Results 111 to 120 of about 12,118 (234)

Trilobite tridents demonstrate sexual combat at 400 Mya. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Gishlick AD, Fortey RA.
europepmc   +1 more source

Early large borings from a hardground of Floian-Dapingian age (Early and Middle Ordovician) in northeastern Estonia (Baltica)

open access: yesCarnets de Géologie, 2010
Large plug- or slightly amphora-shaped borings have been found in the hardground marking the boundary between Early and Middle Ordovician rocks in northeastern Estonia. These borings cut large bioclasts of the trilobite Megistaspis and cannot be assigned
Vinn Olev, Wilson Mark A.
doaj  

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