Early development in Dendraster These micrographs illustrate interesting features of cleavage stages in the local sand dollar, Dendraster excentricus. Images belong to George von Dassow.
23 Diversity III: Invertebrates
Jun 15, 2015
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Early development in DendrasterThese micrographs illustrate interesting features of cleavage stages in the local sand dollar, Dendraster excentricus. Images belong to George von Dassow.
Animals: Part I
http://tolweb.org/tree/phylogeny.html
Phylum: Porifera
Class: Hexactinellida
Phylum: Cnideria
Class: Scyphozoa
Phylum: Platyhelminthes
Class: Turbellaria
MOLLUSCA
http://www.ted.com/talks/david_gallo_shows_underwater_astonishments.html
http://www.youtube.com/watch?v=1pJPnZFSy5o
Annelida
http://www.youtube.com/watch?v=fWIvV9QlNow
Phylum Arthropoda:
Contains 75-80% of all animal species.
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Merostomata
Class: Arachnida
Order: Aranea
Order: Scorpiones
Order: Opiliones
Order: Acari
Subphylum: Myriapoda Class: Chilopoda
Class: Diplopoda
Subphylum: Crustacea Class: Maxillopoda
Subclass: Cirripedia
Class: Malacostraca
Subclass: Decapoda
Subphylum: Hexapoda Class: Insecta
Order: Key ‘em out!
Arthropoda:
Chelicerata
Arthropoda: Miriapoda
Arthropoda:
Crustacea
http://www.youtube.com/watch?v=Nd7o6ytz_LM
Arthropoda: Hexapoda
Echinodermata
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