caa a22 4500 388017694 CHVBK 20180307124915.0 cr unu---uuuuu 161130e199805 xx s 000 0 eng 10.1017/S0022336000024161 doi S0022336000024161 pii (NATIONALLICENCE)cambridge-10.1017/S0022336000024161 Bryozoan growth habits: Classification and analysis [Elektronische Daten] [Steven J. Hageman, Philip E. Bock, Yvonne Bone, Brian Mcgowran] Bryozoans are an important part of the benthic marine fauna in a wide variety of modern environments and are found in rock forming abundance in a number of settings throughout much of the Phanerozoic. Bryozoologists and nonspecialists have grouped taxa into colonial growth forms (e.g., erect fenestrates or encrusting sheets), both to simplify analyses and because correlations exist between some colony growth forms and the environmental conditions in which the organism lived. These correlations allow for the possibility of paleoenvironmental analyses based on skeletons alone. Existing bryozoan colonial growth form classifications do not, however, fully exploit the ecological information present in colony form. A new scheme is proposed here (Analytical Bryozoan Growth Habit Classification), which provides a list of colony-level morphological characteristics for bryozoan growth habits. This differs from previous approaches to bryozoan growth form analysis in that it is a classification of growth habit characteristics rather than a classification of morphological groups as such. The classification is based on eleven character classes, which describe the orientation of the colony and its occupation of, and placement in space. The overall colony shape is described based on the arrangement of modules in colonial growth. This classification provides a common ground for systematic comparison of character states among varied bryozoan growth habits. This approach allows for the evaluation of correlations among observed morphological character states and specific environmental conditions in which they develop. In addition, these growth habit characters can be used to recognize, characterize, evaluate, and apply more traditional growth form groups in broader studies. Copyright © The Paleontological Society Hageman Steven J. Department of Geology, Field Museum of Natural History, Roosevelt Road at Lake Shore Drive, Chicago, Illinois 60605 aut Bock Philip E. Geology and Geological Engineering, Royal Melbourne Institute of Technology, Box 2476V, Melbourne, Victoria 3001, Australia aut Bone Yvonne Department of Geology and Geophysics, University of Adelaide, Adelaide, South Australia 5005, Australia aut Mcgowran Brian Department of Geology and Geophysics, University of Adelaide, Adelaide, South Australia 5005, Australia aut Journal of Paleontology Cambridge University Press 72/3(1998-05), 418-436 0022-3360 72:3<418 1998 72 JPA https://doi.org/10.1017/S0022336000024161 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022336000024161 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hageman Steven J. Department of Geology, Field Museum of Natural History, Roosevelt Road at Lake Shore Drive, Chicago, Illinois 60605 aut NATIONALLICENCE 700 1- Bock Philip E. Geology and Geological Engineering, Royal Melbourne Institute of Technology, Box 2476V, Melbourne, Victoria 3001, Australia aut NATIONALLICENCE 700 1- Bone Yvonne Department of Geology and Geophysics, University of Adelaide, Adelaide, South Australia 5005, Australia aut NATIONALLICENCE 700 1- Mcgowran Brian Department of Geology and Geophysics, University of Adelaide, Adelaide, South Australia 5005, Australia aut NATIONALLICENCE 773 0- Journal of Paleontology Cambridge University Press 72/3(1998-05), 418-436 0022-3360 72:3<418 1998 72 JPA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge