10.5061/DRYAD.6K62P
Bauer, Jennifer E.
University of Tennessee at Knoxville
Sumrall, Colin D.
University of Tennessee at Knoxville
Waters, Johnny A.
Appalachian State University
Data from: Hydrospire morphology and implications for blastoid phylogeny
Dryad
dataset
2016
Hydrospires
Blastoidea
Diploblastus
Ellipticoblastus
Echinodermata
Deltoblastus
Cryptoblastus
Respiratory structures
Monoschizoblastus
Pentremites
2016-12-12T15:50:54Z
2016-12-12T15:50:54Z
en
https://doi.org/10.1017/jpa.2017.2
4463966081 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The external expression of hydrospires in blastoids has provided a basis
for major and minor group classification in the clade for over a century.
Unfortunately, the complete anatomy of the hydrospires has never been
comprehensively studied. This study examined and described the internal
hydrospires of six spiraculate species by digitally extracting hydrospire
data from a legacy data set of serial acetate peels. Although only six
models have been currently generated, hydrospire morphology is variable
both within and between previously described spiraculate families.
Hydrospires were found to possess novel characters that were incorporated
into a phylogenetic analysis of the six digitally modeled species and
several related species. The addition of internal morphology into the
phylogenetic analysis provides further resolution between groupings of
blastoids.
Bauer_SupplementalData1Supplemental Data 1. Brief character definitions
and character states outlined. Numbers in first column refer to numbers
utilized in the character matrix found in Supplemental Data 2. Internal
character data denoted by an asterisk.Bauer_SupplementalData2Supplemental
Data 2. Character matrix for the anatomically modeled species and several
related taxa. Character number refer to the list of characters found in
Supplemental Data 1. Outgroup species is denoted by an
asterisk.Bauer_SupplementalData3Supplemental Data 3. Raw scanned peel data
that were used in the reconstruction process for Cryptoblastus
melo.Bauer_SupplementalData4Supplemental Data 4. Raw scanned peel data
that were used in the reconstruction process for Deltoblastus
permicus.Bauer_SupplementalData5Supplemental Data 5. Raw scanned peel data
that were used in the reconstruction process for Diploblastus
glaber.Bauer_SupplementalData6Supplemental Data 6. Raw scanned peel data
that were used in the reconstruction process for Ellipicoblastus
elliptica.Bauer_SupplementalData7Supplemental Data 7. Raw scanned peel
data that were used in the reconstruction process for Monoschizoblastus
rofei.Bauer_SupplementalData8Supplemental Data 8. Raw scanned peel data
that were used in the reconstruction process for Pentremites godoni.