Format

Send to

Choose Destination
See comment in PubMed Commons below
Science. 2004 Sep 3;305(5689):1453-5.

Testing predator-driven evolution with Paleozoic crinoid arm regeneration.

Author information

1
University of Michigan Museum of Paleontology, Ann Arbor, MI 48105, USA. tomaszb@umich.edu

Abstract

Regenerating arms of crinoids represent direct evidence of nonlethal attacks by predators and provide an opportunity for exploring the importance of predation through geologic time. Analysis of 11 Paleozoic crinoid Lagerst├Ątten revealed a significant increase in arm regeneration during the Siluro-Devonian. During this interval, referred to as the Middle Paleozoic Marine Revolution, the diversity of shell-crushing predators increased, and antipredatory morphologies among invertebrate prey, such as crinoids, became more common. Crinoid arm regeneration data suggest an increase in nonlethal attacks at this time and represent a causal link between those patterns, which implies an important role for predator-driven evolution.

PMID:
15353799
DOI:
10.1126/science.1101009
[Indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Support Center