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Gerthia
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Plerophyllina
Family:
Polycoeliidae
Subfamily:
Polycoeliinae
Formal Genus Name and Reference:
Gerthia GRABAU, 1928, p. 29
Type Species:
Polycoelia angusta ROTHPLETZ, 1892, p. 69; OD; +not traced
Images
(Click to enlarge in a new window)
Fig. 211,2a-c. *G. angusta (ROTHPLETZ), Timor, Ajer Mati R. near Kupang; a, long., b,c, transv. sees., all X2 (Rothpletz, 1892).
Synonyms
Geographic Distribution
W.Australia; V.Perm., Asia(Timor)
Age Range
Beginning Stage in Treatise Usage:
L.Perm.
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
L.Perm.
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
Small, solitary, slightly curved; cardinal, counter, and two alar septa longer and rhopaloid, strongly thickened toward their rounded axial edges; other major septa unequal, longest commonly occupying median position in each quadrant; septal insertion accelerated in counter quadrants; minor septa moderately long, no dissepiments, marginarium a nar- row peripheral stereozone; tabulae thin. [Diagnosis based on GERTH'S 1921 descriptions and figures; his specimens may not be conspecific with those of ROTHPLETZ. The genus requires revision.]
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Plerophyllina
Family:
Polycoeliidae
Subfamily:
Polycoeliinae
Formal Genus Name and Reference:
Gerthia GRABAU, 1928, p. 29
Type Species:
Polycoelia angusta ROTHPLETZ, 1892, p. 69; OD; +not traced
Images
(Click to enlarge in a new window)
Fig. 211,2a-c. *G. angusta (ROTHPLETZ), Timor, Ajer Mati R. near Kupang; a, long., b,c, transv. sees., all X2 (Rothpletz, 1892).
Synonyms
Geographic Distribution
W.Australia; V.Perm., Asia(Timor)
Age Range
Beginning Stage in Treatise Usage:
L.Perm.
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
L.Perm.
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
Small, solitary, slightly curved; cardinal, counter, and two alar septa longer and rhopaloid, strongly thickened toward their rounded axial edges; other major septa unequal, longest commonly occupying median position in each quadrant; septal insertion accelerated in counter quadrants; minor septa moderately long, no dissepiments, marginarium a nar- row peripheral stereozone; tabulae thin. [Diagnosis based on GERTH'S 1921 descriptions and figures; his specimens may not be conspecific with those of ROTHPLETZ. The genus requires revision.]