Filling the Gondwanan gap: paleobiogeographic implications of new crinoids from the Castillejo and Fombuena formations (Middle and Upper Ordovician, Iberian Chains, Spain)

被引：14

作者：

Cole, Selina R. ^{[1
]}

Ausich, William I. ^{[1
]}

Colmenar, Jorge ^{[2
]}

Zamora, Samuel ^{[3
,4
]}

机构：

[1] Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA

[2] Univ Copenhagen, Nat Hist Museum Denmark, Oster Voldgade 5-7, DK-1350 Copenhagen, Denmark

[3] Inst Geol & Minero Espana, C Manuel Lasala 44,9 B, Zaragoza 50006, Spain

[4] Smithsonian Inst, Natl Museum Nat Hist, Dept Paleobiol, Washington, DC 20013 USA

来源：

JOURNAL OF PALEONTOLOGY | 2017年 / 91卷 / 04期

基金：

美国国家科学基金会;

关键词：

EXTINCTION EVENT; BRACHIOPODS; ECHINODERMS; DISPARIDA; MOROCCO; CARADOC; ARENIG;

D O I：

10.1017/jpa.2016.135

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

c A diverse crinoid fauna is described from the Upper Ordovician (Katian) Fombuena Formation from the eastern Iberian Chains of Spain. New crinoids include the diplobathrid camerates Fombuenacrinus nodulus n. gen. n. sp., Goyacrinus gutierrezi n. gen. n. sp., Dalicrinus hammanni n. gen. n. sp., and Ambonacrinus decorus n. gen. n. sp.; the monobathrid camerate Eopatelliocrinus hispaniensis n. sp.; and the cladid Picassocrinus villasi n. gen. n. sp. A new occurrence of Heviacrinus melendezi Gil Cid, Dominguez Alonso, and Silvan Pobes, 1996 is also documented from the Castillejo Formation (Darriwilian, Middle Ordovician) from the eastern Iberian Chains of Spain. The Fombuena Formation comprises a Gondwanan crinoid assemblage from a high paleolatitude and has the highest crinoid diversity of any currently known Katian Gondwanan fauna. This assemblage is compared to other Katian age faunas around the globe, and its paleobiogeographic implications are discussed.

引用

页码：715 / 734

页数：20

共 8 条

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