Hormotoma gracilis Hall 1847 (snail)

Gastropoda - Murchisoniina - Hormotomidae

Alternative combinations: Murchisonia (Hormotoma) gracilis, Murchisonia gracilis

Full reference: J. Hall. 1847. Containing descriptions of the organic remains of the lower division of the New York system (equivalent of the Lower Silurian rocks of Europe). Paleontology of New York 1:1-338

Belongs to Murchisonia (Hormotoma) according to P. J. Wagner 1999

See also Foerste 1923, Hall 1847, Knight 1941, Knight et al. 1960, Liberty 1969, Salter 1859, Ulrich and Scofield 1897 and Wilson 1951

Sister taxa: Hormotoma aculeata, Hormotoma acuminata, Hormotoma agilis, Hormotoma altesinuata, Hormotoma amii, Hormotoma anna, Hormotoma antigonishensis, Hormotoma antiqua, Hormotoma arisaigensis, Hormotoma artemesia, Hormotoma articulata, Hormotoma bilineata, Hormotoma bistriata, Hormotoma cassina, Hormotoma centervillensis, Hormotoma concinnus, Hormotoma confusa, Hormotoma cotterensis, Hormotoma doquieri, Hormotoma dubia, Hormotoma dubia, Hormotoma exilis, Hormotoma fascinata, Hormotoma funata, Hormotoma gigantea, Hormotoma gracilens, Hormotoma gracillima, Hormotoma grayiana, Hormotoma hyale, Hormotoma inceptor, Hormotoma insignis, Hormotoma latifasciatum, Hormotoma lutiensis, Hormotoma meryenorfi, Hormotoma meyendorfi, Hormotoma minnesotensis, Hormotoma moderata, Hormotoma multivolvis, Hormotoma neglecta, Hormotoma nigra, Hormotoma oehlerti, Hormotoma ordosensis, Hormotoma ordovix, Hormotoma patriciaensis, Hormotoma piperi, Hormotoma polita, Hormotoma prava, Hormotoma robusta, Hormotoma rotundivolvis, Hormotoma rudis, Hormotoma scrobiculata, Hormotoma simplex, Hormotoma striatula, Hormotoma subangulata, Hormotoma tenuifilosa, Hormotoma teretiformis, Hormotoma vesta, Hormotoma wilsoni, Hormotoma winnipegensis, Murchisonia (Hormotoma) gracillima, Murchisonia (Hormotoma) patriciaensis

Subtaxa: Hormotoma gracilis angustata Hormotoma gracilis angustatus Hormotoma gracilis goodhuensis Hormotoma gracilis multivolvis Hormotoma gracilis sublaxa

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Ecology: epifaunal herbivore

Distribution:

• Ordovician of Canada (44: Nunavut, Ontario, Quebec, Québec collections), United States (69: Georgia, Illinois, Iowa, Indiana, Iowa, Kentucky, Michigan, Minnesota, Missouri, New York, Tennessee, Wisconsin)

Total: 113 collections including 127 occurrences

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