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Table 1 Abbreviations

From: Asteroidea (Echinodermata) from the Oxfordian (Late Jurassic) of Savigna, Départment du Jura, France

abtam

Abactinal transverse amb muscle

abiim

Abactinal interradial interoral muscle (oral)

aciim

Actinal interradial interoral muscle

actam

Actinal transverse amb muscle

ada1

Single distal amb–adamb articulation

ada1a

Distal adradial amb–adamb articulation

ada1b

Distal abradial amb–adamb articulation

ada2

Proximal adradial amb–adamb articulation

ada3

Proximal abradial adamb–amb or adamb–adamb articulation

adada

Adamb–adamb articulation

adadm

Interadambulacral muscle

adpm

Adamb prominence (on adamb)

adr

Adradial ossicles

artr

Articulation ridges on distal adamb of Plumaster

coh

Circumoral head

dadam

Distal amb–adamb muscle

dcoa

Distal circumoral articulation on oral

dcp

Distal circumoral process on circumoral

de

Dentition (orals, ambs, peds)

doda

Distal odontophore articulation (on oral, odontophore)

fs

Attachment of furrow spine

im

Inferomarginal

iioa

Interradial interoral articulation (on oral)

lia

Longitudinal interambulacral articulation

lim

Longitudinal interambulacral muscle

orada

Adambulacral articulation (on oral)

oradm

Oral adambulacral muscle

osp

Attachment of oral spine

padam

Proximal adamb–amb muscle

pb

Proximal blade (oral ossicle)

pcoa

Proximal oral–circumoral articulation

pcp

Proximal circumoral process (on circumoral)

pir

Primary interradial ossicle

poda

Proximal odontophore articulation (on oral and odontophore)

ra

Radial

rart

Radial articulation of proximal blade (on oral)

riom

Radial interoral muscle

rng

Ring nerve groove on oral

rvg

Ring vessel groove on oral

sm

Superomarginal ossicle

sas

Subadambulacral spine

sos

Attachment of suboral spine