DOCSLIB.ORG

June-July 12

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
June-July 12 TRANSIT OF VENUS: JUNE 5 Another solar event will take place on June 5. This event is a Transit of Venus, in which the planet Venus visibly and slowly moves across the disk of the sun. This is the ONLY transit of Venus that will take place in the 21st century. If you miss this, you will never see it again in your lifetime... and it is also viewed perfectly in Eclipse PHOTO BY JAMIE DIXON Albuquerque. PHOTOSOLAR ANNULAR ECLIPSE To see a NASA history of the Transit of Venus, (MAY 20) click the URL below, which will take you to This summer two astronomical "close http://www.youtube.com/watch?v=OAx- encounters" are taking place. On May 20, _iuCq14 2012, there was an unusual solar event called an "annular eclipse." During the DOCENT TRAINING… annular eclipse, the moon covered most of Docent Training will be held in August and the sun's disk leaving a thin ring of light - a September, 2012. ring of fire - around the edge--often called The scheduled dates are as follows: the ring of fire. Albuquerque was one of only a few places to see it in all its glory! August 6, 8, 13, 15, 20, 22, 27, 29 September 4, 6, 10, 12, 17, 19, 25, 27, 28 Each date will be a distinct hall/topic/subject/ practice and include reviews and exam at the end. Each date is currently planned to run from 9 AM to noon and 1 PM to 4 PM with a one-hour lunch break – although some dates may end early or include time with a mentor and/or self- study. It is expected that the Docents-in-Training will plan to attend every session. Please sign up for this training with Chris Sanchez. Eclipse reflection. PHOTO BY DWIGHT HARRIS 2 Louise Harris, VAN Editor YOUR VOLUNTEER ASSOCIATION EMERGENCY PROCEDURES One Sunday morning last winter when I arrived Volunteers, the Volunteer Association is your at the Museum, two large tour buses were association. Its elected officers for the present already parked out front and had disgorged year, with contact information, are: about 100 older people. It was as busy an opening moment as I have had on Sunday PRESIDENT James Peavler mornings, and it was not long until we had a kind 505-246-8775 of minor crisis. [email protected] A portly, white-haired lady began complaining of PRESIDENT ELECT Dwight Jennison severe pain in her chest. She didn't seem able to 505-229-839 decide whether it was more on her left side or [email protected] right side; it seemed to be down the middle. But she was in a lot of pain and the pain was in her SECRETARY Mina Jane Grothey chest, so, I decided to treat it as a medical issue. 505-323-6855 Luckily, a security guard was in the atrium at the [email protected] time, and I reported her condition to him. It was not long before we had her sitting comfortably in TREASURER Tom Suazo a wheelchair with a blanket wrapped around her, 505-264-0565 had called 911 and made sure an ambulance was [email protected] on the way. PAST PRESIDENT John McDonnell Luckily, I 505-352-8868 happened to [email protected] have followed the correct ____________________________________________________ emergency procedures that THE VAN docents and others are [Volunteer AssociaIon NewsleKer] supposed to The VAN is the bimonthly newsletter of the follow in the Volunteer Association of the New Mexico Museum Museum. I of Natural History and Science (NMMNHS). Please discovered, or feel free to submit appropriate articles. The final rediscovered, submission date is the 15th of the month pre- that the security officers review their emergency ceeding VAN publication. The submission deadline procedures on a regular basis. I think it would be for the July/August issue, for example, will be June difficult to get all the volunteers in for a periodic 15, 2012. review of emergency procedures, but I think it's not a bad idea for us to review them occasionally The VAN is currently edited by Louise Harris and to provide information to our volunteers as [email protected]. Please send submissions, in Word, Pages, or email format, to Louise, with a to the proper procedures. copy to and Chris Sanchez. Photographs are There are two basic kinds of incidents, the encouraged. example above being a simple medical [email protected] emergency. The proper response to a medical [email protected] emergency is to immediately contact a security officer. You could do this by calling the security number at 1-2829, or send someone to find a security person. If there appears to be an 3 immediate health threat (such as unconsciousness, difficulty breathing, etc.) call HELP WANTED 911 first and then call security. Volunteers are Needed: Persons to help with the construction of not supposed to take emergency action