Inferred placoderm bite marks on Devonian crinoids from Poland

被引:11
|
作者
Gorzelak, Przemyslaw [1 ]
Rakowicz, Lukasz [1 ]
Salamon, Mariusz A. [2 ]
Szrek, Piotr [3 ]
机构
[1] Polish Acad Sci, Inst Paleobiol, PL-00818 Warsaw, Poland
[2] Univ Silesia, Fac Earth Sci, Dept Paleontol & Biostratig, PL-41200 Sosnowiec, Poland
[3] Polish Geol Inst, Natl Res Inst, PL-00975 Warsaw, Poland
关键词
Predation; crinoids; Devonian; Poland; placoderms; MESOZOIC MARINE REVOLUTION; BENTHIC PREDATION; WESTERN-AUSTRALIA; ARM REGENERATION; ORDOVICIAN; AREA; GOGO;
D O I
10.1127/0077-7749/2010/0111
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
Crinoid ossicles bearing plausible placoderm bite marks are described from the Middle Devonian (Eifelian) of central Poland (Holy Cross Mountains). Damage to the ossicles includes a series of regularly spaced, shallow and crater-shaped indentations, which are circular or slightly oval in outline. The dimension and spacing of these damage match the jaw morphology of certain placoderms probably belong to Coccosteidae (Arthrodira). The present discovery constitutes possible evidence of predator-prey interaction in the Middle Devonian. During this time, referred to as the Middle Palaeozoic marine revolution, diversification of durophagous predators occurred, which resulted in increases in defensive adaptations among prey taxa including crinoids (such as: thickening calyx plates, reduction of viscera and increase of spinosity).
引用
收藏
页码:105 / 112
页数:8
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