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Organics

Id Identification Type Name Description Distinguishing Features Tags
127 Invertebrate Bivalve
141 Invertebrate Bryozoa
161 Invertebrate Chitin
64 Invertebrate Foraminifera
83 Invertebrate Gastropod
75 Invertebrate Radiolarian
84 Invertebrate Sponge Transparent colorless. Moderately high relief. Isotropic. Sponge spicules (amorphous silica structural elements) are most often large (~0.1 to >1 mm), needle-like, gently curved, sometimes with a medial groove or tube. Ends may be pointed or rounded. Surface is frequently smooth and unornamented, but may be covered with prominent bumps. Distinguished from diatoms by size, lack of ornamentation, robustness/solidness. Marine forms may be more complex, tri- or tetraxial. Marine forms may less commonly be calcareous instead of siliceous. Acicular
Needle-like
Curved
Isotropic
Large
spicule
groove
bumpy