such as a virtual tour of the Museum, to be attached to the performing CPR. Injured persons should be website and Facebook pages. It will initially just stabilized so as not to cause further injury and include the Centennial Exhibit, then be extended to made as comfortable as possible until help include the permanent exhibits, as a way to further arrives. attract visitors. Some emergencies threaten more than one Needed: Persons to help with an exhibit entitled person and often even New Science, which will enable recent discoveries the building. The most to be displayed in a timely manner. common such If you would like to contribute to either off these emergency we are projects, please contact Dwight Jennison at likely to have is the fire [email protected] or 505-270-6423. alarm. If you hear a fire President Elect Dwight Jennison alarm it is not your responsibility to find or to fight the fire! A Outreach Opportunity! volunteer's responsibility is to help evacuate the building. DINOSAUR EDUCATION IN Volunteers should make sure that everyone in the SILVER CITY SEPTEMBER 25 part of the museum were they are working moves Museum Educator Cirrelda Snider-Bryan steadily and in a controlled fashion to one of the (Prehistoric Preschool) is looking for two fire exit doors. Volunteers who are already trained in interpreting If it is safe, volunteers should walk through the Mesozoic life/dinosaurs (or who would be willing rooms in the area where they have been working to be trained) to travel to an outreach in Silver and help people find the exits. Normal procedure City. Travel time would be from Friday is to exit through the front door or the north afternoon September 14 through Sunday early doors into the parking lots. This policy is proper afternoon September 16, 2012. in the case of a power outage, a fire, a bomb The Museum has been invited to set up in the threat, a suspicious object left in a hallway, water Western New Mexico University's St. James leaks, floods and other water damage, chemical Stadium for the Grant County Annual Red Hot spill, explosion, earthquake. all of these Children's Fiesta, which occurs from 10:00 AM to events require evacuation of the building. 2:00 PM on Saturday. They expect around 2,000 There are probably many more emergency exits attendees. Their theme this year will be NM than most volunteers are aware of. There are 15 Dinosaurs. Accommodations for both Friday and exits on the first floor, and nine on the second Saturday nights would be paid for by the floor. I think it's a good idea for all volunteers to sponsor, Grant County Community Health know where these exits are. Maps showing where Council. The sponsor is also paying for all meals. the fire extinguishers, fire alarms, and fire exits Travel would be via state vehicle. Ability to help can be found in the red Museum Emergency set up and tear down displays is needed along Procedure spiral notebook which is tacked to the with the ability to interpret them to children, Volunteer bulletin-board in the Volunteer teens and adults. Lounge. You can read the whole thing in 15 If you are interested in this Outreach minutes, and I recommend you do so. opportunity, please call Cirrelda at President James Peavler 505-841-2882 or email [email protected] by June 15th. We will be meeting in June and August to plan. Thanks for considering this opportunity. 4 EDUCATIONAL SEMINARS JULY Educational seminars will be held in the July • Monday tour multipurpose room from 10:30 to 12:30 PM on Docent-led Exhibit Tour June 19 and July 17. All volunteers, docents, and tour guides are invited to attend. Dessert and July 1 • event drinks will be served following the presentations. First Sunday June 19 will feature Larry Crumpler Ph.D. - topic July 1 • special event to be announced. As usual there will be a "whats Children of Time Family Event new" presentation. July 8 • event On July 19 our speaker will be Jim Fassett MSc. Solar Sunday Jim will present us with published data that is believed to establish that dinosaurs survived the July 12 • Curator’s Coffee KT boundary for at least 1.5 million years. His Natural History Exhibits data is both radiometric and stratigraphic in July 19 • Centennial Lecture Series support of this thesis. Additionally there will be a Albuquerque’s Open Space and Urban- "whats new" session. Wildlands Conservation Bud Hodgin, Coordinator Educational Committee Centennial Lecture Series The New Mexico Museum of Natural History and VOICES IN SCIENCE Science is proud to present: The Centennial Lecture Series—100 years of Advances and (& Spiketacular) June-July, 2012 Significant Discoveries in Natural History and Museum Adult and Family EducaIonal Science in New Mexico.
