Papers in Florida Paleontology
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
JVP 26(3) September 2006—ABSTRACTS
Neoceti Symposium, Saturday 8:45 acid-prepared osteolepiforms Medoevia and Gogonasus has offered strong support for BODY SIZE AND CRYPTIC TROPHIC SEPARATION OF GENERALIZED Jarvik’s interpretation, but Eusthenopteron itself has not been reexamined in detail. PIERCE-FEEDING CETACEANS: THE ROLE OF FEEDING DIVERSITY DUR- Uncertainty has persisted about the relationship between the large endoskeletal “fenestra ING THE RISE OF THE NEOCETI endochoanalis” and the apparently much smaller choana, and about the occlusion of upper ADAM, Peter, Univ. of California, Los Angeles, Los Angeles, CA; JETT, Kristin, Univ. of and lower jaw fangs relative to the choana. California, Davis, Davis, CA; OLSON, Joshua, Univ. of California, Los Angeles, Los A CT scan investigation of a large skull of Eusthenopteron, carried out in collaboration Angeles, CA with University of Texas and Parc de Miguasha, offers an opportunity to image and digital- Marine mammals with homodont dentition and relatively little specialization of the feeding ly “dissect” a complete three-dimensional snout region. We find that a choana is indeed apparatus are often categorized as generalist eaters of squid and fish. However, analyses of present, somewhat narrower but otherwise similar to that described by Jarvik. It does not many modern ecosystems reveal the importance of body size in determining trophic parti- receive the anterior coronoid fang, which bites mesial to the edge of the dermopalatine and tioning and diversity among predators. We established relationships between body sizes of is received by a pit in that bone. The fenestra endochoanalis is partly floored by the vomer extant cetaceans and their prey in order to infer prey size and potential trophic separation of and the dermopalatine, restricting the choana to the lateral part of the fenestra. -
Carnivora from the Late Miocene Love Bone Bed of Florida
Bull. Fla. Mus. Nat. Hist. (2005) 45(4): 413-434 413 CARNIVORA FROM THE LATE MIOCENE LOVE BONE BED OF FLORIDA Jon A. Baskin1 Eleven genera and twelve species of Carnivora are known from the late Miocene Love Bone Bed Local Fauna, Alachua County, Florida. Taxa from there described in detail for the first time include the canid cf. Urocyon sp., the hemicyonine ursid cf. Plithocyon sp., and the mustelids Leptarctus webbi n. sp., Hoplictis sp., and ?Sthenictis near ?S. lacota. Postcrania of the nimravid Barbourofelis indicate that it had a subdigitigrade posture and most likely stalked and ambushed its prey in dense cover. The postcranial morphology of Nimravides (Felidae) is most similar to the jaguar, Panthera onca. The carnivorans strongly support a latest Clarendonian age assignment for the Love Bone Bed. Although the Love Bone Bed local fauna does show some evidence of endemism at the species level, it demonstrates that by the late Clarendonian, Florida had become part of the Clarendonian chronofauna of the midcontinent, in contrast to the higher endemism present in the early Miocene and in the later Miocene and Pliocene of Florida. Key Words: Carnivora; Miocene; Clarendonian; Florida; Love Bone Bed; Leptarctus webbi n. sp. INTRODUCTION can Museum of Natural History, New York; F:AM, Frick The Love Bone Bed Local Fauna, Alachua County, fossil mammal collection, part of the AMNH; UF, Florida Florida, has produced the largest and most diverse late Museum of Natural History, University of Florida. Miocene vertebrate fauna known from eastern North All measurements are in millimeters. The follow- America, including 43 species of mammals (Webb et al. -
Exhibit Specimen List FLORIDA SUBMERGED the Cretaceous, Paleocene, and Eocene (145 to 34 Million Years Ago) PARADISE ISLAND
