Title: Prehistoric PredationCategory: GeologySubcategory: Difficulty: Unknown

Year 2004 Bowl: Shore Bowl

Author: C. Grant Law

Contact info: 732-932-6555 ext 310

Email law@marine.rutgers.edu

IMCS, Rutgers University

71 Dudley Rd.

New Brunswick, NJ 08901

QUESTIONRound: Time: 2 minutes Standard/Category: Geology

QUESTION:Predators have been roaming the oceans for a long time . . .

1) Draw lines between the best predator/prey pairs, making sure they pass through the geological period in which the predation would have occurred. (3 points for each correct pair and period, 2 points for a correct pair with an incorrect period)

2) Give a taxonomic identification more specific than phylum for each organism. Common names are acceptable. (I point for each identification)

Silurian

Devonian

Cambrian

Cretaceous

PREDATORS

PREY

ANSWERRound: Time: 2 minutes Standard/Category: Category

QUESTION/ANSWERS:

Silurian

Devonian

Cambrian

Cretaceous

Ammonoid, or ammonite

Arthrodire

Eurypterid, or water-scorpion

AnomalocarisActinopterygian,

or teleost

Marrella

Trilobite

Elasmobranch, or shark

1) 3 points for each correct predator/prey pair connected through the appropriate period. 2 points for each correct predator/prey pair passing through an incorrect period.

2) 1 point for each correctly identified animal.

Stokes, WL, 1973, Essentials of Earth History. Prentice-Hall Inc. (Figs. 11.3, 11.24, 20.9)Lane, NG, 1992, Life of the Past. MacMillan Publishing Co. (Fig. 12.14)Romer, AS, 1941, Man and the Vertebrates, The University of Chicago Press (p.21)Briggs, DEG et al. 1994, The Fossils of the Burgess Shale, Smithsonian Institution Press (pp. 201, 143)