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Class: CEPHALOPODA
--- Taxon Tree: AMMONOIDEA [Subclass]-AMMONITIDA [Order]-ANCYLOCERATINA [Suborder]-ANCYLOCERATOIDEA [Superfamily]
------ Family: PTYCHOCERATIDAE Meek, 1876 † (Sea) (FOSSIL)
DB counters=40, Genus=4, Subgenus=1, Species=23, Subspecies=1, Synonyms=10, Images=2
DB counters include Fossil taxa: Species=23, Subspecies=1
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adpressus, Mastigohamites adpressus (J. de C. Sowerby, 1814) † (FOSSIL)
aequicostatus, Ptychoceras aequicostatus Gabb, 1864 † - syn of: Helicancylus aequicostatus (Gabb, 1864) † (FOSSIL)
biasalense, Ptychoceras biasalense Andjelkovic, 0 † - syn of: Euptychoceras subundulatum (D'Orbigny, 1850) † (FOSSIL)
closteroides, Tricoloceras closteroides (Etheridge, 1904) † (FOSSIL)
closteroides, Ptychoceras closteroides Etheridge, 1904 † - syn of: Tricoloceras closteroides (Etheridge, 1904) † (FOSSIL)
dittleri, Ptychoceras dittleri Vasicek, 1972 † (FOSSIL)
emericanum, Ptychoceras emericanum D'Orbigny, 1842 † (FOSSIL)
emericianum, Ptychoceras emericianum (D'Orbigny, 1842) † (FOSSIL)
forbesianum, Ptychoceras forbesianum Stoliczka, 1866 † (FOSSIL)
gilberti, Pseudoptychoceras gilberti Etayo-Serna, 1979 † (FOSSIL)
glaber, Diptychoceras glaber Whiteaves, 1884 † (FOSSIL)
hamaimense, Ptychoceras laeve hamaimense Pervinquiere (FOSSIL)
humboldtianum, Ptychoceras humboldtianum Karsten, 1858 † (FOSSIL)
inostranzewi, Ptychoceras inostranzewi Breistroffer, 1952 † - syn of: Euptychoceras subundulatum (D'Orbigny, 1850) † (FOSSIL)
laeve, Diptychoceras laeve Gabb, 1869 † (FOSSIL)
laeve, Ptychoceras laeve Matheron, 1842 † (FOSSIL)
laeve hamaimense, Ptychoceras laeve hamaimense Pervinquiere, 1907 † (FOSSIL)
lashense, Ptychoceras lashense Sharikadze, 1975 † (FOSSIL)
levigatum, Ptychoceras levigatum Egoian, 1969 † (FOSSIL)
mazapilense, Diptychoceras mazapilense Bose, 1923 † (FOSSIL)
meyrati, Ptychoceras meyrati Ooster, 1860 † - syn of: Euptychoceras meyrati (Ooster, 1860) † (FOSSIL)
minimum, Ptychoceras minimum Rouchadze, 1933 † (FOSSIL)
Morloti, Ptychoceras Morloti Ooster, 1860 † - syn of: Euptychoceras morloti (Ooster, 1860) † (FOSSIL)
natrice, Ptychoceras natrice Anderson, 1938 † - syn of: Euptychoceras natrice (Anderson, 1938) † (FOSSIL)
nikchitchi, Diptychoceras nikchitchi Rouchadze, 1938 † (FOSSIL)
obliquesulcatum, Ptychoceras obliquesulcatum Avram, 1976 † (FOSSIL)
orbignyi, Ptychoceras orbignyi Reynes, 1876 † (FOSSIL)
parvum, Ptychoceras parvum Egoian, 1968 † (FOSSIL)
poni, Ptychoceras poni Simionescu, 1898 † (FOSSIL)
puzosianum, Ptychoceras puzosianum D'Orbigny, 1842 † (FOSSIL)
renngarteni, Ptychoceras renngarteni Egoian, 1968 † (FOSSIL)
sipho, Ptychoceras sipho Forbes, 1846 † - syn of: Phylloptychoceras sipho (Forbes, 1846) † (FOSSIL)
smithi, Ptychoceras smithi Woods, 1896 † (FOSSIL)
teschenense, Ptychoceras teschenense Uhlig, 1902 † - syn of: Euptychoceras teschenense (Uhlig, 1902) † (FOSSIL)
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