Exhibit Specimen List FLORIDA SUBMERGED The Cretaceous, Paleocene, and Eocene (145 to 34 million years ago) FLORIDA FORMATIONS Avon Park Formation, Dolostone from Eocene time; Citrus County, Florida; with echinoid sand dollar fossil (Periarchus lyelli); specimen from Florida Geological Survey Avon Park Formation, Limestone from Eocene time; Citrus County, Florida; with organic layers containing seagrass remains from formation in shallow marine environment; specimen from Florida Geological Survey Ocala Limestone (Upper), Limestone from Eocene time; Jackson County, Florida; with foraminifera; specimen from Florida Geological Survey Ocala Limestone (Lower), Limestone from Eocene time; Citrus County, Florida; specimens from Tanner Collection OTHER Anhydrite, Evaporite from early Cenozoic time; Unknown location, Florida; from subsurface core, showing evaporite sequence, older than Avon Park Formation; specimen from Florida Geological Survey FOSSILS Tethyan Gastropod Fossil, (Velates floridanus); In Ocala Limestone from Eocene time; Barge Canal spoil island, Levy County, Florida; specimen from Tanner Collection Echinoid Sea Biscuit Fossils, (Eupatagus antillarum); In Ocala Limestone from Eocene time; Barge Canal spoil island, Levy County, Florida; specimens from Tanner Collection Echinoid Sea Biscuit Fossils, (Eupatagus antillarum); In Ocala Limestone from Eocene time; Mouth of Withlacoochee River, Levy County, Florida; specimens from John Sacha Collection PARADISE ISLAND The Oligocene (34 to 23 million years ago) FLORIDA FORMATIONS Suwannee -
Well Construction at the Lake Amoret Well Site in Polk County, Florida
Well Construction at the Lake Amoret Well Site in Polk County, Florida Southwest Florida Water Management District Geohydrologic Data Section Revised March 2019 Cover Photo: Permanent monitor wells at the Lake Amoret well site in Polk County, Florida. In order from left to right: SURF AQ MONI- TOR, U FLDN AQ MONITOR. Photograph by Julia Zydek Well Construction at the Lake Amoret Well Site in Polk County, Florida By Julia Zydek Revised March 2018 Southwest Florida Water Management District Geohydrologic Data Section Southwest Florida Water Management District Operations, Lands and Resource Monitoring Division Ken Frink, P.E., Director Data Collection Bureau Sandie Will, P.G., Chief Geohydrologic Data Section M. Ted Gates, P.G., C.P.G., Manager Southwest Florida Water Management District 2379 Broad Street Brooksville, FL 34604-6899 For ordering information: World Wide Web: http://www.watermatters.org/documents Telephone: 1-800-423-1476 For more information on the Southwest Florida Water Management District and its mission to manage and protect water and related resources: World Wide Web: http://www.watermatters.org Telephone: 1-800-423-1476 The Southwest Florida Water Management District (District) does not discriminate on the basis of disability. This nondiscrimination policy involves every aspect of the District’s functions, includ- ing access to and participation in the District’s programs and activities. Anyone requiring reason- able accommodation as provided for in the Americans with Disabilities Act should contact the District’s Human Resources Office Chief, 2379 Broad St., Brooksville, FL 34604-6899; telephone (352) 796-7211 or 1-800-423-1476 (FL only), ext. -
O Ssakach Drapieżnych – Część 2 - Kotokształtne
PAN Muzeum Ziemi – O ssakach drapieżnych – część 2 - kotokształtne O ssakach drapieżnych - część 2 - kotokształtne W niniejszym artykule przyjrzymy się ewolucji i zróżnicowaniu zwierząt reprezentujących jedną z dwóch głównych gałęzi ewolucyjnych w obrębie drapieżnych (Carnivora). Na wczesnym etapie ewolucji, drapieżne podzieliły się (ryc. 1) na psokształtne (Caniformia) oraz kotokształtne (Feliformia). Paradoksalnie, w obydwu grupach występują (bądź występowały w przeszłości) formy, które bardziej przypominają psy, bądź bardziej przypominają koty. Ryc. 1. Uproszczone drzewo pokrewieństw ewolucyjnych współczesnych grup drapieżnych (Carnivora). Ryc. Michał Loba, na podstawie Nyakatura i Bininda-Emonds, 2012. Tym, co w rzeczywistości dzieli te dwie grupy na poziomie anatomicznym jest budowa komory ucha środkowego (bulla tympanica, łac.; ryc. 2). U drapieżnych komora ta jest budowa przede wszystkim przez dwie kości – tylną kaudalną kość entotympaniczną i kość ektotympaniczną. U kotokształtnych, w miejscu ich spotkania się ze sobą powstaje ciągła przegroda. Obydwie części komory kontaktują się ze sobą tylko za pośrednictwem małego okienka. U psokształtnych 1 PAN Muzeum Ziemi – O ssakach drapieżnych – część 2 - kotokształtne Ryc. 2. Widziane od spodu czaszki: A. baribala (Ursus americanus, Ursidae, Caniformia), B. żenety zwyczajnej (Genetta genetta, Viverridae, Feliformia). Strzałkami zaznaczono komorę ucha środkowego u niedźwiedzia i miejsce występowania przegrody w komorze żenety. Zdj. (A, B) Phil Myers, Animal Diversity Web (CC BY-NC-SA -
