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・ Macrocoma meruensis
・ Macrocoma minutula
・ Macrocoma parvula
・ Macrocoma vanstraeleni
・ Macrocoma verschureni
・ Macrocoma voeltzkowi
・ Macrocosm (album)
・ Macrocosm and microcosm
・ Macrocossus
・ Macrocossus caducus
・ Macrocossus coelebs
・ Macrocossus grebennikovi
・ Macrocossus sidamo
・ Macrocossus toluminus
・ Macrocotyla glandulosa
Macrocranion
・ Macrocrystalline
・ Macroctopus
・ Macroctopus maorum
・ Macrocybe
・ Macrocybe spectabilis
・ Macrocybe titans
・ Macrocycle
・ Macrocyclic stereocontrol
・ Macrocyclidae
・ Macrocyclis
・ Macrocyclops albidus
・ Macrocydia
・ Macrocypraea
・ Macrocypraea cervinetta


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Macrocranion : ウィキペディア英語版
Macrocranion



''Macrocranion'' is a genus of extinct mammal from the Eocene epoch of Europe and North America. Exceptional fossils have has been found in the Messel Pit of Germany. ''Macrocranion'' species are often described as forest-floor predators, about the size of small squirrels but with longer limbs.
The genus is represented at the Messel Pit site by two species:
''M. tupaiodon'' had woolly fur with no spikes. Although possibly an omnivore, fossil remains indicate the specimen had eaten fish near the time of its death. This small animal was approximately fifteen cm in length, with long back legs capable of considerable speed.
The fossil ''M. tenerum'' is five cm long. The species also had long legs for rapid movement, but its fur included a spiky protection. The long legs, however, indicate the animal couldn't have effectively rolled up for defense. Fossilized stomach remains show that ''M. tenerums diet included ants, so it may have been an insectivore.
The oldest species are ''M. vandebroeki'' from the Paleocene-Eocene transition of Northern Europe and ''M. junnei'' from the Wasatchian (Early Eocene) of Wyoming.
==References==




抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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