Prev Page--Family MYALINIDAE || Next Page--References
Generic Status of Some Foreign Species of Mytilacea
The proper generic assignment of various species of the Mytilacea from the literature alone is made especially difficult because many critical characters of the hinge and shell microstructure are unknown for the majority of described species. Consequently, the following classification of the species described in a few of the classical monographs is probably accurate only in part. Some of the genera of Mytilacea are sufficiently distinctive as to be recognizable from external form alone. No pretense of completeness in the following list is made. It has been compiled chiefly to aid paleontologists to an understanding of my classification.
British Carboniferous Mytilacea
The species described by Hind (1896-1905), chiefly from the Lower Carboniferous are classified by me as follows:
MYALINA
Myalina verneuilii
Myalina peralata
SEPTIMYALINA
Myalina redesdalensis
Myalina pernoides
Myalina flemingi
Myalina lamellosa
Myalina sublamellosa
?SELENIMYALINA
Posidoniella elongata
Posidoniella pyriformis
Posidoniella variabilis
PROMYTILUS
Modiola patula
Lithodomus lingualis
Lithodomus lithodomoides
?PROMYTILUS
Modiola megaloba
Modiola transversa
Modiola emaciata
Modiola macadamii
Modiola lata
LITHOPHAGA
Lithodomus carbonarius
Modiola jenkinsi
?NAIADITES
Modiola ligonula
Carboniferous Mytilacea from the Donetz Basin, U. S. S. R.
Fedotov's monograph (1932) on the Donetz Basin pelecypods includes a number of species of Mytilacea. Fedotov unfortunately has employed the names of American species for a large proportion of his pelecypods. His identifications suggest a precise understanding of the characters of American species. Until restudied in the light of modern concepts and techniques a great host of forms described in the early days cannot be understood from the literature alone.
ORTHOMYALINA
Myalina ampla
?SELENIMYALINA
Myalina monroensis
SEPTIMYALINA
Myalina aff. aviculoides
Myalina perattenuata
Myalina verneuilii Myalina sp.
MYALINELLA
Myalina cf. elongata
PROMYTILUS
Myalina swallovi
?VOLSELLINA
Modiola cf. illinoiensis
LITHOPHAGA
Lithophagus cf. batesvillensis
Upper Carboniferous and Lower Permian, North China
Chao's report (1927) on the Taiyuan formation includes two species. I would classify them as follows:
PROMYTILUS
Myalina swallowi (pl. 1, figs. 29, 30)
?SEPTIMYALINA
Myalina swallowi (pl. 1, fig. 31)
Upper Carboniferous, U. S. S. R.
Stuckenberg (1898, 1905) has described the following Mytilacea:
PROMYTILUS
Modiola gigantea
?VOLSELLINA
Sanguinolites sp.
Permian, Salt Range, India
Waagen's (1881) report on the Permian pelecypods of the Salt Range includes the following:
LITHODOMINA
Lithodomina typica
Lithodomina abbreviata
ATOMODESMA
Atomodesma indicum
LIEBEA
Liebea hausmanni
Liebea indica
LITHOPHAGA
Lithodomus atavus
VOLSELLINA
Modiola transparens
?MYALINELLA
Mytilus patriarchalis
?SELENIMYALINA
Septifer squama
Prev Page--Family MYALINIDAE || Next Page--References
Kansas Geological Survey, Geology
Placed on web Dec. 18, 2017; originally published 1942.
Comments to webadmin@kgs.ku.edu
The URL for this page is http://www.kgs.ku.edu/Publications/Bulletins/Vol10_2/05_foreign.html