71St Annual Meeting Society of Vertebrate Paleontology Paris Las Vegas Las Vegas, Nevada, USA November 2 – 5, 2011 SESSION CONCURRENT SESSION CONCURRENT
ISSN 1937-2809 online Journal of Supplement to the November 2011 Vertebrate Paleontology Vertebrate Society of Vertebrate Paleontology Society of Vertebrate 71st Annual Meeting Paleontology Society of Vertebrate Las Vegas Paris Nevada, USA Las Vegas, November 2 – 5, 2011 Program and Abstracts Society of Vertebrate Paleontology 71st Annual Meeting Program and Abstracts COMMITTEE MEETING ROOM POSTER SESSION/ CONCURRENT CONCURRENT SESSION EXHIBITS SESSION COMMITTEE MEETING ROOMS AUCTION EVENT REGISTRATION, CONCURRENT MERCHANDISE SESSION LOUNGE, EDUCATION & OUTREACH SPEAKER READY COMMITTEE MEETING POSTER SESSION ROOM ROOM SOCIETY OF VERTEBRATE PALEONTOLOGY ABSTRACTS OF PAPERS SEVENTY-FIRST ANNUAL MEETING PARIS LAS VEGAS HOTEL LAS VEGAS, NV, USA NOVEMBER 2–5, 2011 HOST COMMITTEE Stephen Rowland, Co-Chair; Aubrey Bonde, Co-Chair; Joshua Bonde; David Elliott; Lee Hall; Jerry Harris; Andrew Milner; Eric Roberts EXECUTIVE COMMITTEE Philip Currie, President; Blaire Van Valkenburgh, Past President; Catherine Forster, Vice President; Christopher Bell, Secretary; Ted Vlamis, Treasurer; Julia Clarke, Member at Large; Kristina Curry Rogers, Member at Large; Lars Werdelin, Member at Large SYMPOSIUM CONVENORS Roger B.J. Benson, Richard J. Butler, Nadia B. Fröbisch, Hans C.E. Larsson, Mark A. Loewen, Philip D. Mannion, Jim I. Mead, Eric M. Roberts, Scott D. Sampson, Eric D. Scott, Kathleen Springer PROGRAM COMMITTEE Jonathan Bloch, Co-Chair; Anjali Goswami, Co-Chair; Jason Anderson; Paul Barrett; Brian Beatty; Kerin Claeson; Kristina Curry Rogers; Ted Daeschler; David Evans; David Fox; Nadia B. Fröbisch; Christian Kammerer; Johannes Müller; Emily Rayfield; William Sanders; Bruce Shockey; Mary Silcox; Michelle Stocker; Rebecca Terry November 2011—PROGRAM AND ABSTRACTS 1 Members and Friends of the Society of Vertebrate Paleontology, The Host Committee cordially welcomes you to the 71st Annual Meeting of the Society of Vertebrate Paleontology in Las Vegas. -
Hipparion” Cf
©Verein zur Förderung der Paläontologie am Institut für Paläontologie, Geozentrum Wien Beitr. Paläont., 30:15-24, Wien 2006 Hooijer’s Hypodigm for “ Hipparion” cf. ethiopicum (Equidae, Hipparioninae) from Olduvai, Tanzania and comparative Material from the East African Plio-Pleistocene by Miranda A rmour -Chelu 1}, Raymond L. Bernor 1} & Hans-Walter Mittmann * 2) A rmour -C helu , M., Bernor , R.L. & M ittmann , H.-W., 2006. Hooijer’s Hypodigm for “ Hipparion” cf. ethiopicum (Equidae, Hipparioninae) from Olduvai, Tanzania and comparative Material from the East African Plio-Pleistocene. — Beitr. Palaont., 30:15-24, Wien. Abstract cranialen Elemente die Hooijer zu diesem Taxon gestellt hat, auf die er sich bezogen hat oder die in irgendeiner We review here the problematic history of the nomen Beziehung dazu stehen, haben wir wiedergefunden. Selbst “Hipparion”cf. ethiopicum and Hooijer’s efforts to bring zusätzliche Fundstücke aus zeitgleichen Horizonten haben some taxonomic sense to the later Pliocene - Pleistocene wir miteinbezogen, in der Absicht, die Gültigkeit von Eu hipparion record. We review his reasoning, and the shifts rygnathohippus cf.“ethiopicum" und seines Verwandten in taxonomic allocation made by him and other equid Eurygnathohippus cornelianus und weiterer Formen, von researchers during the 1970’s. We have relocated many denen Hooijer geglaubt hat, dass sie in einem evolutionären of the postcranial specimens attributed by Hooijer to Zusammenhang mit „ Hipparion“ cf. ethiopicum stehen, “Hipparion” cf. ethiopicum, as well as other specimens zu testen. Wir machen statistische und vergleichende which he referred to, or related to this species. We have Analysen um dieses Hypodigma zu klären. also considered additional specimens from contempo raneous horizons, in order to reevaluate the efficacy of Eurygnathohippus cf “ethiopicum” and its apparent rela 1. -
Optimizing Phylogenetic Supertrees Using Answer Set Programming Laura Koponen1, Emilia Oikarinen1, Tomi Janhunen1, and Laura Säilä2 1 HIIT / Dept
