutia), Mongolia, and Turkey. Species in this family can typically grow large to very large (over 30 cm), are relatively flat, have an inverted egg-shaped outline, opisthoparian sutures, a glabella that in early genera has parallel sides and expands forward in later representatives, and approaches or (en)
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- Paradoxididae (nl)
- Paradoxididae (en)
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