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Præanaspides præcursor, One of the Fossil Syncarida, from the Coal-measures of Derbyshire

Præanaspides præcursor, One of the Fossil Syncarida, from the Coal-measures of Derbyshire.jpg Larval Stages of the Common Rock Barnacle (Balanus balanoidesThumbnailsThe Tasmanian 'Mountain Shrimp'Larval Stages of the Common Rock Barnacle (Balanus balanoidesThumbnailsThe Tasmanian 'Mountain Shrimp'Larval Stages of the Common Rock Barnacle (Balanus balanoidesThumbnailsThe Tasmanian 'Mountain Shrimp'Larval Stages of the Common Rock Barnacle (Balanus balanoidesThumbnailsThe Tasmanian 'Mountain Shrimp'Larval Stages of the Common Rock Barnacle (Balanus balanoidesThumbnailsThe Tasmanian 'Mountain Shrimp'Larval Stages of the Common Rock Barnacle (Balanus balanoidesThumbnailsThe Tasmanian 'Mountain Shrimp'Larval Stages of the Common Rock Barnacle (Balanus balanoidesThumbnailsThe Tasmanian 'Mountain Shrimp'