Parachucla Formation

The Parachucla Formation is a geologic formation in Florida. It preserves fossils dating back to the Paleogene period.

Parachucla Formation
Stratigraphic range: Latest Oligocene to Early Miocene[1]
TypeGeological formation
Unit ofHawthorn Group
Location
Region Florida
Country United States

Fossil content

Mammals
Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
 Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.
Sirenians
GenusSpeciesPresence MaterialNotesImages
Crenatosiren C. olseni A skull and skeleton.[2] A dugongid originally placed in the genus Halitherium. Also found in the Ashley and Chandler Bridge formations.
Halitherium H. olseni A skull and skeleton.[2] Reassigned to the genus Crenatosiren.[2]
Metaxytherium M. albifontanum Porters Landing Member.[3] Remains of a subadult (UF 49051).[3] A dugongid also found in the Chandler Bridge Formation.

Fish
Sharks
GenusSpeciesPresence MaterialNotesImages
Otodus O. angustidens A tooth (UF 17994).[4] A megatoothed shark.

Invertebrates
Crustaceans
GenusSpeciesPresence MaterialNotesImages
Balanus B. reflexus Porters Landing Member.[5] Scutum (UF 25603a).[5] A balanid barnacle.
Concavus C. crassostricola Porters Landing Member.[5] 13 scuta, 1 tergum, 3 shells.[5] A balanid barnacle.
Solidobalanus S. sp. indet. Porters Landing Member.[5] 2 scuta, disarticulated compartmental plates.[5] An archaeobalanid barnacle.

See also

References
  1. Perez, Victor J. (n.d.). "The chondrichthyan fossil record of the Florida Platform (Eocene–Pleistocene)". Paleobiology. 48 (4): 622–654. doi:10.1017/pab.2021.47. ISSN 0094-8373. S2CID 248255092.
  2. Domning, Daryl P. (1997-06-19). "Fossil Sirenia of the west Atlantic and Caribbean region. VI. Crenatosiren olseni (Reinhart, 1976)". Journal of Vertebrate Paleontology. 17 (2): 397–412. doi:10.1080/02724634.1997.10010984. ISSN 0272-4634.
  3. VÉLEZ-JUARBE, JORGE; DOMNING, DARYL P. (2014). "Fossil Sirenia of the West Atlantic and Caribbean Region. Ix. Metaxytherium Albifontanum, Sp. Nov". Journal of Vertebrate Paleontology. 34 (2): 444–464. doi:10.1080/02724634.2013.799072. ISSN 0272-4634. JSTOR 24523238. S2CID 86498351.
  4. Perez, Victor J. (n.d.). "The chondrichthyan fossil record of the Florida Platform (Eocene–Pleistocene)". Paleobiology. 48 (4): 622–654. doi:10.1017/pab.2021.47. ISSN 0094-8373. S2CID 248255092.
  5. Zullo, Victor A.; Portell, Roger W. (1991). "Balanoid Barnacles from the Early Miocene Parachucla and Penney Farms Formations, Northern Florida". Tulane Studies in Geology and Paleontology. 24 (4).


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