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Dechenella
Classification
Phylum:
Arthropoda
Subphylum:
Trilobitomorpha
Class:
Trilobita
Order:
Ptychopariida
Suborder:
Illaenina
Superfamily:
Proetacea
Family:
Proetidae
Subfamily:
Dechenellinae
Formal Genus Name and Reference:
Dechenella KAYSER, 1880
Type Species:
Phillipsia verneuili BARRANDE, 1852; SD VOGDES, 1890
Images
(Click to enlarge in a new window)
Fig. 297, 1. *D. (D.) vernetili (Barrande), Ger.(Gerolstein), exoskel., x2 (460n), Fig. 297, 6. D. (D.) burmeisteri (Rud. Richter), Ger.(Hagen), 6 a, b, ceph., pyg., x2 (460)
Synonyms
Geographic Distribution
N.Hemis.
Age Range
Beginning Stage in Treatise Usage:
Up.L.Dev.
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
0
Beginning Date:
410.51
Ending Stage in Treatise Usage:
M.Dev.
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Glabella with 3 or 4 distinct, mostly deep lateral furrows; anterior sections of facial sutures angulated at border furrow; librigenae with Aat, convex, or keeled platforms. HI'j)" ,toma elongate, with long, oval anterior lobe that is sharply defined anteriorly, equally convex and without spine, with middle furrow, posterior margin bearing pair of points. Pygidium very elongate; anterior part of axis more tapering than posterior.
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Trilobitomorpha
Class:
Trilobita
Order:
Ptychopariida
Suborder:
Illaenina
Superfamily:
Proetacea
Family:
Proetidae
Subfamily:
Dechenellinae
Formal Genus Name and Reference:
Dechenella KAYSER, 1880
Type Species:
Phillipsia verneuili BARRANDE, 1852; SD VOGDES, 1890
Images
(Click to enlarge in a new window)
Fig. 297, 1. *D. (D.) vernetili (Barrande), Ger.(Gerolstein), exoskel., x2 (460n), Fig. 297, 6. D. (D.) burmeisteri (Rud. Richter), Ger.(Hagen), 6 a, b, ceph., pyg., x2 (460)
Synonyms
Geographic Distribution
N.Hemis.
Age Range
Beginning Stage in Treatise Usage:
Up.L.Dev.
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
0
Beginning Date:
410.51
Ending Stage in Treatise Usage:
M.Dev.
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Glabella with 3 or 4 distinct, mostly deep lateral furrows; anterior sections of facial sutures angulated at border furrow; librigenae with Aat, convex, or keeled platforms. HI'j)" ,toma elongate, with long, oval anterior lobe that is sharply defined anteriorly, equally convex and without spine, with middle furrow, posterior margin bearing pair of points. Pygidium very elongate; anterior part of axis more tapering than posterior.