Hexapodes

Hexapoda

Body symmetry

• Namigai et al 2014: symétrique bilatéralement

cellularity

• Cellularity and growth form: multicellular

described accepted species

• Appeltans et al: 2037

extinction status

• Paleobiology Database: extant

first appearance

• Paleobiology Database: 410.8 il y a un million d’années (max)
• Paleobiology Database: âge pragien

known marine species

• Appeltans et al: 2037

last appearance

• Paleobiology Database: ère cénozoïque

number of fossil occurrences

• Paleobiology Database: 49899

percent of marine species currently described

• Appeltans et al: 97 (max)
• Appeltans et al: 93 (minimum)

percent synonyms among marine species

• Appeltans et al: 15

total species (expert opinion)

• Appeltans et al: 2197 (max)
• Appeltans et al: 2097 (minimum)

total unknown marine species

• Appeltans et al: 160 (max)
• Appeltans et al: 60 (minimum)

total unknown species (statistical model)

• Appeltans et al: 110 (minimum)
• Appeltans et al: 250 (max)

type specimen repository

• iDigBio type specimen records: peabody museum of natural history (ypm)

undescribed marine species present in museum collections

• Appeltans et al: 60 (max)
• Appeltans et al: 30 (minimum)

undiscovered marine morphospecies

• Appeltans et al: 30 (minimum)
• Appeltans et al: 100 (max)

visual system

• Bitsch 2005: yeux composites
• Bitsch 2005: ocelles