Amarjola, Rajmahal Hills (Jurassic of India)
Also known as Amirjola
Where: Jharkhand, India (24.5° N, 87.6° E)
• Paleocoordinates: 46.2° S, 58.3° E (Wright 2013)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Rajmahal Formation, Late/Upper Jurassic (161.5 - 145.0 Ma)
• "Rajmahal Stage" (Lakhanpal et al. 1976)
• group of beds-level stratigraphic resolution
Environment/lithology: fluvial; lithology not reported
Size class: macrofossils
Primary reference: R. N. Lakhanpal, H. K. Maheshwari, and N. Awasthi. 1976. A Catalogue of Indian Fossil Plants. 1-318 [B. Allen/B. Allen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 224719: authorized by Bethany Allen, entered by Bethany Allen on 31.03.2022
Creative Commons license: CC0 (CC0)
Taxonomic list
Show authors, comments, and common names
| Selaginellites gracilis | |
|
Selaginellites gracilis Oldham and Morris 1863 | |
| Cycadopsida | |
Thinnfeldia cf. lancifolia, Thinnfeldia sp., Thinnfeldia amarjolensis n. sp., Thinnfeldia cf. feistmanteli
Thinnfeldia cf. lancifolia cycads
Thinnfeldia sp. Ettingshausen 1852 cycads
Thinnfeldia amarjolensis n. sp. Sharma et al. 1971 cycads
Thinnfeldia cf. feistmanteli Johnston 1895 cycads | |
Cycadinorachis omegoides n. gen. n. sp., "Stangerites ensis" = Taeniopteris ensis, Fascisvarioxylon mehtae n. gen. n. sp., "Sewardioxylon sahnii n. gen. n. sp." = Fascisvarioxylon sahnii, "Anomozamites fissus" = Nilssonia fissa, Bucklandia sp., Bucklandia guptae n. sp., Bucklandia sahnii n. sp., Bucklandia dichotoma
Cycadinorachis omegoides n. gen. n. sp. Sharma 1969 cycads
"Stangerites ensis" = Taeniopteris ensis Oldham 1863 cycads
Fascisvarioxylon mehtae n. gen. n. sp. Jain 1964 cycads
"Sewardioxylon sahnii n. gen. n. sp." = Fascisvarioxylon sahnii Gupta 1971 cycads
"Anomozamites fissus" = Nilssonia fissa Feistmantel 1879 cycads
Bucklandia sp. Sternberg 1825 cycads
Bucklandia guptae n. sp. Sharma 1967 cycads
Bucklandia sahnii n. sp. Bose 1953 cycads
Bucklandia dichotoma Sharma 1969 cycads | |
| Taxoxylon | |
Taxoxylon indicum n. sp.
Taxoxylon indicum n. sp. Bharadwaj 1952 | |
| Ginkgoopsida | |
|
Pentoxylon sahnii Srivastava 1944
Nipaniophyllum raoi Sahni 1948 | |
| Polypodiopsida | |
"Cladophlebis indica" = Todites indicus, Osmundacaulis indica n. sp., "Osmundites rajmahalense n. sp." = Osmundacaulis rajmahalense, Osmundacaulis estipulare n. sp., Osmundacaulis amarjolense n. sp., Osmundacaulis guptai n. sp.
"Cladophlebis indica" = Todites indicus Oldham and Morris 1862
Osmundacaulis indica n. sp. Sharma 1973
"Osmundites rajmahalense n. sp." = Osmundacaulis rajmahalense Gupta 1970
Osmundacaulis estipulare n. sp. Sharma et al. 1979
Osmundacaulis amarjolense n. sp. Sharma 1973
Osmundacaulis guptai n. sp. Sharma 1973 | |
| Pteropsida | |
|
Pecopteris sp. Brongniart 1822 | |
| Equisetopsida | |
Araucariaceae indet., Dadoxylon jurassicum n. sp., cf. Brachyphyllum sp., Brachyphyllum spiroxylum n. sp.
Dadoxylon jurassicum n. sp. Bharadwaj 1953
Brachyphyllum spiroxylum n. sp. Bose 1952 | |
| Sphenopteridae | |
|
Sphenopteris sp. Sternberg 1825 | |
| Bennettitales | |
|
Bennettitales indet. Bessey 1910 | |
"Homoxylon rajmahalense" = Sahnioxylon rajmahalense, Anomozamites sp., Anomozamites amarjolense n. sp., Purioxylon jurassica n. gen. n. sp., Ptilophyllum sahnii n. sp., Ptilophyllum sparsifolium n. sp., Ptilophyllum amarjolense n. sp., Ptilophyllum guptae n. sp., "Cycadeoidea dactylota n. sp." = Amarjolia dactylota, "Osmundites sp." = Pterophyllum, Pterophyllum rajmahalense, "Nilssonia sahnii" = Pterophyllum guptai, Williamsonia sp., Williamsonia scotica, Williamsonia guptae n. sp., Williamsonia harrisiana n. sp., Williamsonia amarjolense n. sp., Williamsonia sewardiana n. sp., Dictyozamites falcatus, Guptioxylon endocentrica n. sp., Guptioxylon amarjolense n. gen. n. sp.
"Homoxylon rajmahalense" = Sahnioxylon rajmahalense Sahni 1932
Anomozamites sp. Schimper 1870
Anomozamites amarjolense n. sp. Sharma et al. 1971
Purioxylon jurassica n. gen. n. sp. Sharma 1972
Ptilophyllum sahnii n. sp. Gupta and Sharma 1968
Ptilophyllum sparsifolium n. sp. Sharma 1967
Ptilophyllum amarjolense n. sp. Bose 1953
Ptilophyllum guptae n. sp. Sharma 1967
"Cycadeoidea dactylota n. sp." = Amarjolia dactylota Bose 1966
"Osmundites sp." = Pterophyllum Brongniart 1828
Pterophyllum rajmahalense Morris 1863
"Nilssonia sahnii" = Pterophyllum guptai Bose and Banerji 1981
Williamsonia sp. Carruthers 1870
Williamsonia guptae n. sp. Sharma 1968
Williamsonia harrisiana n. sp. Bose 1968
Williamsonia amarjolense n. sp. Sharma 1968
Williamsonia sewardiana n. sp. Sahni 1932
Dictyozamites falcatus Morris 1863
Guptioxylon endocentrica n. sp. Sharma 1972
Guptioxylon amarjolense n. gen. n. sp. Sharma 1969 | |
Coniferocaulon latisulcatum n. sp., Coniferocaulon amarjolense n. sp.
Coniferocaulon latisulcatum n. sp. Sah 1959
Coniferocaulon amarjolense n. sp. Sah 1958 | |
Mesembrioxylon indicum n. sp., Mesembrioxylon rajmahalense n. sp.
Mesembrioxylon indicum n. sp. Bharadwaj 1953 podocarp
Mesembrioxylon rajmahalense n. sp. Jain 1965 podocarp | |
|
Taxodioxylon sp. Hartig 1848 cypress
Cupressinoxylon (Taxodioxylon) rajmahalense n. sp. Bharadwaj 1953 cypress | |