Bibliography and Index of the Sirenia and Desmostylia  

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"Vermeij, Geerat J."

x
 
 Vermeij, Geerat J. (detail)
   
1993
Biogeography of recently extinct marine species: implications for conservation.
Conserv. Biol. 7(2): 391-397. 1 tab. June 1993.
–Mentions Hydrodamalis gigas as an example of a marine species that became extinct despite having an initially large range (392-394).
 
D
 Pyenson, Nicholas D.; Vermeij, Geerat J. (detail)
   
2016
The rise of ocean giants: maximum body size in Cenozoic marine mammals as an indicator for productivity in the Pacific and Atlantic Oceans.
Biol. Lett. 12(7): 4 pp. 1 tab. 1 fig. + online supplemental material. https://doi.org/10.1098/rsbl.2016.0186 July 31, 2016; publ. online July 1, 2016.
–ABSTRACT: Large consumers have ecological influence disproportionate to their abundance, although this influence in food webs depends directly on productivity. Evolutionary patterns at geologic timescales inform expectations about the relationship between consumers and productivity, but it is very difficult to track productivity through time with direct, quantitative measures. Based on previous work that used the maximum body size of Cenozoic marine invertebrate assemblages as a proxy for benthic productivity, we investigated how the maximum body size of Cenozoic marine mammals, in two feeding guilds, evolved over comparable temporal and geographical scales. First, maximal size in marine herbivores remains mostly stable and occupied by two different groups (desmostylians and sirenians) over separate timeframes in the North Pacific Ocean, while sirenians exclusively dominated this ecological mode in the North Atlantic. Second, mysticete whales, which are the largest Cenozoic consumers in the filter-feeding guild, remained in the same size range until a Mio-Pliocene onset of cetacean gigantism. Both vertebrate guilds achieved very large size only recently, suggesting that different trophic mechanisms promoting gigantism in the oceans have operated in the Cenozoic than in previous eras.
Daryl P. Domning, Research Associate, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, and Laboratory of Evolutionary Biology, Department of Anatomy, College of Medicine, Howard University, Washington, D.C. 20059.
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