Load more

Recommended publications
  • Gondwana Vertebrate Faunas of India: Their Diversity and Intercontinental Relationships
    438 Article 438 by Saswati Bandyopadhyay1* and Sanghamitra Ray2 Gondwana Vertebrate Faunas of India: Their Diversity and Intercontinental Relationships 1Geological Studies Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India; email: [email protected] 2Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur 721302, India; email: [email protected] *Corresponding author (Received : 23/12/2018; Revised accepted : 11/09/2019) https://doi.org/10.18814/epiiugs/2020/020028 The twelve Gondwanan stratigraphic horizons of many extant lineages, producing highly diverse terrestrial vertebrates India have yielded varied vertebrate fossils. The oldest in the vacant niches created throughout the world due to the end- Permian extinction event. Diapsids diversified rapidly by the Middle fossil record is the Endothiodon-dominated multitaxic Triassic in to many communities of continental tetrapods, whereas Kundaram fauna, which correlates the Kundaram the non-mammalian synapsids became a minor components for the Formation with several other coeval Late Permian remainder of the Mesozoic Era. The Gondwana basins of peninsular horizons of South Africa, Zambia, Tanzania, India (Fig. 1A) aptly exemplify the diverse vertebrate faunas found Mozambique, Malawi, Madagascar and Brazil. The from the Late Palaeozoic and Mesozoic. During the last few decades much emphasis was given on explorations and excavations of Permian-Triassic transition in India is marked by vertebrate fossils in these basins which have yielded many new fossil distinct taxonomic shift and faunal characteristics and vertebrates, significant both in numbers and diversity of genera, and represented by small-sized holdover fauna of the providing information on their taphonomy, taxonomy, phylogeny, Early Triassic Panchet and Kamthi fauna.
    [Show full text]
  • Tasmaniosaurus Triassicus from the Lower Triassic of Tasmania, Australia
    The Osteology of the Basal Archosauromorph Tasmaniosaurus triassicus from the Lower Triassic of Tasmania, Australia Martı´n D. Ezcurra1,2* 1 School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom, 2 GeoBio-Center, Ludwig-Maximilian-Universita¨t Mu¨nchen, Munich, Germany Abstract Proterosuchidae are the most taxonomically diverse archosauromorph reptiles sampled in the immediate aftermath of the Permo-Triassic mass extinction and represent the earliest radiation of Archosauriformes (archosaurs and closely related species). Proterosuchids are potentially represented by approximately 15 nominal species collected from South Africa, China, Russia, Australia and India, but the taxonomic content of the group is currently in a state of flux because of the poor anatomic and systematic information available for several of its putative members. Here, the putative proterosuchid Tasmaniosaurus triassicus from the Lower Triassic of Hobart, Tasmania (Australia), is redescribed. The holotype and currently only known specimen includes cranial and postcranial remains and the revision of this material sheds new light on the anatomy of the animal, including new data on the cranial endocast. Several bones are re-identified or reinterpreted, contrasting with the descriptions of previous authors. The new information provided here shows that Tasmaniosaurus closely resembles the South African proterosuchid Proterosuchus, but it differed in the presence of, for example, a slightly downturned premaxilla, a shorter anterior process of maxilla, and a diamond-shaped anterior end of interclavicle. Previous claims for the presence of gut contents in the holotype of Tasmaniosaurus are considered ambiguous. The description of the cranial endocast of Tasmaniosaurus provides for the first time information about the anatomy of this region in proterosuchids.
