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Glossomorphites
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Palaeocopida
Suborder:
Beyrichicopina
Superfamily:
Hollinacea
Family:
Sigmoopsidae
Formal Genus Name and Reference:
Glossomorphites HESSLAND, 1954
Type Species:
Glossopsis lingua HESSLAND, 1949
Images
(Click to enlarge in a new window)
Fig. 87,3. *G. lingua (Hessland), Swed., 3a,b, LV lat., dors., X50 (Kesling). -- Fig. 87,1. G. alatus (Hessland), Swed., RV lat., X60 (Kesling, 1951).
Synonyms
Geographic Distribution
Eu.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Valves quadrilobate but lobes unequal, L1 being elongate (linguiform in some species), L2 ridgelike, L3 and $L_{4}$ confluent dorsally though separated by a fissure ventrally, sulci unequal, S1 elongate and rather narrow, S2 deeper and wider than other sulci and reaching from hinge line to ventral part of valve, S3 a fissure confined to middle and ventral parts of valve, ventral ridge or histium developed only along anterior and ventral sections of free border.
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Palaeocopida
Suborder:
Beyrichicopina
Superfamily:
Hollinacea
Family:
Sigmoopsidae
Formal Genus Name and Reference:
Glossomorphites HESSLAND, 1954
Type Species:
Glossopsis lingua HESSLAND, 1949
Images
(Click to enlarge in a new window)
Fig. 87,3. *G. lingua (Hessland), Swed., 3a,b, LV lat., dors., X50 (Kesling). -- Fig. 87,1. G. alatus (Hessland), Swed., RV lat., X60 (Kesling, 1951).
Synonyms
Geographic Distribution
Eu.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Valves quadrilobate but lobes unequal, L1 being elongate (linguiform in some species), L2 ridgelike, L3 and $L_{4}$ confluent dorsally though separated by a fissure ventrally, sulci unequal, S1 elongate and rather narrow, S2 deeper and wider than other sulci and reaching from hinge line to ventral part of valve, S3 a fissure confined to middle and ventral parts of valve, ventral ridge or histium developed only along anterior and ventral sections of free border.