Middle – Late Jurassic (Late Bathonian – Tithonian) Palynomorphs
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چکیده
منابع مشابه
Hybodont Sharks of the English Bathonian and Callovian (middle Jurassic)
Recent bulk sampling and study of museum collections has revealed a high diversity of hybodont sharks from the English Bathonian, with 15 species being recognised. In addition, study of dental and skeletal material from the English Callovian has allowed the diagnosis of a new genus and species, Planohybodus peterboroughensis gen. et sp. nov., allowing the Bathonian species Hybodus grossiconus A...
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Moore, G.T., Sloan, L.C., Hayashida, D.N. and Umrigar, N.P., 1992. Paleoclimate of the Kimmeridgian/Tithonian (Late Jurassic) world: II. Sensitivity tests comparing three different paleotopographic settings. Palaeogeogr,, Palaeoclimatol., Palaeoecol., 95: 229-252. Topography and location of continents largely determine present-day climate. We conclude that in the geologic past paleotopographic ...
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Based on material from the uppermost Tithonian La Caja Formation at Puerto Piñones, northeastern Mexico, the complete ontogenetic development (protoconch to adult) of the ammonite Salinites grossicostatum is outlined by a detailed morphometrical shell analysis. The embryonic stage, consisting of a small ellipsoid protoconch and ammonitella, ends at about 0.6 mm. Four major morphological changes...
متن کاملLate Jurassic salamandroid from western Liaoning, China.
A Jurassic salamander, Beiyanerpeton jianpingensis (gen. et sp. nov.), from a recently found site in western Liaoning Province, China is the earliest known record of Salamandroidea. As a Late Jurassic record of the group, it extends the range of the clade by ~40 Ma. The Late Jurassic taxon is neotenic and represented by exceptionally preserved specimens, including fully articulated cranial and ...
متن کاملTwo new species of Mesoplecia (Insecta: Diptera: Protopleciidae) from the late Middle Jurassic of China.
Two new species of Mesoplecia Rohdendorf, 1938, M. plena sp. nov. and M. fastigata sp. nov., are described from the late Middle Jurassic Jiulongshan Formation of Daohugou, Inner Mongolia, China. Based on the emended generic diagnosis of Mesoplecia by Zhang in 2007, these two new species are assigned to Mesoplecia by a combination of the following five characters: (1) Head small; (2) Vein bRs no...
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ژورنال
عنوان ژورنال: Journal of Micropalaeontology
سال: 1985
ISSN: 2041-4978
DOI: 10.1144/jm.4.1.113