    [Show full text]
  • Functional Morphology of Stereospondyl Amphibian Skulls
    Functional Morphology of Stereospondyl Amphibian Skulls Samantha Clare Penrice Doctor of Philosophy School of Life Sciences College of Science July 2018 Functional morphology of stereospondyl amphibian skulls Stereospondyls were the most diverse clade of early tetrapods, spanning 190 million years, with over 250 species belonging to eight taxonomic groups. They had a range of morphotypes and have been found on every continent. Stereospondyl phylogeny is widely contested and repeatedly examined but despite these studies, we are still left with the question, why were they so successful and why did they die out? A group-wide analysis of functional morphology, informing us about their palaeobiology, was lacking for this group and was carried out in order to address the questions of their success and demise. Based on an original photograph collection, size independent skull morphometrics were used, in conjunction with analyses of the fossil record and comparative anatomy, to provide a synthesis of the functional morphology of stereospondyl amphibians. Stereospondyls originated in the Carboniferous and most taxonomic groups were extinct at the end of the Triassic. The early Triassic had exceptionally high numbers of short- lived genera, in habitats that were mostly arid but apparently experienced occasional monsoon rains. Genera turnover slowed and diversity was stable in the Middle Triassic, then declined with a series of extinctions of the Late Triassic. Stereospondyls showed the pattern of ‘disaster’ taxa: rapidly diversifying following a mass extinction, spreading to a global distribution, although this high diversity was relatively short-lived. Geometric morphometrics on characteristics of the skull and palate was carried out to assess general skull morphology and identified the orbital position and skull outline to be the largest sources of skull variation.
    [Show full text]
  • ON the PRINCIPLES of GLOBAL CORRELATION of the CONTINENTAL TRIASSIC on the TETRAPODS the Triassic Was a Time of Transition From
    Acta Palaeontologica Polonica Vol. 34, No. 2 pp. 149-173 Warszawa, 1989 V. G. OCHEV and M. A. SHISHKIN ON THE PRINCIPLES OF GLOBAL CORRELATION OF THE CONTINENTAL TRIASSIC ON THE TETRAPODS OCHEV, V. G. and SHISHKIN, M. A.: On the principles of global correlation af the continental Triassic on the tetsapods. Acta Palaeont. Polonica, 34, 2, 143--173, 1989. History of the Triassic land vertebrates comprises three successive global epoches referred to as proterosuchian, kannemeyeroid and dinosaur ones. The earliest and the middle epoches are typified by the regional faunal sequence of East Europe. The proterosuchian time spaas here the Neorhachitome and Paroto- suchus faunas, the former being directly correlated with the Induan-Lower Olenekian, and the latter with the Upper Olenekian (Spathian). The Eryosuchus and Mastodonsaurus faunas of the kannemeyeroid epoch in East Europe are Middle Triassic in age and correspond to the Muschelkalk and Lettenkohle respectively. An evidence is brought for contemporaneity of the protero- suchian-kannemeyeroid biotic replacement in Laurasia and Gondwana. This implies the Middle Triassic age of the Cynognathus Zone of South Africa and its equivalents in South America. The bulk of Lystrosausus fauna in Gondwana is suggested to range over the most of, or the whole, Early Triassic. K e y w 0 r d s: Triassic tetrapods, biotic epoches, correlation. V. G. Ochev, Saratov State University, Saratov, USSR; M. A. Shtshktn, PaUleontologtcal Institute, Academy of Sciences of the USSR, Profsoyuznaya, 123 Moscow, USSR. Received: December 1988. INTRODUCTION The Triassic was a time of transition from the late Palaeozoic (the- rapsid) to the true Mesozoic (archosaur) stage of the tetrapod faunal evolution.
