Dromicosuchus Quarry: Carnian - Norian, North Carolina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Stegomus sp. Marsh 1896
Sues et al. 2003
bones/osteoderms
Poposauridae indet. Nopcsa 1923
Sues et al. 2003 1 individual
UNC 15575 (holotype), partial skeleton
    = Postosuchus alisonae n. sp. Peyer et al. 2008
Peyer et al. 2008
Crocodylomorpha indet. (Hay 1930)
Nesbitt et al. 2014
NCSM 21722, complete, articulated skeleton with osteoderms of an undescribed basal crocodylomorph
Dromicosuchus grallator n. gen., n. sp. Sues et al. 2003
Sues et al. 2003 1 individual
UNC 15574 (holotype), skull and partial skeleton
Traversodontidae
Plinthogomphodon herpetairus n. gen., n. sp. Sues et al. 1999
1 individual
UNC 15576, snout, left coracoid and humerus
Anomodontia
Dicynodontia indet. (Owen 1859)
Sues et al. 2003 1 individual
two articulated phalanges of a large dicynodont
Amphibia - Temnospondyli
? Temnospondyli indet. von Zittel 1887
Sues et al. 2003 1 specimen
Single bone
see common names

Geography
Country:United States State/province:North Carolina County:Durham
Coordinates: 35.9° North, 78.9° West (view map)
Paleocoordinates:7.6° North, 21.3° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Triassic Epoch:Late/Upper Triassic
*Period:Late/Upper Triassic
*International age/stage:Late/Upper Carnian - Early/Lower Norian
Key time interval:Carnian - Norian
Age range of interval:237.00000 - 208.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: Late Carnian or early Norian.
All fossils found together in one bed within the "Lithofacies Association II". "Huber et al. (1993) regarded Lithofacies Association II as the stratigraphic equivalent of the lower Sanford Formation in the neighboring Sanford sub-basin. Based on the occurrence of the palaeonisciform fish Turseodus, Olsen et al. (1989) correlated Lithofacies Association II of the Deep River basin with the Lockatong Formation of the Newark basin and the 'upper member' of the Cow Branch Formation of the Dan River basin and thus regarded its age as late Carnian. Lucas et al. (1998) used the presence of the stagonolepidid Stegomus arcuatus (which they referred to Aetosaurus) to argue for an early to middle Norian age for what they termed the 'Neshanician land-vertebrate faunachron,' which includes the vertebrate assemblage from Lithofacies Association II...The biostratigraphic evidence cannot definitely resolve the question whether the tetrapod assemblage from Lithofacies Association II is late Carnian or early Norian in age."
Lithology and environment
Primary lithology:bioturbation,red calcareous sandstone
Secondary lithology: sandy mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: "red, bioturbated calcareous sandstone and sandy mudstone"
Environment:fluvial indet. Tectonic setting:rift
Geology comments: "adjacent to a channel deposit"
Taphonomy
Modes of preservation:body
Degree of concentration:-single event
Size of fossils:macrofossils
Articulated whole bodies:some
Associated major elements:none
Disassociated major elements:some
Disassociated minor elements:many
Feeding/predation traces:fractures,tooth marks
Temporal resolution:snapshot
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:salvage,selective quarrying,mechanical,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:32343
Authorizer:J. Alroy, M. Uhen, R. Butler Enterer:J. Alroy, A. Kourmadas, R. Butler
Modifier:M. Uhen Research group:vertebrate
Created:2003-06-25 16:16:48 Last modified:2020-12-03 10:20:02
Access level:the public Released:2003-06-25 16:16:48
Creative Commons license:CC BY
Reference information

Primary reference:

29892. H. -D. Sues, P. E. Olsen, and J. G. Carter. 1999. A Late Triassic traversodont cynodont from the Newark Supergroup of North Carolina. Journal of Vertebrate Paleontology 19:351-354 [R. Butler/R. Butler]

Secondary references:

63960 S. Nesbitt, V. Schneider, R.B. Irmis, L. E. Zanno, and J. Clark. 2014. The Early Evolution of Crocodylomorpha: Nearly Complete Skeletons from the Late Triassic of North Carolina Demonstrate Conservation in the Early Body Plan of a Successful Clade. Geological Society America Bulletin 46(3):22 [M. Uhen/A. Kourmadas/O. Alfaro]
29893 K. Peyer, J. G. Carter, H.-D. Sues, S. E. Novak, and P. E. Olsen. 2008. A new suchian archosaur from the Upper Triassic of North Carolina. Journal of Vertebrate Paleontology 28(2):363-381 [R. Butler/R. Butler/M. Uhen]
8725 H.-D. Sues, P. E. Olsen, J. G. Carter and D. M. Scott. 2003. A new crocodylomorph archosaur from the Upper Triassic of North Carolina. Journal of Vertebrate Paleontology 23(2):329-343 [J. Alroy/J. Alroy/R. Butler]
35610 J. C. Weinbaum. 2011. The skull of Postosuchus kirkpatricki (Archosauria: Paracrocodyliformes) from the Upper Triassic of the United States. PaleoBios 30(1):18-44 [R. Butler/R. Butler]