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Amoenirhynchia
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Rhynchotetradoidea
Family:
Prionorhynchiidae
Formal Genus Name and Reference:
Amoenirhynchia SIBLÍK, 1986, p. 23
Type Species:
Rhynchonella seydelii BITTNER, 1891, p. 56, OD
Images
(Click to enlarge in a new window)
Fig. 855, 2am. *A. seydelii (Bittner), Carnian, Slovakia, a-c, dorsal, lateral, anterior views, SNM Z 19428, x3, d-m, transverse serial sections, distances in mm from ventral umbo, 0.15, 0.45, 0.95, 1.55, 2.3, 3.8, 4.85, 6.0, 7.3, 8.7 (Siblík, 1986).
Synonyms
Geographic Distribution
Alps, Carpathians
Age Range
Beginning Stage in Treatise Usage:
Middle Triassic, Upper Triassic
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
Middle Triassic, Upper Triassic
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Small, triangular, moderately equibiconvex, costae low, rounded, developed only anteriorly, no distinct sulcus and fold, anterior commissure rectimarginate or incipiently uniplicate, beak suberect, ridges distinct, planareas well developed. Dental plates long, subparallel to ventrally convergent, pedicle collar absent, septum low, septalium short, present only posteriorly, hinge teeth without crenulation, crura raduliform to incipiently flared.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Rhynchotetradoidea
Family:
Prionorhynchiidae
Formal Genus Name and Reference:
Amoenirhynchia SIBLÍK, 1986, p. 23
Type Species:
Rhynchonella seydelii BITTNER, 1891, p. 56, OD
Images
(Click to enlarge in a new window)
Fig. 855, 2am. *A. seydelii (Bittner), Carnian, Slovakia, a-c, dorsal, lateral, anterior views, SNM Z 19428, x3, d-m, transverse serial sections, distances in mm from ventral umbo, 0.15, 0.45, 0.95, 1.55, 2.3, 3.8, 4.85, 6.0, 7.3, 8.7 (Siblík, 1986).
Synonyms
Geographic Distribution
Alps, Carpathians
Age Range
Beginning Stage in Treatise Usage:
Middle Triassic, Upper Triassic
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
Middle Triassic, Upper Triassic
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Small, triangular, moderately equibiconvex, costae low, rounded, developed only anteriorly, no distinct sulcus and fold, anterior commissure rectimarginate or incipiently uniplicate, beak suberect, ridges distinct, planareas well developed. Dental plates long, subparallel to ventrally convergent, pedicle collar absent, septum low, septalium short, present only posteriorly, hinge teeth without crenulation, crura raduliform to incipiently flared.