    [Show full text]
  • Early Triassic Temnospondyls of the Czatkowice 1 Tetrapod Assemblage
    EARLY TRIASSIC TEMNOSPONDYLS OF THE CZATKOWICE 1 TETRAPOD ASSEMBLAGE MIKHAIL A. SHISHKIN and TOMASZ SULEJ Shishkin, M.A. and Sulej, T. 2009. The Early Triassic temnospondyls of the Czatkowice 1 tetrapod assemblage. Palaeontologia Polonica 65, 31–77. Examination of dissociated Early Triassic vertebrate microfossils from the fissure infillings of the Czatkowice quarry in southern Poland (locality Czatkowice 1) allowed recognition of the two taxa of temnospondyl amphibians, the capitosaurid Parotosuchus (Parotosuchus speleus sp. n.) and brachyopid Batrachosuchoides (Batrachosuchoides sp.). Both are repre− sented almost entirely by remains of the young, obviously metamorphosed, juveniles. Based on comparison with the Cis−Uralian Triassic faunal succession, these taxa enable us to refine previous dating of the Czatkowice 1 vertebrate assemblage as early Late Olenekian. The overall composition of this assemblage is believed to provide evidence of its development outside the lowland biotopes. An analysis of structural patterns and growth changes of ele− ments of the palate, occipital arch and jaws demonstrated by the local temnospondyls re− vealed in them a number of peculiar or surprisingly archaic juvenile characters, mostly unre− corded hitherto in Triassic capitosauroids or in the late Temnospondyli in general. These pri− marily include: the ectopterygoid dentition strongly dominated by tusks; the ectopterygoid contributing to formation of the provisional palatal vault; the mandibular symphyseal plate broadly sutured with the precoronoid (as in basal tetrapods) and presumably incompletely integrated with the dentary; the palatal elements articulated with the maxilla−premaxillary complex mostly dorsally or ventrally rather than laterally; and the subotic process of the exoccipital shaped as a vertical plate. As these features were largely found both in capito− saurid and brachyopid juveniles, they can be suggested to characterize some generalized pat− tern of provisional cranial morphology in the development of advanced temnospondyls.
    [Show full text]
  • A Rhinesuchid-Like Temnospondyl from the Permo-Triassic of Uruguay
    C. R. Palevol 11 (2012) 65–78 Contents lists available at ScienceDirect Comptes Rendus Palevol www.sciencedirect.com General palaeontology, systematics and evolution (Vertebrate palaeontology) A rhinesuchid-like temnospondyl from the Permo-Triassic of Uruguay Nouveau temnospondyle de transition en provenance du Permo-Trias d’Uruguay Graciela Pineiro˜ a,∗, Alejandro Ramos a, Claudia Marsicano b a Departamento de Evolución de Cuencas, Sección Bioestratigrafía y Paleoecología, Facultad de Ciencias, Iguá, 4225, Montevideo CP 11400, Uruguay b Departamento de Ciencias Geológicas, Universidad de Buenos Aires, Ciudad Universitaria Pab. II, Buenos Aires C1428 EHA, Argentina article info abstract Article history: A new temnospondyl species, Arachana nigra, from the Permo-Triassic Buena Vista Forma- st Received 1 April 2011 tion of Uruguay is described. The holotypic and only known specimen consists of an almost Accepted after revision 30 July 2011 complete skull lacking most of the snout, the tabular horns and the posterolateral corners of Available online 9 November 2011 the skull table. As with other specimens from the same unit, Arachana shows a transitional morphology. It shares several characters with rhinesuchids, such as the large size and the Presented by Philippe Taquet general shape of the skull, orbits positioned slightly posterior to the skull roof mid-length, a coarsely pitted dermal ornamentation lacking pustules, and a smoothly convex cheek Keywords: contour. The palatal ramus of the pterygoid suturing with the vomer, and excluding the Systematics Lydekkerinidae palatine and ectopterygoid from the margin of the interpterygoid vacuity, and the pres- Rhinesuchidae ence of a small basioccipital, visible in both occipital and ventral view, also resemble the Stereospondyli conditions found in rhinesuchids and other basal temnospondyls.
