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Examples
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And I find that particularly interesting, because it’s my opinion that Hydrurga is one of the most ‘disturbing’ looking of all mammals: it’s a chunky mother of a seal – thickset and quasi-reptilian, with a theropod-like jaw line and robust skull demarcated from its neck.
Archive 2006-02-01 Darren Naish 2006
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Ross seal (Omimatophoca rossii '); leopard seal (Hydrurga leptonyx);
Antarctic Peninsula 2009
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Winter, non-breeding population of Leopard seal Hydrurga leptonyx is estimated to be at around 1,000 individuals.
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Hookers sea lion (Phocarctos hookeri) and leopard seal (Hydrurga leptonyx) visit each winter and spring.
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If Acrophoca is a member of this group, as Muizon (and Walsh & Naish) concluded, then we should be thinking of living lobodontins, and specifically Hydrurga, as the closest extant models.
Archive 2006-02-01 Darren Naish 2006
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This applies particularly for some otariids and for lobodontins like Hydrurga.
Archive 2006-02-01 Darren Naish 2006
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I would imagine Acrophoca as a paradoxical combination of these traits: quasi-reptilian and Hydrurga-like on one hand, but also longer-skulled, longer-necked and overall more gracile.
Archive 2006-02-01 Darren Naish 2006
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Six seal species are native to Antarctica: crabeater seal (Lobodon carcinophagus), Ross seal (Omimatophoca rossii), leopard seal (Hydrurga leptonyx), Weddell seal (Leptonychotes weddellii '), southern elephant seal (Mirounga leonina), and southern fur seal (Arctocephalus gazella).
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Muizon (1981) regarded Acrophoca as a lobodontin: that is, a member of the group that includes Hydrurga (the leopard seal), Ommatophoca (Ross’ seal) and Lobodon (the crabeater seal), and specifically as the sister-taxon to Hydrurga.
Archive 2006-02-01 Darren Naish 2006
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