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Saetograptus
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Neograptina
Family:
Monograptidae
Formal Genus Name and Reference:
Saetograptus PŘIBYL, 1943, p. 11
Type Species:
* Graptolithus chimaera, BARRANDE, 1850, p. 52, OD
Images
(Click to enlarge in a new window)
Fig. 304, 10a-b. * S. chimaera (Barrande), 10a, holotype, NMP L19973 (new, drawing by P. Štorch, 2021), 10b, chemically isolated specimen (Přibyl, 1943, fig. 1, redrawn from original illustration in Münch, 1938, pl. 5,1 a). Scale bars, 1 mm.
Synonyms
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Silurian, Ludlow (Gorstian, Neodiversograptus nilssoni Biozone)
Beginning International Stage:
Gorstian
Fraction Up In Beginning Stage:
0
Beginning Date:
426.74
Ending Stage in Treatise Usage:
Ludlow (Ludfordian, Saetograptus leintwardinensis Biozone)
Ending International Stage:
Ludfordian
Fraction Up In Ending Stage:
0
Ending Date:
422.73
Description
Straight or dorsally curved tubarium, sicula with variably developed dorsal apertural tongue, tubular thecae terminated by paired apertural spines developed on all or only proximal thecae, aperture of first theca has broad, triangular, spine-like lateral lappets, other thecal apertures have ventral notch and laterally to dorso-laterally situated spines separated by trough from ventral wall of next theca
References
Bouček, Bedřich, & Alois Přibyl. 1943. Über böhmische Monograpten aus der Untergattung Streptograptus Yin. Mitteilungen der Tschechischen Akademie der Wissenschaften 43:1-23.
Museum or Author Information
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Neograptina
Family:
Monograptidae
Formal Genus Name and Reference:
Saetograptus PŘIBYL, 1943, p. 11
Type Species:
* Graptolithus chimaera, BARRANDE, 1850, p. 52, OD
Images
(Click to enlarge in a new window)
Fig. 304, 10a-b. * S. chimaera (Barrande), 10a, holotype, NMP L19973 (new, drawing by P. Štorch, 2021), 10b, chemically isolated specimen (Přibyl, 1943, fig. 1, redrawn from original illustration in Münch, 1938, pl. 5,1 a). Scale bars, 1 mm.
Synonyms
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Silurian, Ludlow (Gorstian, Neodiversograptus nilssoni Biozone)
Beginning International Stage:
Gorstian
Fraction Up In Beginning Stage:
0
Beginning Date:
426.74
Ending Stage in Treatise Usage:
Ludlow (Ludfordian, Saetograptus leintwardinensis Biozone)
Ending International Stage:
Ludfordian
Fraction Up In Ending Stage:
0
Ending Date:
422.73
Description
Straight or dorsally curved tubarium, sicula with variably developed dorsal apertural tongue, tubular thecae terminated by paired apertural spines developed on all or only proximal thecae, aperture of first theca has broad, triangular, spine-like lateral lappets, other thecal apertures have ventral notch and laterally to dorso-laterally situated spines separated by trough from ventral wall of next theca
References
Bouček, Bedřich, & Alois Přibyl. 1943. Über böhmische Monograpten aus der Untergattung Streptograptus Yin. Mitteilungen der Tschechischen Akademie der Wissenschaften 43:1-23.