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DIPLOTOMODON

a dubious theropod dinosaur from the Late Cretaceous of North America.
Pronunciation: DIP-lo-TOM-o-don
Meaning: Double cutting tooth
Author/s: Leidy (1868)
Synonyms: Tomodon (Leidy, 1865)
First Discovery: New Jersey, USA
Discovery Chart Position: #27

Diplotomodon horrificus

(Horrific Double Cutting Tooth)Etymology
Diplotomodon is derived from the Greek "diploos" (double), "tomo" (cut) and "odon" (tooth), named for the blade-like shape of the tooth.
The species epithet, horrificus, means "horrific, dreadful" in Latin.
Discovery
Diplotomodon was discovered in either the Navesink or Hornerstown Formation (it wasn't well documented) near Mullica Hill, Gloucester County, New Jersey, USA, by Dr William B. Atkinson.
The holotype (ANSP 9680) is a single, blade-like tooth.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Maastrichtian
Age range: 70-66 mya
Stats:
Est. max. length: ?
Est. max. hip height: ?
Est. max. weight: ?
Diet: Carnivore
Diplotomodon
horrificus
References
• Leidy J (1865) "Memoir on the extinct reptiles of the Cretaceous formations of the United States". Smithsonian Contribution to Knowledge, 14: 1-135.
• Leidy J (1868) "Remarks on CONOSAURUS of Gibbes". Proceedings of the Academy of Natural Sciences of Philadelphia, 20: 200-202.
• Cope ED (1870) "Synopsis of the extinct Batrachia, Reptilia and Aves of North America". Transactions of the American Philosophical Society, New Series, 14(1): 1-252.
• Molnar R (1990) "Problematic Theropoda: "Carnosaurs"". Page 306-317 Weishampel, Dodson and Osmolska (eds.) "The Dinosauria: First Edition".
• Holtz jnr TR (2004) "Tyrannosauroidea". Page 111-136 in Weishampel, Dodson and Osmolska (eds.) "The Dinosauria: Second Edition".
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To cite this page:
Atkinson, L. "DIPLOTOMODON :: from DinoChecker's dinosaur archive".
›. Web access: 07th Mar 2026.
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