    [Show full text]
  • The Postcranial Skeleton of Temnospondyls (Tetrapoda: Temnospondyli) Phd Thesis
    Pawley, K. 2006. 149 The Postcranial Skeleton of Temnospondyls (Tetrapoda: Temnospondyli) PhD Thesis. La Trobe University, Melbourne CHAPTER 5. PHYLOGENETIC VARIATION IN THE POSTCRANIAL SKELETON OF TEMNOSPONDYLS (TETRAPODA: TEMNOSPONDYLI) Abstract. Phylogenetically significant features of the postcranial skeleton within the Temnospondyli are described and illustrated. Considerable morphological variation is observable in vertebral structure and the configuration of the dermal pectoral girdle; otherwise, the postcranial skeleton is generally conservative. Although most temnospondyls are best described as amphibious, the most basal temnospondyls are well adapted for terrestrial locomotion, with one major derived clade, the Euskelia, displaying postcranial adaptations to the axial skeleton that may have improved the efficiency of their terrestrial locomotion. Two derived clades, the Dvinosauria and Superstereospondyli, were obligatorily aquatic. In general appearance and lifestyle, most temnospondyls superficially resemble extant crocodilians. The information provided by this overview of the postcranial skeleton is used to revise the postcranial characteristics used for classifying temnospondyls, and to create new characters for a comprehensive phylogenetic analysis of the Temnospondyli, using 57 taxa and 154 phylogenetic characters. This analysis is innovative for phylogenetic analysis of temnospondyls in that morphogenetic and phylogenetic variation in the postcranial skeleton is carefully distinguished and accounted for in the coding of
    [Show full text]
  • Apa 1188.Qxd
    AMEGHINIANA (Rev. Asoc. Paleontol. Argent.) - 42 (2): 501-504. Buenos Aires, 30-06-2005 ISSN 0002-7014 NOTA PALEONTOLÓGICA A new temnospondyl record from the Upper Triassic of Argentina Claudia A. MARSICANO Introduction tion; UCMP, University of California Museum of Paleontology, Berkeley (USA). The Brachyopoidea is a group of Mesozoic tem- nospondyls with flat, parabolic skulls that were re- cently reviewed and considered to include Systematic paleontology Brachyopoidea and Chigutisauridae (Warren and Marsicano, 2000; Yates and Warren, 2000, Damiani TEMNOSPONDYLI Zittel, 1887-1890 and Kitching, 2003). Brachyopids have been record- BRACHYOPOIDEA Lydekker, 1885, sensu Warren ed from several different localities both in and Marsicano, 2000 Gondwana (excluding South America) and Laurasia Brachyopidae? indet. (Warren and Marsicano, 2000) during the Early- Figure 1 Middle Triassic. After the Middle Triassic, they are absent from the fossil record for several million years Material. MCNAM-PV 3195, an incomplete left mandible. until they are recorded in the Middle-Late Jurassic of China (Dong, 1985) and Mongolia (Shishkin, 1991). Locality and Horizon. Quebrada de la Mina, In contrast, chigutisaurid temnospondyls appear to Potrerillos locality, western Mendoza, Argentina; be restricted to Gondwana. They are known from the Cacheuta Formation, Late Triassic (Morel et al., Lower Triassic, Lower Jurassic and Lower 2002). Cretaceous of Australia (Warren, 1981; Warren and Description. The specimen (MCNACM-PV-3195) Hutchinson, 1983; Warren et al., 1997), the Upper corresponds to the anterior part of a left mandible, Triassic of Argentina (Bonaparte, 1975; Marsicano, from the symphysis to the level of the anterior coro- 1993, 1999) and India (Sengupta, 1995), and from the noid (figure 1).
