Athena Review Image Archive ™
Captorhinus magnus skull
Skull of Captorhinus magnus with labelled bones (after Reisz et al. 2011)
Captorhinus magnus,
a member of the Captorhinidae family, dates from the Late
Pennsylvanian and Early Permian periods. Captorhinus magnus was
identified from the Richards Spur locality in Oklahoma, a site that
also produced the remains of C. aguti.
Fossils of C. magnus are found mainly in deeper strata,
suggesting igts replacement by the smaller C. aguti during the Early
Permian.
Captorhinus magnus averaged about twice as large as C. aguti. Another important difference between the two species is that the teeth of C. magnus are arranged in a single row while C. aguti
has multiple rows. There are also developmental differences in the
femur. Otherwise, except for size the two species are virtually
identical in form.
Reference:
Reisz, Robert R.; Jin Liu, Jin-Ling Li, and Johannes Muller 2011
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