A. PYRMIDALUS Hoare, R.D.; Sturgeon, M.T.; Hoare, T.B. (1972). "Middle Pennsylvanian (Allegheny Group) Polyplacophora from Ohio". Journal of Paleontology. 46 (5): 675–680.
JSTOR1303024.
A. PANNUCEUS Hoare, R.D.; Mapes, R.H. (1985). "A New Species of Pennsylvanian Polyplacophora (Mollusca) from Texas". Journal of Paleontology. 59 (5): 1324–1326.
JSTOR1305023.
A. ALLYNSMITHI HOARE, R. D., R. H. MAPES, AND D. E. ATWATER. 1983. Pennsylvanian
Polyplacophora (Mollusca) from Oklahoma and Texas. Journal of
Paleontology, 57:992-1000
A. depressolatus Hoare, Richard D. (June 1999). "New Occurrences and a New Species of Pennsylvanian Polyplacophorans (Mollusca) in Ohio". The Ohio Journal of Science. 99 (3): 49–52.
hdl:
1811/23819.
A. PYRMIDALUS Hoare, R.D.; Sturgeon, M.T.; Hoare, T.B. (1972). "Middle Pennsylvanian (Allegheny Group) Polyplacophora from Ohio". Journal of Paleontology. 46 (5): 675–680.
JSTOR1303024.
A. PANNUCEUS Hoare, R.D.; Mapes, R.H. (1985). "A New Species of Pennsylvanian Polyplacophora (Mollusca) from Texas". Journal of Paleontology. 59 (5): 1324–1326.
JSTOR1305023.
A. ALLYNSMITHI HOARE, R. D., R. H. MAPES, AND D. E. ATWATER. 1983. Pennsylvanian
Polyplacophora (Mollusca) from Oklahoma and Texas. Journal of
Paleontology, 57:992-1000
A. depressolatus Hoare, Richard D. (June 1999). "New Occurrences and a New Species of Pennsylvanian Polyplacophorans (Mollusca) in Ohio". The Ohio Journal of Science. 99 (3): 49–52.
hdl:
1811/23819.