Where: Chiapas, Mexico (16.7° N, 93.5° W: paleocoordinates 14.4° N, 51.1° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Sierra Madre Formation, Aptian (125.0 - 113.0 Ma)
• "lowermost lithofacies" of formation
• group of beds-level stratigraphic resolution
Environment/lithology: paralic; claystone and dolomitic limestone
Size classes: macrofossils, mesofossils
Preservation: adpression
Collection methods: quarrying,
• material from "a series of shallow excavations exploited by locals"
Primary reference: F. J. Vega, P. García-Barrera, M. Carmen Perrilliat, M. A. Coutiño, and R. Mariño-Pérez. 2006. El Espinal, a new plattenkalk facies locality from the Lower Cretaceous Sierra Madre Formation, Chiapas, southeastern Mexico. Revista Mexicana de Ciencias Geológicas 23(3):323-333 [J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 68835: authorized by John Alroy, entered by John Alroy on 09.02.2007, edited by Matthew Carrano and Patricia Holroyd
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
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unclassified | |
Actinopteri | |
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Saurorhamphus sp.2 Heckel 1850 | |
Enchodontidae indet.1 Woodward 1901 | |
Ellimmichthyiformes indet.1 Grande 1982 | |
Paraclupeidae "genus and species unnamed"2, "Triplomystus applegatei n. sp." = Scutatoclupea applegatei1
"Triplomystus applegatei n. sp." = Scutatoclupea applegatei1 Alvarado-Ortega and Ovalles-Damián 2008 INAH 1941
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Ichthyodectiformes indet.1 Bardack and Sprinkle 1969 | |
Macrosemiocotzus sp.2 González-Rodríguez et al. 2004 | |
Pycnodontidae indet.2 Agassiz 1833 | |
Gastropoda | |
? Perissoptera sp. Tate 1865 snail | |
Bivalvia | |
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Deuteropoda | |
Ostracoda indet. Latreille 1802 ostracod | |
Malacostraca | |
Roemerus robustus Bishop 1983 crab | |
Palinurus palaciosi n. sp.
Palinurus palaciosi n. sp. Vega et al. 2006 spiny lobster | |
Sphaeromatidae indet. Latreille 1825 isopod | |
Cirolanidae indet. Dana 1852 pill bug | |
| |
Insecta | |
Zygoptera indet. Selys-Longchamps 1854 damselfly | |
? Belostomatidae indet. Leach 1815 giant water bug | |
unclassified | |
| |
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Ginkgoopsida | |
Ephedra sp. Linnaeus 1753 jointfir | |
Angiospermae | |
Bombacaceae indet. Kunth | |
Moraceae indet. Link 1835 mulberry | |
Arecipites sp. Nichols et al. 1973 palm | |
Lauraceae indet. Jussieu 1789 laurel | |
Lycopodiopsida | |
Selaginella sp. Beauvois 1804 spikemoss | |
Sphagnum | |
Sphagnum sp. Linnaeus 1753 peat moss | |
Polypodiopsida | |
Osmundaceae indet. Berchtold and Presl
Osmunda sp. Linnaeus 1753 | |
| |
Pseudoplicapollis | |
Pseudoplicapollis sp. Krutzsch 1967 |