Optimizing Phylogenetic Supertrees Using Answer Set Programming Laura Koponen1, Emilia Oikarinen1, Tomi Janhunen1, and Laura Säilä2 1 HIIT / Dept. Computer Science, Aalto University 2 Dept. Geosciences and Geography, University of Helsinki Computational logic day 2015 — Aalto, Finland Outline Introduction — the supertree problem ASP Encodings — trees, quartets and projections Experiments — Felidae data Conclusions Koponen et al., Optimizing Phylogenetic Supertrees Using ASP Computational logic day 2015 2/31 I Several measures can be used used I Optimal tree not necessarily unique I Output: a phylogenetic tree that covers all taxa from input and reflects the relationships in input as well as possible The supertree problem I Input: a set of overlapping, possibly conflicting phylogenetic trees (rooted, leaf-labeled) Koponen et al., Optimizing Phylogenetic Supertrees Using ASP Computational logic day 2015 3/31 The supertree problem I Input: a set of overlapping, possibly conflicting phylogenetic trees (rooted, leaf-labeled) I Output: a phylogenetic tree that covers all taxa from input and reflects the relationships in input as well as possible I Several measures can be used used I Optimal tree not necessarily unique Koponen et al., Optimizing Phylogenetic Supertrees Using ASP Computational logic day 2015 4/31 Solving the supertree problem I Typically heuristic methods are used, e.g. matrix representation with Parsimony (MRP) [Baum, 1992; Ragan,1992] I input trees encoded into a binary matrix, and maximum parsimony analysis is then used to construct -
Diplomarbeit
DIPLOMARBEIT KILLING BEHAVIOR IN SMILODON FATALIS (MAMMALIA, CARNIVORA, FELIDAE) BASED ON FUNCTIONAL ANATOMY AND BODY PROPORTIONS OF THE FRONT- AND HIND LIMBS BY JENS-UWE SCHMIEDER GEOLOGISCHES INSTITUT DER EBERHARDT-KARLS-UNIVERSITÄT TÜBINGEN JULY 2000 Jens Schmieder Page II 02.07.2003 Hiermit versichere ich, die vorliegende Arbeit selbständig und nur unter Zuhilfenahme erlaubter und angegebener Hilfsmittel angefertigt zu haben. Tübingen, August 2000. (Jens Schmieder) Jens Schmieder Page III 02.07.2003 Abstract Elongated canines exclusively evolved in carnivores, which are able to stabilize their victims with their anterior extremities. It was shown that power and agility of the front limbs are strongly correlated with the development of sabers. Limb- and skull proportions of the extinct cat Smilodon fatalis were therefore compared with those of six extant species of large felids and those of Canis lupus. Furthermore, differences in hunting behavior and locomotory capabilities were analyzed. Ratios of limb segment lengths have been shown to relate to functional and locomotory differences (e.g., cursoriality) in both extinct and extant felines. S. fatalis is equipped with relatively short and sturdy limbs. Moreover, it possessed a great angle of inclination of the olecranon fossa relative to the long axis of the humerus, in addition to a wide and laterally oriented radial notch. The radial head was more circular than in any other extant cat member. Additionally, the Teres major muscle inserts further away from the shoulder joint and the joints are more powerfully built and demonstrate a great amount of strength and flexibility. It is very likely that Smilodon preyed on the large contemporary megafauna because of its overall more powerful anatomy compared to that of modern felines. -
Endemism and Migration in the Kochkor Basin? Identification and Description of Adcrocuta Eximia (Mammalia: Carnivora: Hyaenidae) and C.F
Palaeontologia Electronica palaeo-electronica.org Endemism and migration in the Kochkor Basin? Identification and description of Adcrocuta eximia (Mammalia: Carnivora: Hyaenidae) and c.f. Paramachaerodus (Mammalia: Carnivora: Felidae) fossils at the Miocene locality of Ortok, Kyrgyzstan Sophie A. Miller, Paul Z. Barrett, Win N.F. McLaughlin, and Samantha S.B. Hopkins ABSTRACT Dentition from a Miocene hyaenid and a saber-toothed felid are described from the Chu Formation of Kyrgyzstan. Identified as Adcrocuta eximia (UOMNH F-70508) and c.f. Paramachaerodus (UOMNH F-70509), these represent one of the only formal- ized descriptions of fossil taxa from the Miocene in Kyrgyzstan. These specimens were recovered from the Ortok locality at the northwestern corner of the Kochkor Basin, the youngest of the known bone-bed localities in the Chu Formation. Using bio- and mag- netostratigraphy, the Chu Formation is attributed to the late Miocene to Pliocene, deposited