Andre’s Alcove Dinosaur Tracksite (Jurassic of the United States)

Also known as AAT

Where: San Juan County, Utah (37.4° N, 110.8° W: paleocoordinates 22.5° N, 48.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Navajo Sandstone Formation (Glen Canyon Group), Pliensbachian (190.8 - 182.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: dune; dolomitic, gray sandstone and carbonate

• "dark gray, coarse-grained, sandy dolostones"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by A. Delgalvis, SGDS in 2016–2018

Collection methods: surface (in situ),

• "The AAT was originally discovered by commercial photographer Andre Delgalvis, who reported the site to the NPS the year before. Following fieldwork in 2017, another team from the NPS and SGDS returned to the site in 2018." SGDS = St. George Dinosaur Discovery Site.

Primary reference: C. Bennett, A. R. C. Milner, and J. D. Harris. 2023. A glimpse through time: preliminary report of the Andre’s Alcove Tracksite, Lower Jurassic Navajo Sandstone, Glen Canyon National Recreation Area, Utah. Curiosity: Interdisciplinary Journal of Research and Innovation 1-9 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 229818: authorized by Matthew Carrano, entered by Matthew Carrano on 27.03.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Theropoda - Grallatoridae
Grallator sp., Eubrontes sp.
Grallator sp. Hitchcock 1858 theropod
AAT-S1L-09, AAT-S1U-02, AAT-S2-03 to AAT-S2-05
Eubrontes sp. Hitchcock 1845 theropod
AAT-S1L-01 to AAT-S1L-08, AAT-S1L-10, AAT-S1L-11, AAT- S1U-01, AAT-S1U-03 to AAT-S1U-19, AAT-S2-01, AAT-S2-06 to AAT-S2-10, AAT-S2-12 to AAT-S2-19
 Ornithischia - Moyenisauropodidae
Anomoepus sp.
Anomoepus sp. Hitchcock 1848 ornithopod
AAT-S2-02, AAT-S2-11
 Pseudosuchia - Batrachopodidae
Batrachopus sp.
Batrachopus sp. Hitchcock 1845 aetosaur