caa a22 4500 606228179 CHVBK 20210128101202.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10641-014-0308-x doi (NATIONALLICENCE)springer-10.1007/s10641-014-0308-x Ecomorphology of the Mississippian fishes of the Bear Gulch Limestone (Heath formation, Montana, USA) [Elektronische Daten] [Richard Lund, Emily Greenfest-Allen, Eileen Grogan] The 323 million year old Bear Gulch Lens is recognized for the preservational quality and diversity of its fauna. Here we capitalize on these factors and 45years of field data collection to test and evaluate the relationship between functional morphology and habitat in this Upper Mississippian marine fish fauna. The fishes are members of the Coelacanthiformes, Actinopterygii, Chondrichthyes, and Acanthodii. Fish were scored for 12 size-free morphological characters of functional significance that reflect habitat preference and resource utilization among extant fishes. Based on similarities in eco-coding, taxa are grouped into 13 ecomorphotypes, only one of which contained both actinopterygian and chondrichthyan taxa. Chondrichthyans are partitioned into nine highly diverse ecomorphotypes, spanning a spectrum of grossly different feeding, propulsive, and sexually dimorphic adaptations. These ecomorphotypes exhibit strong distributional trends relative to bay habitats. In contrast, Bear Gulch actinopterygians display few ecologically sensitive morphological deviations from a fusiform body plan and generalized feeding mechanism at this scale of analysis. The relative distribution of actinopterygian ecomorphotypes varies little across the bay habitats. The coelacanth ecomorphotype is restricted to lower bay habitats. These analyses lend new insight into the adaptive radiations of Chondrichthyes and Osteichthyes subsequent to the Upper Devonian mass extinctions. Springer Science+Business Media Dordrecht, 2014 Ecomorphology nationallicence Chondrichthyes nationallicence Actinopterygii nationallicence Coelacanthiformes nationallicence Adaptive radiation nationallicence Paleoecology nationallicence Paleozoic era nationallicence Lund Richard Department of Biology, Saint Joseph's University, 5600 City Avenue, 19131, Philadelphia, PA, USA aut Greenfest-Allen Emily Computational Biology and Informatics Laboratory Institute for Biomedical Informatics, University of Pennsylvania, 423 Guardian Drive, 19104, Philadelphia, PA, USA aut Grogan Eileen Department of Biology, Saint Joseph's University, 5600 City Avenue, 19131, Philadelphia, PA, USA aut Environmental Biology of Fishes Springer Netherlands 98/2(2015-02-01), 739-754 0378-1909 98:2<739 2015 98 10641 https://doi.org/10.1007/s10641-014-0308-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-014-0308-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lund Richard Department of Biology, Saint Joseph's University, 5600 City Avenue, 19131, Philadelphia, PA, USA aut NATIONALLICENCE 700 1- Greenfest-Allen Emily Computational Biology and Informatics Laboratory Institute for Biomedical Informatics, University of Pennsylvania, 423 Guardian Drive, 19104, Philadelphia, PA, USA aut NATIONALLICENCE 700 1- Grogan Eileen Department of Biology, Saint Joseph's University, 5600 City Avenue, 19131, Philadelphia, PA, USA aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/2(2015-02-01), 739-754 0378-1909 98:2<739 2015 98 10641