Belemnites of the circum-Pacific region

Upper Callovian-Middle Oxfordian belemnite assemblage from Jara Dome, Western Kachchh

“…Belemnopsis, Demubelus, Hibolithes and Conodicoelites. This data confirms the existence of Himalayan province as a part of Tethyan realm for belemnites of Gondwana region (Challinor et al 2005) during the deposition of the Callovian-Oxfordian sediments. Stevens (1965) and Challinor et al (2005) while discussing the record of Indonesian Late Jurassic belemnite fauna suggested convincing evidence for the dispersal from Madagascar through Northern India to Indonesian Belemnopsis, Conodicoelites and less convincing for Indonesian Hibolithes.…”

“…This data confirms the existence of Himalayan province as a part of Tethyan realm for belemnites of Gondwana region (Challinor et al 2005) during the deposition of the Callovian-Oxfordian sediments. Stevens (1965) and Challinor et al (2005) while discussing the record of Indonesian Late Jurassic belemnite fauna suggested convincing evidence for the dispersal from Madagascar through Northern India to Indonesian Belemnopsis, Conodicoelites and less convincing for Indonesian Hibolithes. The present belemnite faunal data from Jara dome, when compared with the known belemnite records of Callovian-Oxfordian deposits of Madagascar (Combemorel, 1988), Pakistan (Spath, 1934), Spiti Himalaya (Uhlig, 1910), Southern Tibet (Yang and Wu, 1964) and Indonesia (Challinor, 1991a, b) reveal close correspondence similarity of Kachchh belemnite fauna with these region.…”

The first record of Late Jurassic megateuthidid belemnites - Chuvashiteuthis aenigmatica gen. et sp. nov. from the upper Kimmeridgian of Central Russia

“…Palaeogeographical basis is by Palaeomap maker software at GPlates Portal (portal.gplates.org) for the age 167 Ma (mid-Bathonian) with epicontinental seas drawn after Scotese (2016) data. Palaeobiogeographical subdivision is based on terminology and nomenclature employed by Challinor et al (1992), with addition of "Euro-Boreal" province, first introduced by Dommergues (1987) for the European Lower Jurassic ammonite assemblages and widely employed in Recent belemnite papers (Dera et al 2016, Weis et al 2017) as a synonym of Boreal-Atlantic belemnite province of Challinor et al (1992). Despite both biochoremas occupy similar territories, it looks reasonable to split them chronologically, restricting the Boreal-Atlantic province only to Callovian and above, and Euro-Boreal province -to Lower and early Middle Jurassic.…”

New data on Callovian (Middle Jurassic) belemnites and palynomorphs from the Northern Caucasus, southwest Russia

“…Rhopaloteuthis and Belemnopsis are typical forms of the Mediterranean Tethys. Late Middle Jurassic representatives of Belemnopsis were also recorded from South America and the southwest Pacific (Challinor et al, 1992;Doyle et al, 1996;Doyle & Pirrie, 1999), and the both genera are known from East Africa (Stevens, 1973;Combemorel, 1988) and West Antarctica (Doyle et al, 1996;Challinor & Hikuroa, 2007). This way, the belemnite finds in the Kamennomostskij section contribute to the palaeontological characteristics of the Mediterran-Caucasian domain.…”