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The study of the gross structure of biological entities, including organisms, tissues and cells.

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The Perplexing Trilobite: What is the Evidence Supporting The Hypothesis That They are Not C...

From a layman's perspective it seems compelling both from what is known of the physiology and morphology that it would make more sense to tentatively classify them as a early member of the order Isopoda … While it goes in depth into what is known or believed to be known about trilobite physiology and morphology, it never really explains WHY trilobites are no longer believed to be crustaceans. …
Jason R. Mick's user avatar