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Encrinurus
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Phacopida
Superfamily:
Proetacea
Family:
Encrinuridae
Formal Genus Name and Reference:
Encrinurus Emmrich, 1844
Type Species:
Entomostracites punctatus Wahlenberg, 1821 (1819), by suppression of Trilobus punctatus Brünnich, 1781 (proposed by R. P. TRIPP, 1956, ICZN pend.)
Images
(Click to enlarge in a new window)
Fig. 350, 4. E. sp. cf. E. punctatus (Wahlenberg), 4a, ceph., front, 4 b, hypostoma, 4 c, exoskel., all x2.2 ( 406 n, reconstr. based on material from Llandov. Sh., Oslo, Norway).
Synonyms
Cryptonymus
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
M.Ord.
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
Sil.
Ending International Stage:
Pridoli
Fraction Up In Ending Stage:
100
Ending Date:
419
Description
Glabella widening markedly forward, with 3 pairs of lateral or transglabellar furrows, eyes more or less stalked. Thorax with 11 or 12 segments. Pygidium subtriangular, longer than broad, with 5 to 10 pairs of ribs. M.Ord.-Sil., cosmop.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Phacopida
Superfamily:
Proetacea
Family:
Encrinuridae
Formal Genus Name and Reference:
Encrinurus Emmrich, 1844
Type Species:
Entomostracites punctatus Wahlenberg, 1821 (1819), by suppression of Trilobus punctatus Brünnich, 1781 (proposed by R. P. TRIPP, 1956, ICZN pend.)
Images
(Click to enlarge in a new window)
Fig. 350, 4. E. sp. cf. E. punctatus (Wahlenberg), 4a, ceph., front, 4 b, hypostoma, 4 c, exoskel., all x2.2 ( 406 n, reconstr. based on material from Llandov. Sh., Oslo, Norway).
Synonyms
Cryptonymus
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
M.Ord.
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
Sil.
Ending International Stage:
Pridoli
Fraction Up In Ending Stage:
100
Ending Date:
419
Description
Glabella widening markedly forward, with 3 pairs of lateral or transglabellar furrows, eyes more or less stalked. Thorax with 11 or 12 segments. Pygidium subtriangular, longer than broad, with 5 to 10 pairs of ribs. M.Ord.-Sil., cosmop.