NDLI: The first record of Helicoprion Karpinsky (Helicoprionidae) from China

Content Provider	Springer Nature Link
Author	Chen, XiaoHong Cheng, Long Yin, KaiGuo
Copyright Year	2007
Abstract	A new species, Helicoprion jingmenense sp. nov., from the Lower Permian Qixia Formation of Hubei Province, China, is described based on a nearly complete symphyseal tooth spiral preserved as part and counterpart. The specimen is a large elliptical symphyseal tooth spiral with $$ 4{\raise0.5ex\hbox{$\scriptstyle 1$} -0.1em/-0.15em \lower0.25ex\hbox{$\scriptstyle 3$}} $$ volutions, with cutting blade being relatively wide, and its width being greater than the height after 3½ volution, middle portion being higher than the cutting blade, narrowed base being short. There is a distinct space not covered by enameloid in two adjacent tooth crowns in the outermost two volutions; the height of the compound root is moderate, and the ventral groove is about 1/10 of the same tooth crown. In comparison with other known Helicoprion species of the world, the new species resembles H. ferrieri and H. bessonowi. However, it can be easily distinguished from H. ferrieri by the wider cutting blade, the shorter narrowed base and lower compound root, and also from H. bessonowi by its more narrowed compound root and less than 39 tooth crowns per volution. Helicoprion jingmenense sp. nov. is obviously different from helicoprionid species previously found in China in general shape, size and histology. However, it is very difficult to identify their relationships because of the fragmentary nature of holotypes of the latter. Because the new specimen is the first record of Helicoprion and the most complete fossil dentition of helicoprionids from China, the new species is of significance for biostratigraphy and paleobiogeography.
Starting Page	2246
Ending Page	2251
Page Count	6
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	52
Issue Number	16
e-ISSN	18619541
Language	English
Publisher	Science in China Press
Publisher Date	2007-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	Permian Helicoprion Hubei Province Science Physics Chemistry/Food Science Life Sciences Geosciences Engineering
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Chronological and geochemical constraints on the assumed large permian volcanic province in Southwest China

Permian palynofloras from Yongchang and Sunan of Gansu Province and their phytoprovincial characteristics

U-Pb zircon dating of the glaucophane eclogites from the Southern Dabie Mountains, North Hubei Province

Carbon isotope excursions across the Permian-Triassic boundary in the Meishan section, Zhejiang Province, China

Sauropterygian from Triassic of Guizhou, China

Discovery of Corallina fossil from the Middle Cambrian of Taijiang County, Guizhou Province, China

Huanglong cave, a new late pleistocene hominid site in Hubei Province, China

Evidence of fire use of late Pleistocene humans from the Huanglong Cave, Hubei Province, China

Large selenium isotopic variations and its implication in the Yutangba Se deposit, Hubei Province, China

The first record of Helicoprion Karpinsky (Helicoprionidae) from China

Similar Documents

Chronological and geochemical constraints on the assumed large permian volcanic province in Southwest China

Permian palynofloras from Yongchang and Sunan of Gansu Province and their phytoprovincial characteristics

U-Pb zircon dating of the glaucophane eclogites from the Southern Dabie Mountains, North Hubei Province

Carbon isotope excursions across the Permian-Triassic boundary in the Meishan section, Zhejiang Province, China

Sauropterygian from Triassic of Guizhou, China

Discovery of Corallina fossil from the Middle Cambrian of Taijiang County, Guizhou Province, China

Huanglong cave, a new late pleistocene hominid site in Hubei Province, China

Evidence of fire use of late Pleistocene humans from the Huanglong Cave, Hubei Province, China

Large selenium isotopic variations and its implication in the Yutangba Se deposit, Hubei Province, China

The first record of Helicoprion Karpinsky (Helicoprionidae) from China