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GEOREF RECORD

Signs of boring predation on Middle Devonian hyolithids from the Michigan Basin

Tomasz K. Baumiller, John C. Marinovic, Megan E. Tuura, Emily S. Damstra and Daniel J. Miller
Signs of boring predation on Middle Devonian hyolithids from the Michigan Basin
Palaios (October 2010) 25 (10): 636-641

Abstract

A large number of specimens ( approximately 500) of the hyolithid Hallotheca cf. aclis (Hall) were collected from the Middle Devonian Arkona Shale at Hungry Hollow, Ontario, Canada. This is an unusually large sample for Devonian hyolithids and only the second record of hyolithids from the Michigan Basin. Furthermore, the conchs of seven specimens are bored, and the holes are single, complete, circular in plan view, and with their long axes perpendicular to the walls of the conch. These traits and the fact that the holes are stereotyped with respect to the side of the conch--all occur on the venter--are consistent with a predatory origin of the holes. Although bored specimens represent only approximately 1% of the sample, this record expands the taxonomic breadth of bored prey during the middle Paleozoic, a time previously recognized as characterized by intensification of predator-prey interactions.


ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 25
Serial Issue: 10
Title: Signs of boring predation on Middle Devonian hyolithids from the Michigan Basin
Affiliation: University of Michigan, Museum of Paleontology, Ann Arbor, MI, United States
Pages: 636-641
Published: 201010
Text Language: English
Publisher: Society for Sedimentary Geology, Tulsa, OK, United States
References: 55
Accession Number: 2010-093224
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. strat. col., sketch map
N43°06'00" - N43°06'00", W81°54'00" - W81°54'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States
Update Code: 201049
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