Species

Heckerocrinus laevis (Hecker, 1938)

Synonymy list

1938 Bockia laevis n. sp — Hecker , pp. 424

1940 Bockia laevis n. sp — Hecker , pp. 49, fig. VII1-3

1989 Bockia laevis — Kõrts , pp. 34, fig. 1-3

2012 Heckerocrinus (Bockia) laevis — Doweld , pp. 457-458

Selection of related publications

Kõrts, A. 1989. Brachiolar plates of Bockia (Eocrinoidea) from the Middle Ordovician of Estonia and Leningrad Region. Fossil and Recent Echinoderm researches, pp. 34-37. Academy of Sciences of the Estonian SSR Institute of Geology.

Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346. Valgus.

Hecker, R. F. 1940. Nižnesilurijskie i devonskie iglokožie. Carpoidea, Eocrinoidea i Ophiocistia nižnego silura Leningradskoj oblasti i Èstonii. Transactions of the Paleontological Institute (PIN) 9, 4, 5-82.

Hecker, R. F. 1938. New data on Rhipidocystis Jkl (Oder Digitata n. o., class Carpoidea Jkl) and on a new Genus Bockia (subclass Eocrinoidea Jkl, class Crinoidea Mill.) from the Ordovician of Leningrad province, USSR, and Estonia. Doklady Akademii Nauk SSSR 19, 5, 421-425.

Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Echinodermata
Subphylum	Blastozoa
Class	Eocrinoidea
Order	Trachelocrinida
Family	Heckerocrinidae
Genus	Heckerocrinus
Species	cucumis
	grava
	heintzi
	laevis
	mirabilis
	neglecta
	skulptus

References based on distribution

Hecker, 1938а Tatruse outcrop Idavere Substage
Kõrts, 1989 Vinni T-112 borehole 65.05 - 71.7 Kukruse Stage
Kõrts, 1989 Evasu 525 borehole 51.6 - 60.9 Idavere Substage
Kõrts, 1989 Aluvere quarry Idavere Substage
Kõrts, 1989 Nikolajevskoye 3 borehole, Leningrad Oblast 148 - 178 Kukruse Stage
Kõrts, 1989 Kohtla opencast Kukruse Stage
Kõrts, 1989 Krasnye Gory 20 borehole, Leningrad Oblast 141.5 -
Kõrts, 1989 Yashchera 8 borehole 165.5 -
Kõrts, 1989 Krasnye Gory 6 borehole, Leningrad Oblast 178.5 -
Kõrts, 1989 Osmino 126 borehole, Leningrad Oblast 65.95 - 66.83