A new genus of coleoid cephalopod from the Jackson Group (Late Eocene), Hinds County, Mississippi

被引：0

作者：

Weaver, Patricia G. ^{[1
]}

Dockery, David T., III ^{[2
]}

Ciampaglio, Charles N. ^{[3
]}

机构：

[1] N Carolina Museum Nat Sci, Raleigh, NC 27601 USA

[2] Mississippi Off Geol, Jackson, MS 39202 USA

[3] Wright State Univ, Dept Geol, Celina, OH 45822 USA

来源：

PALAEONTOGRAPHICA ABTEILUNG A-PALAOZOOLOGIE-STRATIGRAPHIE | 2010年 / 292卷 / 1-3期

关键词：

Coleoid; Mississaepia mississippiensis; Belsosaepiidae; Eocene; Mississippi; SOUTHEASTERN NORTH-CAROLINA; CASTLE HAYNE LIMESTONE;

D O I：

暂无

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

A new genus Mississaepia and one new species Mississaepia mississippiensis is described based on two specimens of guard-like sheaths from the Bartonian (Eocene) Moodys Branch Formation, Town Creek, Jackson, Hinds County, Mississippi and twenty-nine specimens from the Priabonian (Eocene) Yazoo Clay, Miss Lite Clay Pit, Cynthia, Hinds County, Mississippi. Mississaepia mississippiensis n. gen. differs from Belosaepia VOLTZ, in having a reduced more blunt spine, having a thin ventro-lateral wall which tapers anteriorly and lacking a pronounced ventral plate. The new genus also differs from Belemnosella NAEF known from the Moodys Branch Formation, Gosport Sand and Cook Mountain Formation in having a curved phragmocone. Due to its curved phragmocone and other belosaepiid-like morphological features, Mississaepia mississippiensis n. gen. is tentatively assigned to the family Belosaepiidae.

引用

页码：53 / 63

页数：11

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