    [Show full text]
  • Temnospondyl Diversity of the Permian-Triassic Colonia Orozco Local Fauna (Buena Vista Formation) of Uruguay
    Rev. bras. paleontol. 10(3):169-180, Setembro/Dezembro 2007 © 2007 by the Sociedade Brasileira de Paleontologia TEMNOSPONDYL DIVERSITY OF THE PERMIAN-TRIASSIC COLONIA OROZCO LOCAL FAUNA (BUENA VISTA FORMATION) OF URUGUAY GRACIELA PIÑEIRO Departamento de Evolución de Cuencas, Universidad de la República, Iguá 422, CP.11400, Montevideo, Uruguay. [email protected] CLAUDIA MARSICANO Departamento de Ciencias Geológicas, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II. Buenos Aires, Argentina. [email protected] CÉSAR GOSO & ELIZABETH MOROSI Departamento de Evolución de Cuencas, Universidad de la República, Iguá 422, CP.11400, Montevideo, Uruguay. ABSTRACT – Temnospondyls are the most abundant constituent of the Colonia Orozco Local Fauna of the Uruguayan Buena Vista Formation (Paraná Basin), contrasting with that observed at most latest Permian and earliest Triassic assemblages elsewhere. The components of the Colonia Orozco fauna, appear to represent early stages of the turnover evidenced in the communities of continental tetrapods at the Permo-Triassic boundary. They include plesiomorphic representatives of groups present in Early Triassic assemblages as well as relicts of Late Permian taxa. In particular, the presence of a close relative of the Russian dvinosauroid, Dvinosaurus, implies a dispersal event of this taxon to Gondwana probably during the Late Permian. Comparisons of the Colonia Orozco fauna to other Permo-Triassic communities indicate that it could be older than the Brazilian Lower Triassic Catuçaba Local Fauna of the Sanga do Cabral Formation (Paraná Basin) and probably equivalent to the latest Permian Russian Vyazniki Community. Moreover, the Colonia Orozco fauna could be close to the assemblages represented in the lowermost portion of the South African Lower Triassic Lystrosaurus Assemblage Zone and probably to the Arcadia Formation of Australia.
    [Show full text]
  • Chigutisaurid Temnospondyls from the Late Triassic of India and Review
    CHIGUTISAURID TEMNOSPONDYLS FROM THE LATE TRIASSIC OF INDIA AND A REVIEW OF THE FAMILY CHIGUTISAURIDAE b y DHURJATI P. SENGUPTA A b s t r a c t . T w o chigutisaurids (Amphibia, Temnospondyli),Compsocerops cosgriffi gen. et sp. nov. and Kuttycephalus triangularis gen. et. sp. nov., from the Late Triassic Maleri Formation, Pranhita-Godavari valley, Deccan, India are described. In the past, the only known chigutisaurids have been two genera from Australia and probably two from South America. Relationships within the family are analysed and two groups are recognized. They possess marked differences in their palate and dentition. The Late Triassic beds of the Pranhita-Godavari valley exhibit a rapid faunal change. Two faunal zones are present in the Maleri Formation. The age of the lower zone is possibly Late Camian and the upper is Early Norian. Chigutisaurids are present in the upper faunal zone only. T w o new taxa of the family Chigutisauridae, a rare group of temnospondyl amphibians, previously known only from South America and Australia, have been recovered from Late Triassic continental red beds of the Maleri Formation of the Pranhita-Godavari valley, Deccan, India (Text-fig. 1). During the last decade or so, the chigutisaurids have attracted the attention of palaeontologists, as they are known to have crossed the Triassic-Jurassic boundary (Warren and Hutchinson 1983). The new taxa from India have been discovered at a juncture when more information is needed to bridge the geographical gap between the South American and the Australian chigutisaurids. Against this background, the new chigutisaurids seem to be of extreme importance.
