石化した
aged
ancient
animal
background
black
brachiopod
brachiopoda
brachiopods
brown
carbon
clamshell
coast
devonian
examination
extinct
geology
ground
limestone
marine
mineral
mollusk
mud
old
paleontology
paleozoic
precious
prehistoric
preserve
quarry
record
remains
remnant
rock
sand
science
seashells
sedimentary
shell
shellfish
shells
snail
soft
spiral
stone
surface
texture
white
定額
Brachiopod fossil specimen for education. Brachiopods, phylum Brachiopoda, are a group of lophotrochozoan animals that have hard shells on the upper and lower surfaces.の素材 [FY31092018315]
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