scholarly journals Additional Middle Jurassic gastropods from Kachchh (western India) in the collections of the Banaras Hindu University (Varanasi, India)

2019 ◽  
Vol 36 ◽  
pp. 3-30
Author(s):  
János Szabó ◽  
Anand Kumar Jaitly
Keyword(s):  
New Taxa ◽  
Middle Jurassic ◽  
Western India

Twenty species, new for the faunas from diff erent Jurassic localities of Kachchh, western India are introduced in this paper. Most of these species can be treated by the open nomenclature but some new taxa can also be established on satisfactorily preserved specimens. Th e new taxa are Jumaramaria jumaraensis n. gen., n. sp., Solarioconulus kachchhensis n. sp., Chartronella belaensis n. sp., Planiturbo lerensis n. sp., Exelissa indiana n. sp., and Sulcoactaeon? haboensis n. sp. With 83 figures.

scholarly journals Magnetostratigraphy of the Middle Jurassic Sediments from Kachchh Basin, Western India

2016 ◽  
Vol 07 (03) ◽  
pp. 301-310 ◽  
Author(s):  
Venkateshwarlu Mamilla ◽  
Bindhyachal Pandey ◽  
Deo Brat Pathak ◽  
Papanna Guguloth ◽  
Jai Krishna
Keyword(s):  
Middle Jurassic ◽  
Western India ◽  
Kachchh Basin

Implications for the study of fossil Asteroidea (Echinodermata) of new genera and species from the Eocene of Florida

2009 ◽  
Vol 83 (4) ◽  
pp. 562-574 ◽  
Author(s):  
Daniel B. Blake ◽  
Roger W. Portell
Keyword(s):  
Family History ◽  
New Taxa ◽  
Middle Jurassic ◽  
Fossil Record ◽  
New Genera ◽  
Crown Group ◽  
Marine Communities ◽  
The Family ◽  
Ocala Limestone

Oyenaster oblidus, Ocalaster timucum, and Ocalaster seloyi are new genera and species of the family Goniasteridae (Asteroidea) described from the Eocene Ocala Limestone of Florida. Although the fossil record of asteroids is sketchy, goniasterids appear to have been important contributors to marine communities since at least the Middle Jurassic. Similarities between living goniasterids and their fossil precursors indicate that plesiomorphy and convergence have been important in family history, and as a result, taxonomic interpretation is challenging. Even partial fossil goniasterids are rare, forcing systematists to rely heavily on isolated marginal ossicles, although some authors have expressed the need for caution. Building around three new taxa, we suggest that broader approaches can aid systematic interpretation of all crown-group asteroids. We also suggest that the inevitably idiosyncratic interpretations of marginal-based systematics can be partially tested using blind evaluations.

On the Bathonian (Middle Jurassic) ammonites Micromphalites Buckman and Gracilisphinctes Buckman from Kachchh, Western India

1984 ◽  
Vol 121 (4) ◽  
pp. 319-321 ◽  
Author(s):  
A. K. Jaitly ◽  
C. S. P. Singh
Keyword(s):  
Middle Jurassic ◽  
Western India

AbstractSystematic descriptions of specimens collected from Pachchham ‘Island’, Kachchh, Western India, belonging to the genera Micromphalites Buckman and Gracilisphinctes Buckman are given. Their affinities with the different forms belonging to the above genera are discussed and described as Micromphalites aff. hourcqui Collignon and Gracilisphinctes cf. arkelli Collignon respectively. The distribution of these two genera in other regions is also briefly discussed.

Variability in Epistreptophyllum from the middle Jurassic of Kachchh, western India: An open question for the taxonomy of Mesozoic scleractinian corals

1997 ◽  
Vol 71 (4) ◽  
pp. 564-577 ◽  
Author(s):  
D. K. Pandey ◽  
B. Lathuiliere
Keyword(s):  
Middle Jurassic ◽  
Multivariate Analyses ◽  
Great Majority ◽  
Morphological Characters ◽  
Scleractinian Corals ◽  
Western India ◽  
Wide Range ◽  
Surface Ornamentation ◽  
Open Question ◽  
Range Of Variation

Epistreptophyllum cornutiformis Gregory, 1900, is the name assigned to a Middle Jurassic population of scleractinian corals from Kachchh, western India. Measurements of ten variables from 84 specimens of this population have been statistically examined by means of univariate and multivariate analyses. A wide range of variation in corallum shape, septal perforation, lateral septal surface ornamentation, nature of the endotheca, and that of the columella is observed. The great majority of specimens are solitary. The wide range of gradational variation observed in this population corresponds to and includes the morphological characters described for various scleractinian genera such as Protethmos Gregory, Metethmos Gregory, Frechia Gregory, and Epistreptophyllum Milaschewitsch. The assignment of these genera to this later senior synonym genus is supported by the description of a well-preserved topotype from Nattheim. The ornamentation of the septa in Epistreptophyllum is detailed and distances it from typical pennular corals.

Faunal associations of the Middle Jurassic ammonite genus Macrocephalites in Kachchh, western India

1987 ◽  
Vol 24 (8) ◽  
pp. 1570-1582 ◽  
Author(s):  
Jai Krishna ◽  
G. E. G. Westermann
Keyword(s):  
Middle Jurassic ◽  
Western India ◽  
Nominal Species ◽  
Dimorphic Species ◽  
Lower Callovian

New collections of Macrocephalitinae from the ?Upper Bathonian – Lower Callovian of Kachchh (Cutch olim) make it possible to discern six successive taxonomically distinguishable faunal associations. These are, from above, (6) M. semilaevis association, (5) M. formosus association, (4) M. dimerus association, (3) M. elephantinus association, (2) M. madagascariensis association, (1) M. triangularis association.Of these, Nos. 1, 4, and 6 formed the bases of the M. triangularis, M. dimerus, and M. semilaevis biozones respectively. The majority of the 19 nominal species and 6 genera in the literature on Kachchh may be condensed into only 6 dimorphic species of undivided Macrocephalites.

Oldest camarasauromorph sauropod (Dinosauria) discovered in the Middle Jurassic (Bajocian) of the Khadir Island, Kachchh, western India

PalZ ◽  
2006 ◽  
Vol 80 (1) ◽  
pp. 34-51 ◽  
Author(s):  
Markus Moser ◽  
Umesh B. Mathur ◽  
Franz T. Fürsich ◽  
Dhirendra K. Pandey ◽  
Neera Mathur
Keyword(s):  
Middle Jurassic ◽  
Western India
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