Catawba Collection 38 (Ordovician of the United States)

Where: Virginia (37.4° N, 80.9° W: paleocoordinates 29.7° S, 61.1° W)

• coordinate based on unpublished field data

• hand sample-level geographic resolution

When: Martinsburg Formation, Mohawkian (457.3 - 451.0 Ma)

• Based on Kreisa (1980, VA Tech Ph.D. dissertation), probably Trenton equivalent

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, graded, shelly/skeletal, gray packstone and lithified lime mudstone

• Interbedded medium gray limestone (skeletal packstone and lime mudstone) with lesser shale; largely thin bedded, lensatic, with some graded bedding

•

Size classes: macrofossils, mesofossils

Primary reference: K. M. Layou. 2009. Ecological restructuring after extinction: the Late Ordovician (Mohawkian) of the eastern United States. Palaios 24:118-128 [K. Layou/K. Layou]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 85609: authorized by Karen Layou, entered by Karen Layou on 12.01.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• Sowerbyella-Dalmanella community
Show authors, comments, and common names
Bivalvia
 Modiomorphida - Modiomorphidae
Modiolopsis modiolaris
Modiolopsis modiolaris Conrad 1838 clam
Craniata
 Craniopsida - Craniopsidae
Craniops sp.
Craniops sp. Hall 1859
Strophomenata
 Strophomenida - Rafinesquinidae
Rafinesquina alternata
 Strophomenida - Sowerbyellidae
Sowerbyella rugosa
Rhynchonellata
 Orthida - Dalmanellidae
Dalmanella bassleri
Dalmanella bassleri Foerste 1909
 Atrypida - Anazygidae
Zygospira lebanonensis
Trilobita
 Trinucleida - Trinucleidae
Cryptolithus sp.
Cryptolithus sp. Green 1832 trilobite
Crinoidea
  -
Crinoidea ("group 1") indet.
Crinoidea ("group 1") indet. Miller 1821 Sea lily