Sunnyside sponge mounds, Egan Range (Ordovician of the United States)

Also known as Reef 2367

Where: Nevada (38.4° N, 115.0° W: paleocoordinates 6.6° S, 83.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Shingle Limestone Formation (Pogonip Group), Arenigian (478.6 - 468.1 Ma)

• probably trilobite zone J (uppermost Ibexian) or brachiopod zone L (Orthidiella) of Lower Whiterockian age

• group of beds-level stratigraphic resolution

Environment/lithology: intrashelf or intraplatform reef; lithified limestone

• margin of an intra-shelf basin in only 10 to 20 m of water
• abundant sponge/algal reef mounds, 2 to 7 m across and 1 to 4 m high

Size class: macrofossils

Primary reference: R. A. Johns. 1994. Ordovician lithistid sponges of the Great Basin. Nevada Bureau of Mines and Geology Open-File Report 94(1):1-156 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 119436: authorized by Wolfgang Kiessling, entered by Uta Merkel on 26.10.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Demospongea
 Lithistida - Streptosolenidae
Streptosolen mccafferyi n. sp. Johns 1994 demosponge
Lissocoelia cylindrica n. sp. Johns 1994 demosponge
 Lithistida - Anthaspidellidae
Colinispongia regularis n. sp. Johns 1994 demosponge
Archaeoscyphia bassleri n. sp. Johns 1994 demosponge
Archaeoscyphia rossi n. sp. Johns 1994 demosponge
Archaeoscyphia eganensis n. sp. Johns 1994 demosponge
Archaeoscyphia pannosa n. sp. Johns 1994 demosponge
Rugocoelia eganensis n. gen. n. sp. Johns 1994 demosponge
Calycocoelia murella n. sp. Johns 1994 demosponge
Egania typicalis n. gen. n. sp. Johns 1994 demosponge
Patellispongia oculata Bassler 1927 demosponge
Patellispongia brosiusae n. sp. Johns 1994 demosponge