Assertion: cephalopod's shell | /r/HasProperty | lost
Facets:
value: during the fossilization process
type: TEMPORAL
value: except for the sepioidea
type: OTHER
value: in living forms
type: OTHER
Source sentences:
text: Shells that are "lost" may be lost by resorption of the calcium carbonate component.
text: In living forms, except for the Sepioidea, the shell is strongly degenerate or missing and the characters used consist of details of the soft parts: presence or absence of an eyelid, tentacles retractile or contractile or both, shape and size of fins, number of arms, number of sucker rows, presence or absence of teeth and hooks on arm and tentacular suckers, radular dentition, structure of funnel organ, spermatophores, details of the hectocotyles, number of gill lamellae, and the presence, patterns, and types of photophores.
text: The ancestral shell has been lost, with only an internal gladius, or pen, remaining.
text: The majority of ammonoid specimens, especially those of the Paleozoic era, are preserved only as internal molds; the outer shell (composed of aragonite) has been lost during the fossilization process.