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Dr. Bret Kuss Biology

Home > Comparative Anatomy > Comparative Anatomy Introduction > Trouble with taxonomy

Trouble with taxonomy

Misrepresentation of True Phylogeny

Arbitrary Assignment of Groups

Hierarchial Assignments Out of Sequence

Inconsistant Standards

Problems with the Species Concept

Integumentary Study Topics

  • Embryonic origins of the skin
  • Human skin layers
  • Human epidermal layers
  • Human epidermal cell types
  • Human structures of epidermal origin
  • Human hair
  • Human nails
  • Human skin glands
  • Human basement membrane
  • Human dermis
  • Human hypodermis
  • Human skin sensory receptors
  • Types of vertebrate scales
  • Dermal scales
  • Epidermal scales
  • Types of horns and antlers
  • Skin pigmentation
  • Phylogenetic trends
  • Taxonomic review of chordate integument
  • Integumentary System sample questions

Cranial Skeleton Study Topics

  • Cranial skeleton
  • Neurocranial division
  • Dermatocranial division
  • Splanchnocranial division
  • Sphenoid as a composite bone
  • Temporal as a composite bone
  • Occipital as a composite bone
  • Lamprey head skeleton
  • Shark and Ratfish head skeleton
  • Head skeleton of bony fishes
  • Neurocranial ossification in bony fishes
  • Dermal Bones and Scales in bony fishes
  • Dermal bones and the fish/amphibian link
  • Anapsides, diapsids, synapsids and others
  • Diapsids variations
  • Reduced dermal bone
  • Secondary palate formation
  • Hyomandibular expression
  • Quadrate and articular expression
  • Occipital condyle number
  • Cranial Skeleton Sample Questions