Re: Large UK "velociraptorine teeth"

["Mickey Mortimer" <Mickey_Mortimer111@msn.com>]

Ralph W. Miller III wrote-

> If this large theropod was indeed a dromaeosaur, and if it was a
contemporary of Liaoning dromaeosaurs,
> then this suggests (to me) that dromaeosaurs must have originated much
earlier than 125 million years ago > to have produced such diversity.

Jurassic dromaeosaurs-

unnamed 'velociraptorine' (Britt 1991)
Tithonian, Late Jurassic
Brushy Basin Member of Morrison Formation, Colorado, US
Material- (BYUVP 9597) tooth
(BYUVP 9603) tooth
(BYUVP 9605) tooth (12 mm)
(BYUVP 9611) tooth (7 mm)
Reference- Britt, 1991. Theropods of Dry Mesa Quarry (Morrison Formation,
Late Jurassic), Colorado, with emphasis on the osteology of Torvosaurus
tanneri. Brigham Young University Geology Studies, 37 1-72.

undescribed "Dromaeosauria" (Chure, Madsen and Britt 1993)
Tithonian, Late Jurassic
Brushy Basin Member of Morrison Formation, Utah, US
Material- teeth
References- Chure, D.J., Madsen, J.H. & Britt, B.B. (1993). New Data on
Theropod Dinosaurs from the Late Jurassic Morrison FM. (MF). Journal of
Vertebrate Paleontology. 13 (suppl. to 3): 30A.
Chure, D.J. (1995). The Teeth of Small Theropods from the Morrison Formation
(Upper Jurassic: Kimmeridgian), UT. Journal of Vertebrate Paleontology. 15
(suppl. to 3): 23A.

undescribed dromaeosaur (Goodwin, Clemens, Hutchison, Wood, Zavada, Kemp,
Duffin and Schaff 1999)
Tithonian, Late Jurassic
Mugher Mudstone, Ethiopia
Material- (JN-96-2B/UCMP 170803) tooth
Reference- Goodwin, M. B., Clemens, W. A., Hutchinson, J. H., Wood, C. B.,
Zavada, M. S., Kemp, A., Duffin, C. J., and Schaff, C. R., 1999, Mesozoic
continental vertebrates with associated palynostratigraphic dates from the
northwestern Ethiopian Plateau: Journal of Vertebrate Paleontology, v. 19,
n. 4, p. 728-741.

undescribed dromaeosaur (Turner and Peterson, 1999)
Late Oxfordian-Tithonian, Late Jurassic
Mother's Day Quarry, Morrison Formation, Montana, US
Reference- Turner, C. E., and Peterson, F., 1999, Biostratigraphy of
Dinosaurs in the Upper Jurassic Morrison Formation of the Western Interior
U.S.A: In: Vertebrate Paleontology in Utah, edited by Gillette, D. D.,
Miscellaneous Publication 99-1, Utah Geological Survey, p. 77-114.

unnamed dromaeosaurine (Zinke 1998)
Kimmeridgian, Late Jurassic
Guimarota Formation, Portugal
Material- (Gui D 77) premaxillary tooth (8.05 mm)
References- Zinke, J., (1998). Small theropod teeth from the Upper Jurassic
coal mine of Guimarota (Portugal). Palaontologische Zeitschrift, 72, 1/2:
179-189.
Rauhut, O. W. M. (2000). The dinosaur fauna from the Guimarota mine, pp.
75-82. In: Martin, T. and Krebs, B. (eds) Guimarota - A Jurassic Ecosystem.
Verlag Dr. Friedrich Pfeil, Munchen. ISBN 3- 931516-80-6.

unnamed 'velociraptorine' (Zinke 1998)
Kimmeridgian, Late Jurassic
Guimarota Formation, Portugal
Material- (IPFUB GUI D 66-88, 99, 101, 157, 158, 170) 28 teeth (~2.26 mm)
References- Zinke, J., (1998). Small theropod teeth from the Upper Jurassic
coal mine of Guimarota (Portugal). Palaontologische Zeitschrift, 72, 1/2:
179-189.
Rauhut, O. W. M. (2000). The dinosaur fauna from the Guimarota mine, pp.
75-82. In: Martin, T. and Krebs, B. (eds) Guimarota - A Jurassic Ecosystem.
Verlag Dr. Friedrich Pfeil, Munchen. ISBN 3- 931516-80-6.

undescribed dromaeosaur (Novikov, Lebidev and Alifanov 1998)
Bathonian, Middle Jurassic
Peski, Russia
Material- tooth
Reference- Novikof, I. V., Lebedev, O. A., and Alifanov, V. R., 1998, New
Mesozoic vertebrate fossil sites of Russia: In: Third European Workshop on
Vertebrate Paleontology, Maastricht, 6-9 May 1998, p. 58.

undescribed possible "Dromaeosauria" (Metcalf, Vaughan, Benton, Cole, Simms
and Dartnall 1992)
Early Bathonian, Middle Jurassic
Chipping Norton Formation, England
Material- (GLRCM G.50823, G.51422, coll.) five teeth
Comments- Show characters similar to dromaeosaurs, troodontids and
Richardoestesia
References- Metcalf, Vaughan, Benton, Cole, Simms and Dartnall, 1992. A new
Bathonian (Middle Jurassic) microvertebrate site, within the Chipping Norton
Limestone Formation at Hornsleasow Quarry, Gloucestershire. Proceedings of
the Geologists' Assoc. 103: 321-342.
Benton, M. 1993. Diversity and Evolution of the Dinosaurs. National
Environmental Research Council News 27: 30-33.
Metcalf and Walker. 1994. A new Bathonian microvertebrate locality in the
English Midlands. in Fraser and Sues (eds.) In the Shadow of the Dinosaurs-
Mesozoic Small Tetrapods, Cambridge (Cambridge University Press).

Mickey Mortimer