Muhi quarry (Cretaceous to of Mexico)

Where: Hidalgo, Mexico (20.8° N, 99.3° W: paleocoordinates 18.9° N, 64.5° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: La Negra Member (El Doctor Formation), Albian to Albian (113.0 - 93.9 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified lime mudstone

• Open marine basin with a hypersaline and/or poorly oxygenated bottom
• Light gray micritic limestone sequence with intercalated black chert lenses

Size class: macrofossils

Preservation: adpression

Collected in 1998-present

• Repository: Museo de Paleontología, Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Hidalgo (UAHMP)

Primary reference: R. M. Feldmann, F. J. Vega, L. Martinez-Lopez, K. A. Gonzalez-Rodrigues, O. Gonzalex-Leon and M. Rosario Fernandez-Barajas. 2007. Crustacea from the Muhi Quarry (Albian-Cenomanian), and a review of Aptian Mecochiridae (Astacidea) From Mexico. Annals of Carnegie Museum 76(3):145-156 [C. Schweitzer/E. Johnson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135815: authorized by Shanan Peters, entered by Sharon McMullen on 10.11.2012, edited by Thomas Hegna, Josh Mordaunt, Matthew Clapham and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Thylacocephala
  -
Victoriacaris muhiensis5, Polzia eldoctorensis5
Victoriacaris muhiensis5 Hegna et al. 2014
Polzia eldoctorensis5 Hegna et al. 2014
Malacostraca
 Decapoda - Palinuridae
Palinurus sp.
Palinurus sp. Weber 1795 spiny lobster
 Decapoda - Aegeridae
Aeger hidalguensis n. sp.
Aeger hidalguensis n. sp. Feldmann et al. 2007 decapod
Actinopteri
 Holostei -
Semionotiformes indet.3
Semionotiformes indet.3 Arambourg and Bertin 1958
 Albuliformes - Albulidae
Nunaneichthys mexicanus n. gen. n. sp.6
Nunaneichthys mexicanus n. gen. n. sp.6 Hernández-Guerrero et al. 2021 bonefish
UAHMP-4232
 Teleostei -
Clupeomorpha indet.3
 Aulopiformes - Enchodontidae
Enchodus zipapanensis n. sp.2
Enchodus zipapanensis n. sp.2 Fielitz and González-Rodríguez 2010
 Aulopiformes - Ichthyotringidae
Ichthyotringidae indet.3
 Aulopiformes - Dercetidae
Dercetidae indet.3
 Acanthomorphata -
"Acanthomorpha indet." = Acanthomorphata3, Dalgoichthys tropicalis4
"Acanthomorpha indet." = Acanthomorphata3 Rosen 1973
Dalgoichthys tropicalis4 González-Rodríguez et al. 2013
Holotype: UAHMP-1387
 Beryciformes - Pseudomonocentrididae
Pseudomonocentris microspinosus4, Handuichthys interopercularis4
Pseudomonocentris microspinosus4 González-Rodríguez et al. 2013
Holotype: UAHMP-3721
Handuichthys interopercularis4 González-Rodríguez et al. 2013
Holotype: UAHMP-1389
 Teleostei -
Euteleostei indet.3
Euteleostei indet.3 Rosen 1973
 Crossognathiformes - Pachyrhizodontidae
Pachyrhizodontidae indet.3
 Ichthyodectiformes - Bardackichthyidae
Heckelichthys preopercularis1
Heckelichthys preopercularis1 Banos-Rodriguez et al. 2020
Holotype: UAHMP 443
 Aspidorhynchiformes - Aspidorhynchidae
Aspidorhynchidae indet.3
Chondrichthyes
 Rajiformes -
Rajiformes indet.3
 Lamniformes - Anacoracidae
Squalicorax sp.3
Squalicorax sp.3 Whitley 1939 crow shark
 Hybodontiformes - Ptychodontidae
Ptychodus sp.3
Ptychodus sp.3 Agassiz 1834 elasmobranch
1Banos-Rodriguez et al. 2020; 2Fielitz and González-Rodríguez 2010; 3González-Barba and Fielitz 2009; 4González-Rodríguez et al. 2013; 5Hegna et al. 2014; 6Hernández-Guerrero et al. 2021