Treatise on invertebrate paleontology, Volume 1Geological Society of America, 1967 - Science |
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Common terms and phrases
aboral ambulacra ambulacral grooves ambulacrum anal pyramid arms arranged Asteroblastidae asteroids attached Barrande basal Bassler Bather blastoids brachiolaria brachiole facets branches carpoids Caryocrinites Caryocystitida Cheirocrinus circlet classes coelom column covering plates Crinoidea crinoids Crinozoa cystis Cystoblastus Cystoidea cystoids derms Devonian diplopores Diploporita distal Early echino echinoderms echinoids Echinosphaerites Eichwald elongate Eocrinoidea eocrinoids eorreet epitheca family-group flooring plates Foerste fossil genera genus Glyptocystitida Glyptosphaeritida gonopore groups Haeckel Hemicosmitida holothuroids hydrocoel hydropore interambulacral interray Jaekel Jaekel 69 Kesling known L.Ord larva M.Ord madreporite Middle Ordovician mouth nomen numerous occur oids ophiuroids oral region Order paracrinoids pectinirhombs Pelmatozoa pelmatozoan periproct peristome pinnules plate diagram pore canals pore rhombs posterior radial Regnell Rhombifera ridges side Silurian slits specimens Sphaeronitidae Stage structure superfamily suture symmetry taxa taxonomic Termier text fig theca Theca ovate thecal plates thecal pores tion Treatise tube feet type species U.Ord