Searching for a non-marine Jurassic/Cretaceous boundary in northeastern China

Chen, Yingjie; Matsuoka, Atsushi

doi:10.5575/geosoc.2015.0001

Cited by 22 publications

(2 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All these special features make clam shrimps the very successful colonizers of ephemeral freshwater ecosystems [4] under a wet and dry alternating climate setting in the earth history [5]. This results in very abundant fossil records worldwide in the Mesozoic fine lacustrine deposits [6]- [11].…”

Section: Living Environment Of Clam Shrimpsmentioning

confidence: 99%

A Hope for an Integrated Taxonomy of Fossil and Extant Clam Shrimps

Li¹,

Teng²

2019

OJG

View full text Add to dashboard Cite

Clam shrimps are large bivalved branchiopod crustacean. They first occurred in the Devonian, and flourished during the Mesozoic in Asia. Fossil clam shrimps play an important role in the subdivision and correlation of non-marine fossil-bearing strata. The phosphatized carapaces or carapace external/internal moulds are the main objects for taxonomical studies. The delicate ornament and the ontogenetically developing morphological patterns on the growth bands of carapaces are the main fossil taxonomic criteria. While modern clam shrimp taxonomy is based on soft body morphological features and molecular data, which could not be found in the fossil records. This makes it difficult to discuss the fossil and modern clam shrimp phylogenetic relationship. Nowadays scanning electron microscopes are widely available, and can play an important role in investigating clam shrimp carapace morphology which could be common language to integrate fossil and modern taxonomy.

show abstract

Section: Living Environment Of Clam Shrimpsmentioning

confidence: 99%

A Hope for an Integrated Taxonomy of Fossil and Extant Clam Shrimps

Li¹,

Teng²

2019

OJG

View full text Add to dashboard Cite

show abstract

“…The lack of index fossils makes it difficult to correlate precisely the nonmarine Cretaceous successions with the standard geological time scale. In particular, it is problematic to identify the nonmarine Jurassic-Cretaceous boundary [3], and to date the well-known Jehol Biota [4]…”

Section: Introductionmentioning

confidence: 99%

The Key Role of Aptian-Albian Marine Fossils from Eastern Heilongjiang in Marine-Nonmarine Stratigraphic Correlation

Li¹,

Bengtson²

2019

OJG

View full text Add to dashboard Cite

The alternating marine and nonmarine coal-bearing Lower Cretaceous successions are well developed in eastern Heilongjiang, northeastern China, including the Jixi Group in the west and the Longzhaogou Group in the east. The correlation of these two lithostratigraphic groups with the nonmarine Jehol Group is important for dating the exceptionally well-preserved Jehol Biota. The Early Cretaceous marine fossils recovered from eastern Heilongjiang include ammonites, bivalves, radiolarians, foraminifers and dinocysts. During the early Aptian transgression the ammonite fauna entered the Hulin and Mishan areas and the bivalve Aucellina fauna in the Jixi area. This enables correlation of the marine lower part of the Chengzihe Formation of the Jixi Group with the Qihulin Formation of the Longzhaogou Group.

show abstract