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Wolf spider burrows from a modern saline sandflat in central Argentina: morphology, taphonomy and recognition of fossil examples

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I have left my @googlescholar_ #taphonomy alert intentionally vague, because sometimes I need to take a break and read up on fun shenanigans outside of my own field. Example A: #spider #tracefossils #ichnology https://t.co/BVfz633why https://t.co/mGVwtK8Bje
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Supplemental Information

Cast GHUNLPam-4771

Lenght =131 mm; Neck Lenght= 8mm; Minimum Diameter =15 mm; Maximum Diameter=22 mm; Angle=84º. Dweller captured (Pavocosa sp GHUNLPam-4770).

DOI: 10.7287/peerj.preprints.26674v1/supp-1

Cast GHUNLPam-4772

Lenght =115 mm; Neck Lenght= 5 mm; Minimum Diameter =15 mm; Maximum Diameter=18 mm; Angle=88º.

DOI: 10.7287/peerj.preprints.26674v1/supp-2

Cast GHUNLPam-4773

Lenght =130 mm; Neck Lenght= 6 mm; Minimum Diameter=16 mm; Maximum Diameter=27 mm; Angle=75º. Deweller captured (Pavocosa sp GHUNLPam-4770). Eggs sac found on the bottom.

DOI: 10.7287/peerj.preprints.26674v1/supp-3

Cast GHUNLPam-4774

Lenght =106 mm; Neck Lenght= 6 mm; Minimum Diameter =13 mm; Maximum Diameter=23 mm; Angle=72º. Sac of eggs found on the bottom.

DOI: 10.7287/peerj.preprints.26674v1/supp-4

Cast GHUNLPam-4775

Lenght =118 mm; Neck Lenght= 7 mm; Minimum Diameter =13 mm; Maximum Diameter=25 mm; Angle=85º.

DOI: 10.7287/peerj.preprints.26674v1/supp-5

Cast GHUNLPam-4776

Lenght =111 mm; Minimum Diameter =15 mm; Maximum Diameter=15 mm; Angle=86º; "Umbrella" Structure: Diameter= 47 x 59 mm.

DOI: 10.7287/peerj.preprints.26674v1/supp-6

Cast GHUNLPam-4777

Lenght =106 mm; Minimum Diameter =15 mm; Maximum Diameter=22 mm; Angle=78º."Umbrella" Structure Diameter= 54 x 66 mm

DOI: 10.7287/peerj.preprints.26674v1/supp-7

Cast GHUNLPam-4778

Cast GHUNLPam-4778. Lenght =116 mm; Minimum Diameter =15 mm; Maximum Diameter=22 mm; Angle=87º. Smaller burrows with around 33 mm lenght and 8 mm of diameter.

DOI: 10.7287/peerj.preprints.26674v1/supp-8

Cast GHUNLPam-4779

Lenght =130 mm; Minimum Diameter =12 mm; Maximum Diameter=100 mm; Angle=85º.

DOI: 10.7287/peerj.preprints.26674v1/supp-9

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Fatima Mendoza Belmontes conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, authored or reviewed drafts of the paper, approved the final draft.

Ricardo N Melchor conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, authored or reviewed drafts of the paper, approved the final draft.

Luis N Piacentini prepared figures and/or tables, authored or reviewed drafts of the paper, approved the final draft.

Data Deposition

The following information was supplied regarding data availability:

The casts and spider specimens collected were stored in the “Colección Paleontológica de la Facultad de Ciencias Exactas y Naturales” of the Universidad Nacional de La Pampa (acronym GHUNLPam 4770 -4780), and one of the Pavocosa sp. specimens in the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (acronym MACN- Ar 38582). Additionally, raw data have been upload as supplementary data.

Funding

This research was supported by projects PICT 2013-1129 (from Agencia Nacional de Investigaciones Científicas y Tecnológicas); PIP 2014-2016 11220130100005CO (from CONICET), and project PI09G (from Universidad Nacional de La Pampa) to RNM. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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