Asaphus kowalewskii


Kingdom
Animalia
Phylum
Arthropoda
Class
Trilobita
Order
Asaphida
Suborder
Asaphina
Superfamily
Asaphoidea
Family
Asaphidae
Binomial Name
Asaphus kowalewskii
Formation
Asery Level, Vilpovitsy quarry
Locale
St Petersburg region, Russia
Age
Middle Ordovician
Restoration
Minor restoration along repaired fractures in shell.
Notes
With its long narrow eye stalks this is the most famous of the Asaphus triliobites. But it didn't come out of nowhere. From the plain A. lepidurus to the frog eyed A. cornutus to A. punctatus with its stubby medium length eye stalks to A. intermedius with its longer eye stalks, as well as other stalk eyed Asaphus trilobites not in my collection, this trilobite had plenty of precursors. In all cases the point of having the eyes on stalks was to allow the trilobite to stay buried in the mud while being able to see prey coming close enough to grab, and no doubt,to see potential predators to avoid as well.

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Asaphus kowalewskii


Picture of Asaphus kowalewskii
Picture of Asaphus kowalewskii

Asaphus kowalewskii dorsolateral view


Picture of Asaphus kowalewskii dorsolateral view
Picture of Asaphus kowalewskii dorsolateral view

Asaphus kowalewskii front view


Picture of Asaphus kowalewskii front view
Picture of Asaphus kowalewskii front view