approximately at 8 to 4 Ma. The Adcrocuta specimen consists of a partial dentary with condylar and angular processes, one upper, five lower teeth, and the par- tial root and alveoli of a fifth mandibular tooth. The c.f. Paramachaerodus specimen includes a partial M1, P4, and C1, and exhibits the features of the “scimitar-toothed” machairodontines. Preserved diagnostic characters place the Kyrgyz specimen closest to P. ogygia, although with certain features similar to that of P. transasiaticus, such as incipient crenulations on the canine. However, the age of the Kyrgyz specimen, approximately 6 Ma, is substantially younger than what is known for either of these taxa. We therefore hypothesize this Paramachaerodus specimen could be evidence of an endemic taxon in Kyrgyzstan from earlier migrating Asian species, potentially due to geological uplift with the Tien Shan Mountains. -
The Favorability of Florida's Geology to Sinkhole
Appendix H: Sinkhole Report 2018 State Hazard Mitigation Plan _______________________________________________________________________________________ APPENDIX H: Sinkhole Report _______________________________________________________________________________________ Florida Division of Emergency Management THE FAVORABILITY OF FLORIDA’S GEOLOGY TO SINKHOLE FORMATION Prepared For: The Florida Division of Emergency Management, Mitigation Section Florida Department of Environmental Protection, Florida Geological Survey 3000 Commonwealth Boulevard, Suite 1, Tallahassee, Florida 32303 June 2017 Table of Contents EXECUTIVE SUMMARY ............................................................................................................ 4 INTRODUCTION .......................................................................................................................... 4 Background ................................................................................................................................. 5 Subsidence Incident Report Database ..................................................................................... 6 Purpose and Scope ...................................................................................................................... 7 Sinkhole Development ................................................................................................................ 7 Subsidence Sinkhole Formation .............................................................................................. 8 Collapse Sinkhole -
Bruce J. Macfadden*
MacFadden, B.J., 2006, Early Pliocene (latest Hemphillian) horses from the Yepómera Local 33 Fauna, Chihuahua, Mexico, in Carranza-Castañeda, Óscar, and Lindsay, E.H., eds., Advances in late Tertiary vertebrate paleontology in Mexico and the Great American Biotic Interchange: Universidad Nacional Autónoma de México, Instituto de Geología and Centro de Geociencias, Publicación Especial 4, p. 33–43. EARLY PLIOCENE (LATEST HEMPHILLIAN) HORSES FROM THE YEPÓMERA LOCAL FAUNA, CHIHUAHUA, MEXICO Bruce J. MacFadden* ABSTRACT The latest Hemphillian (Hh4) is characterized by a distinctive equid assemblage, four spe- cies of which are widespread in North America. One of the largest collections of Hh4 equids is from Yepómera, located in Chihuahua, Mexico. Although Yepómera is actually a series of sub-localities, the equids are morphologically similar from each of these and therefore can be considered as a local faunal assemblage of four sympatric species. The distinctive dental patterns, size of the cheek teeth, and (in most cases) metapodial dimensions, make these horses readily distinguishable in the field. Yepómera equids include the monodactyl Astrohippus stockii and Dinohippus mexicanus, and tridactyl Neohipparion eurystyle and Nannippus aztecus. Yepómera is the type locality for the species A. stockii and D. mexica- nus, both described by Lance in 1950. Neohipparion eurystyle and the genus Neohipparion and A. stockii and the genus Astrohippus become extinct at the end of Hh4. Nannippus aztecus is a sister taxon of later Nannippus and D. mexicanus is the sister taxon of Equus, the equid genera that survived in North America during the Plio-Pleistocene. With hypsodonty indices between 2.6 and 3.7, all of the Yepómera horse species have high-crowned teeth, traditionally interpreted as a grazing adaptation.