Welcome to the Brachiopod subsite on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Punctatrypa
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Atrypida
Suborder:
Atrypidina
Superfamily:
Punctatrypoidea
Family:
Punctatrypidae
Subfamily:
Punctatrypinae
Formal Genus Name and Reference:
Punctatrypa HAVLÍČEK, 1953, p. 8
Type Species:
P. nalivkini, OD
Images
(Click to enlarge in a new window)
Fig. 972, 2a-g. * P. nalivkini, Emsian, Czech Republic, a-d, dorsal, ventral, posterior, anterior views, x3.5, e, interior of ventral valve, x3.7 (Havliček, 1987a), f, SEM view of ventral valve interior, mathbfX2 5 . 5 (new), g, external view of shell with fenestrae, x30 (Wang, Copper, & Rong, 1983).
Synonyms
Geographic Distribution
Eurasia, North America
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (middle Lochkovian)
Beginning International Stage:
Lochkovian
Fraction Up In Beginning Stage:
40
Beginning Date:
416.36
Ending Stage in Treatise Usage:
Middle Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Small, elongate to rounded, biconvex, non-carinate, narrow hinge, protruding beak, small orthocline area, apical foramen flanked by triangular deltidial plates, finely ribbed, short, imbricate growth lamellae, closely spaced along commissure, single, vertical fenestra on each rib crest, weak, small dorsal sulcus posteriorly, rectimarginate commissure, solid, strong, short teeth, lacking dental cavities, thick hinge plate, narrow cardinal pit, large inner socket ridges, short crura, spiralia, jugal processes undescribed. [Distinguished by small, rounded, biconvex shell, evenly developed, fine ribs.]
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Atrypida
Suborder:
Atrypidina
Superfamily:
Punctatrypoidea
Family:
Punctatrypidae
Subfamily:
Punctatrypinae
Formal Genus Name and Reference:
Punctatrypa HAVLÍČEK, 1953, p. 8
Type Species:
P. nalivkini, OD
Images
(Click to enlarge in a new window)
Fig. 972, 2a-g. * P. nalivkini, Emsian, Czech Republic, a-d, dorsal, ventral, posterior, anterior views, x3.5, e, interior of ventral valve, x3.7 (Havliček, 1987a), f, SEM view of ventral valve interior, mathbfX2 5 . 5 (new), g, external view of shell with fenestrae, x30 (Wang, Copper, & Rong, 1983).
Synonyms
Geographic Distribution
Eurasia, North America
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (middle Lochkovian)
Beginning International Stage:
Lochkovian
Fraction Up In Beginning Stage:
40
Beginning Date:
416.36
Ending Stage in Treatise Usage:
Middle Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Small, elongate to rounded, biconvex, non-carinate, narrow hinge, protruding beak, small orthocline area, apical foramen flanked by triangular deltidial plates, finely ribbed, short, imbricate growth lamellae, closely spaced along commissure, single, vertical fenestra on each rib crest, weak, small dorsal sulcus posteriorly, rectimarginate commissure, solid, strong, short teeth, lacking dental cavities, thick hinge plate, narrow cardinal pit, large inner socket ridges, short crura, spiralia, jugal processes undescribed. [Distinguished by small, rounded, biconvex shell, evenly developed, fine ribs.]