    [Show full text]
  • Genus/Species Skull Ht Lt Wt Stage Range Abiadisaurus U.Triassic-M.Jurassic Ethiopia A
    Genus/Species Skull Ht Lt Wt Stage Range Abiadisaurus U.Triassic-M.Jurassic Ethiopia A. witteni U.Triassic-M.Jurassic Ethiopia Acamthostega U.Devonian USA A. sp. U.Devonian USA Acanthostega 20 cm 1 m U.Devonian Greenland A. gunnari 60 cm Famennian Greenland Acanthostoma see Zatrachys A. vorax L.Permian Germany Acanthostomatops see Zatrachys A. vorax 4 cm? L. Permian Germany Acerastea 30 cm 1.8 m L.Triassic Australia A. wadeae(wadei) 30 cm 1.8 m Induan Queensland(AU) Acheloma L.Permian W USA A. cumminsi Leonardian Texas,Oklahoma(US) A. pricei A. whitei A. sp. L.Permian Texas(US) Achelorna probably Acheloma Acherontiscus 12.7 cm U.Mississippian Scotland A. caledoniae Visean-Namurian Scotland Acris L.Miocene-U.Pleistocene USA A. barbouri Hemingfordian Florida(US) A. crepitans living Northern Cricket Frog Barstovian-Recent Nebraska(US) A. gryllus living Southern Cricket Frog Rancholabrean-Recent Florida(US) Acroplous L.Permian W USA A. vorax 6.8 cm L.Permian Kansas(US) Actinodon 1.5 m L.Permian France, Czechoslovakia, India A. brevis see Sclerocephalus frossardi A. frossardi see Sclerocephalus frossardi L.Permian France A. germanicum(germanicus) see Sclerocephalus credneri L.Permian Czech Republic A. latirostris see Cheliderpeton latirostre Autunian Germany A. risinensis see Lysipterygium risinense Actiobates U.Pennsylvanian W USA A. peabodyi U.Pennsylvanian Kansas(US) Adelogyrinus 2.5 cm? 16 cm? M-U.Mississippian Scotland A. simorhynchus Silesian Scotland Adelospondylus M-U.Mississippian Scotland A. watsoni 5 cm? 50 cm? Dinantian Scotland Adelphesiren see Habrosaurus A. olivae see Habrosaurus dilatus Adenoderma U.Pennsylvanian Europe Albanerpeton M.Jurassic-M.Miocene Europe,N America A.
    [Show full text]
  • Early Triassic Terrestrial Tetrapod Fauna a Review
    Earth-Science Reviews 210 (2020) 103331 Contents lists available at ScienceDirect Earth-Science Reviews journal homepage: www.elsevier.com/locate/earscirev Invited Review Early Triassic terrestrial tetrapod fauna: a review T ⁎ Marco Romanoa,b, Massimo Bernardic,d, , Fabio Massimo Pettic, Bruce Rubidgeb, John Hancoxb, Michael J. Bentond a Dipartimento di Scienze della Terra, Sapienza Università di Roma, P.le A. Moro 5, 00185 Rome, Italy b Evolutionary Studies Institute (ESI) and School of Geosciences, University of the Witwatersrand, Johannesburg, South Africa c MUSE – Museo delle Scienze, Corso del Lavoro e della Scienza 3, 38122 Trento, Italy d School of Earth Sciences, University of Bristol, Queens Road, Bristol BS8 1RJ, UK ARTICLE INFO ABSTRACT Keywords: The Permian-Triassic mass extinction (PTME, ca. 252 Mya) was one of the most severe biotic crises of the Tetrapods Phanerozoic, eliminating > 90% of marine and terrestrial species. This was followed by a long period of re- Early Triassic covery in the Early and Middle Triassic which revolutionised the structure of both marine and terrestrial eco- Late Permian systems, triggering the new ecosystem structure of the Mesozoic and Cenozoic. Entire new clades emerged after Permo-Triassic mass extinction the mass extinction, including decapods and marine reptiles in the oceans and new tetrapods on land. In both marine and terrestrial ecosystems, the recovery is interpreted as stepwise and slow, from a combination of continuing environmental perturbations and complex multilevel interaction between species in the new en- vironments as ecosystems reconstructed themselves. Here, we present a review of Early Triassic terrestrial tet- rapod faunas, geological formations and outcrops around the world, and provide a semi-quantitative analysis of a data set of Early Triassic terrestrial tetrapods.
    [Show full text]