Image of Caenis lactea (Burmeister 1839)

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Squaregill Mayflies

Caenoidea

Body symmetry

Namigai et al 2014
bilaterally symmetric
URI: http://purl.obolibrary.org/obo/PATO_0001324

Definition: being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves

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cellularity

Cellularity and growth form
multicellular
URI: http://purl.obolibrary.org/obo/PATO_0001993

Definition: A cellularity quality inhering in a bearer by virtue of the bearers consisting of more than one cell. [ PATOC:GVG ]

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developmental mode

Insect Development
prometabolous
URI: http://eol.org/schema/terms/prometabolous

Definition: A distinct form of hemimetabolous development which includes a winged pre-adult life stage.

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extinction status

Paleobiology Database
extant
URI: http://eol.org/schema/terms/extant

Definition: This taxon is still in existence, as opposed to extinct.

Attribution: http://en.wikipedia.org/wiki/Extant_taxon

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feeding structure

Arthropod Trophic Ecology Data
biting-chewing mouthparts
URI: https://eol.org/schema/terms/bitingChewing

Definition: Mouthparts adapted to cutting and grinding food particles using opposable mandibles with a mola (grinding surface).

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(nymph)

first appearance

Paleobiology Database

56 million years ago

(max)
Paleobiology Database
eocene epoch
URI: http://resource.geosciml.org/classifier/ics/ischart/Eocene

Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

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last appearance

Paleobiology Database
burdigalian age
URI: http://resource.geosciml.org/classifier/ics/ischart/Burdigalian

Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

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Paleobiology Database

15.97 million years ago

(min)

latitude

OBIS environmental data records

18.975 degrees

(min)
OBIS environmental data records

46.2667 degrees

(max)

longitude

OBIS environmental data records

-97.35 degrees

(min)
OBIS environmental data records

72.8258 degrees

(max)

number of fossil occurrences

Paleobiology Database

3

skeleton contains

Paleobiology Database
chitin
URI: http://purl.obolibrary.org/obo/CHEBI_17029

Definition: An aminoglycan consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues.

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water depth

OBIS environmental data records

10 m

(max)
OBIS environmental data records

0.5 m

(min)

wing morphology

Insect Wings
macropterous
URI: http://eol.org/schema/terms/macropterous

Definition: The presence of fully functional wings.

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(adult)