Cephalopoda - Ammonitida - Engonoceratidae
Alternative combinations: Epengonoceras dumbli, Metengonoceras dumblei, Sphenodiscus dumbli
Synonyms: Metengonoceras arnaudi Grossouvre 1912, Metengonoceras douvillei Grossouvre 1912, Metengonoceras nigeriense Furon 1935, Metengonoceras tolveiense Grossouvre 1912
Full reference: F. W. Cragin. 1893. A contribution to the invertebrate paleontology of the Texas Cretaceous. Texas Geological Survey Annual Report 4(2):139-295
Belongs to Metengonoceras according to M. F. Aly et al. 2008
See also Barber 1957, Cobban 1983, Cobban 1987, Diener 1925, Furon 1935, Grossouvre 1912, Hyatt 1903, Kennedy et al. 1981, Meister et al. 1992 and Spath 1924
Sister taxa: Metengonoceras acutum, Metengonoceras ambiguum, Metengonoceras aspenanum, Metengonoceras bedoti, Metengonoceras bravoense, Metengonoceras inscriptum, Metengonoceras oliveirai, Metengonoceras teigenense
Average measurements (in mm): shell diameter 97.0
Distribution:
• Cretaceous of Jordan (2 collections), Niger (4), Nigeria (1), United States (22: Colorado, Minnesota, Texas)
Total: 29 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.