Characters
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Neurotrichus gibbsi
(Baird, 1858)
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? Neurotrichus polonicus
Skoczeń, 1980
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Quyania chowi
Storch and Qiu, 1983
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Quyania aff. polonica
(Skoczeń, 1980)
in Popov, 2004
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Quyania europaea n. sp
previously Scaptonyx ? dolichochir (Skoczeń 1980) and Urotrichus sp. in Rzebik-Kowalska, 2009
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P4
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relatively narrow, precingulum and parastyle absent
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broader, strong
precingulum connecting the protocone, parastyle absent
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broader, strong precingulum connecting the parastyle and the protocone
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-
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-
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M1
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parastyle reduced, not protruding lingually, ectocingulum weak
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parastyle strong, protruding lingually, ectocingulum strong
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parastyle strong, protruding lingually, ectocingulum strong
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-
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-
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M2
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precingulum and postcingulum absent
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precingulum and postcingulum poor or absent
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precingulum and postcingulum usually present
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-
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-
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anterior mental foramen
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below p3
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below c/p3
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below p2
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below p3
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below p2
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p3
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narrow, conspicuously narrowing posteriorly
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posterior wall relatively broad with a longitudinal groove along the posterior wall
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wide, its posterior wall broad and basined
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-
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-
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p4
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elongated, talonid narrow, ectocingulum and entocingulum discontinuous
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wide, talonid broad, cingulum weak, discontinuous
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wide, talonid broad, encircled by a distinct cingulum
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-
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-
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m1
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trigonid elongated with the paraconid directed more anteriorly, mesoconid absent, crista obliqua is not separated by a small notch from the posterior wall of the trigonid
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trigonid short and robust with the paraconid placed slightly antero-lingually, mesoconid absent, or very small,
crista obliqua terminates anteriorly (bucally) and is slightly separated or not separated by a small notch from the posterior wall of the trigonid
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trigonid short with the paraconid placed antero-lingually, mesoconid present, crista obliqua terminates anteriorly (buccally) at the level of the protoconid and is separated by a small notch from the posterior wall of the trigonid
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trigonid short, the paraconid situated slightly lingually in relation to the long axis of the tooth, mesoconid absent, crista obliqua terminate nearly in the middle of the posterior wall of the trigonid and is separated from it by a small notch
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trigonid short, paraconid placed slightly lingually, mesoconid present, crista obliqua terminates anteriorly (buccally), separated by a small notch from the posterior wall of the trigonid.
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