HOME


Ptychodus
ver. 1.1
Back & Forth



Order Hybodontiformes ZANGERL, 1981
Family Ptychodontidae JAEKEL, 1898
Genus Ptychodus AGASSIZ, 1838

Ptychodus anonymus WILLISTON, 1900 : Turonian, Kamp Ranch Formation Dallas County

13 mm W
Ptychodus decurrens (AGASSIZ, 1848): Del Rio Formation (Blue Cut), McLennan County

7.8 mm W
Ptychodus elevatus: Lower Santonian, Chilisay, Aktyubinsk Region, W. Kazakhstan


Ptychodus latissimus (AGASSIZ, 1835): Upper Cretaceous, Arcadia Park Fm., Kamp Ranch Mbr, 544 Josey Ln./Fyke Rd. (cooks Creek) Dallas County

25 mm W
Ptychodus mammillaris (AGASSIZ, 1835): Upper Cretaceous, Arcadia Park Fm., Kamp Ranch Mbr, 544 Josey Ln./Fyke Rd. (cooks Creek) Dallas County

24 mm W
Ptychodus mortoni AGASSIZ, 1839: Upper Cretaceous, Niobrara Chalk Formation, Gove County, Kansas

38 mm W
Ptychodus multistriatus: Turonian, Ulanak, Mangyshlak

28 mm W
Ptychodus occidentalis (LEIDY, 1868): Blue Hill Shale Mbr., Fort Hayes Ls. Hatchett Ranch, Pueblo County, Colorado

7.5 mm W
Ptychodus paucisulcatus (pictured Ekaterinburg 1999, Vol. 2, page 238): Lower Santonian, Chilisay, Aktyubinsk Region, W. Kazakhstan

18 mm W
Ptychodus polygyrus (AGASSIZ, 1835): Upper Cretaceous, Arcadia Park Fm., Kamp Ranch Mbr, 544 Josey Ln./Fyke Rd. (cooks Creek) Dallas County

26 mm W
Ptychodus whipplei (MARCOU, 1858): a; Juana Lopez Mbr., Carlisle Shale, Hatchett Ranch, Pueblo County, Colorado, b; Eagleford Group Kamp Ranch Formation Dallas County


20120302


Ptychodus mortoni AGASSIZ, 1839: Upper Cretaceous, Niobrara Chalk Formation, Gove County, Kansas



Back & Forth


HOME

J-elasmo