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
Ecology: epifaunal herbivore
Distribution:
• Ordovician of Canada (45: Nunavut, Ontario, Quebec, Québec collections), United States (69: Georgia, Illinois, Iowa, Indiana, Iowa, Kentucky, Michigan, Minnesota, Missouri, New York, Tennessee, Wisconsin)
Total: 114 collections including 128 occurrences
Specimen images are retrieved through the ePANDDA API.
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