Welcome to the Forams subsite on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Astacolus
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Nodosariacea
Family:
Nodosariidae
Subfamily:
Nodosariinae
Formal Genus Name and Reference:
Astacolus de MONTFORT, 1808, *1305, p. 262
Type Species:
Astacolus crepidulatus de Montfort, 1808, =Nautilus crepidulus Fichtel & MOLL, 1798, *716, p. 64, OD
Images
(Click to enlarge in a new window)
Fig. 401,3. *A. crepidultls (FICHTEL & MOLL), Plio., Italy; 3a,b, side, face views, X33 (*2117).--FIG. 401,4. A. vaginulinaeformis (CUSHMAN & HANZAWA), Pleist., Ryukyu Is.; 4a,b, side, dorsal views, X33 (-504).--FIG. 401,5. A. spiralis (CUSHMAN & HANZAWA), Pleist., Ryukyu Is.; 5a,b, side, face views, X22 (*504). --Fig. 401,6. A. alexandrae (ZALESSKY), JUL, USSR; X73 (*2099). --Fig. 401,7. A. sapricolli ZALESSKY), JUL, USSR; X73 (*2099).
Synonyms
Geographic Distribution
Age Range
Beginning Stage in Treatise Usage:
Perm.
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test free, elongate, arcuate, compressed; chambers numerous, low, broad, added along slightly curved axis; sutures oblique, highest at outer margin, curved, straight or sinuate; aperture radiate, terminal, at peripheral angle.
References
Montfort, Denys de, 1808, Conchyliologie systématique et classification methodique des coquilles: v. 1, 1xxxvii+409 p.
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Nodosariacea
Family:
Nodosariidae
Subfamily:
Nodosariinae
Formal Genus Name and Reference:
Astacolus de MONTFORT, 1808, *1305, p. 262
Type Species:
Astacolus crepidulatus de Montfort, 1808, =Nautilus crepidulus Fichtel & MOLL, 1798, *716, p. 64, OD
Images
(Click to enlarge in a new window)
Fig. 401,3. *A. crepidultls (FICHTEL & MOLL), Plio., Italy; 3a,b, side, face views, X33 (*2117).--FIG. 401,4. A. vaginulinaeformis (CUSHMAN & HANZAWA), Pleist., Ryukyu Is.; 4a,b, side, dorsal views, X33 (-504).--FIG. 401,5. A. spiralis (CUSHMAN & HANZAWA), Pleist., Ryukyu Is.; 5a,b, side, face views, X22 (*504). --Fig. 401,6. A. alexandrae (ZALESSKY), JUL, USSR; X73 (*2099). --Fig. 401,7. A. sapricolli ZALESSKY), JUL, USSR; X73 (*2099).
Synonyms
Geographic Distribution
Age Range
Beginning Stage in Treatise Usage:
Perm.
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test free, elongate, arcuate, compressed; chambers numerous, low, broad, added along slightly curved axis; sutures oblique, highest at outer margin, curved, straight or sinuate; aperture radiate, terminal, at peripheral angle.
References
Montfort, Denys de, 1808, Conchyliologie systématique et classification methodique des coquilles: v. 1, 1xxxvii+409 p.