{"title":"根据西班牙保存完好的新材料获得的关于Cenomanian bothremydid海龟Algoracelus的新信息","authors":"A. Pérez‐García","doi":"10.5194/FR-21-119-2018","DOIUrl":null,"url":null,"abstract":"Abstract. Algorachelus peregrinus is the oldest representative of the crown\ngroup Pleurodira known in Laurasia. The type locality of this bothremydid is\nAlgora, situated in central Spain, at levels deposited during the uppermost\nmiddle–lowermost upper\nCenomanian. A new excavation was recently carried out in this town. As a\nresult, abundant material of Algorachelus peregrinus has been found.\nSeveral complete shells, as well as numerous partial carapaces and plastra,\nare presented here. The abundance of remains allows the analysis of the\ngeneral patterns by which some of the shells of this littoral form were\npartially or totally disarticulated. The analysis of these remains not only\nshows several pathologies but also improves the knowledge about the anatomy\nand intraspecific variability of Algorachelus peregrinus. This new\ninformation allows the revision of other Cenomanian forms of Bothremydidae,\nboth from the Middle East and from North America. Thus, Algorachelus\nis identified in these regions, being represented in the early or middle\nCenomanian of Palestine by the new combination Algorachelus parvus,\nand in the uppermost Cenomanian of Utah by the new combination\nAlgorachelus tibert. Therefore, a relatively fast and widely\ndistributed geographic dispersion event is recognized, corresponding to the\noldest dispersal event so far identified for a lineage of Pleurodira from\nGondwana to Laurasia.","PeriodicalId":48830,"journal":{"name":"Fossil Record","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2018-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"12","resultStr":"{\"title\":\"New information on the Cenomanian bothremydid turtle Algorachelus based on new, well-preserved material from Spain\",\"authors\":\"A. Pérez‐García\",\"doi\":\"10.5194/FR-21-119-2018\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract. Algorachelus peregrinus is the oldest representative of the crown\\ngroup Pleurodira known in Laurasia. The type locality of this bothremydid is\\nAlgora, situated in central Spain, at levels deposited during the uppermost\\nmiddle–lowermost upper\\nCenomanian. A new excavation was recently carried out in this town. As a\\nresult, abundant material of Algorachelus peregrinus has been found.\\nSeveral complete shells, as well as numerous partial carapaces and plastra,\\nare presented here. The abundance of remains allows the analysis of the\\ngeneral patterns by which some of the shells of this littoral form were\\npartially or totally disarticulated. The analysis of these remains not only\\nshows several pathologies but also improves the knowledge about the anatomy\\nand intraspecific variability of Algorachelus peregrinus. This new\\ninformation allows the revision of other Cenomanian forms of Bothremydidae,\\nboth from the Middle East and from North America. Thus, Algorachelus\\nis identified in these regions, being represented in the early or middle\\nCenomanian of Palestine by the new combination Algorachelus parvus,\\nand in the uppermost Cenomanian of Utah by the new combination\\nAlgorachelus tibert. Therefore, a relatively fast and widely\\ndistributed geographic dispersion event is recognized, corresponding to the\\noldest dispersal event so far identified for a lineage of Pleurodira from\\nGondwana to Laurasia.\",\"PeriodicalId\":48830,\"journal\":{\"name\":\"Fossil Record\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2018-04-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"12\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fossil Record\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.5194/FR-21-119-2018\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"PALEONTOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fossil Record","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.5194/FR-21-119-2018","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PALEONTOLOGY","Score":null,"Total":0}
New information on the Cenomanian bothremydid turtle Algorachelus based on new, well-preserved material from Spain
Abstract. Algorachelus peregrinus is the oldest representative of the crown
group Pleurodira known in Laurasia. The type locality of this bothremydid is
Algora, situated in central Spain, at levels deposited during the uppermost
middle–lowermost upper
Cenomanian. A new excavation was recently carried out in this town. As a
result, abundant material of Algorachelus peregrinus has been found.
Several complete shells, as well as numerous partial carapaces and plastra,
are presented here. The abundance of remains allows the analysis of the
general patterns by which some of the shells of this littoral form were
partially or totally disarticulated. The analysis of these remains not only
shows several pathologies but also improves the knowledge about the anatomy
and intraspecific variability of Algorachelus peregrinus. This new
information allows the revision of other Cenomanian forms of Bothremydidae,
both from the Middle East and from North America. Thus, Algorachelus
is identified in these regions, being represented in the early or middle
Cenomanian of Palestine by the new combination Algorachelus parvus,
and in the uppermost Cenomanian of Utah by the new combination
Algorachelus tibert. Therefore, a relatively fast and widely
distributed geographic dispersion event is recognized, corresponding to the
oldest dispersal event so far identified for a lineage of Pleurodira from
Gondwana to Laurasia.
期刊介绍:
Fossil Record (FR) is the palaeontological journal of the Museum für Naturkunde Berlin. This journal was founded in 1998 under the name Mitteilungen aus dem Museum für Naturkunde Berlin, Geowissenschaftliche Reihe and appears with two issues each year. Fossil Record publishes original papers in all areas of palaeontology including the taxonomy and systematics of fossil organisms, biostratigraphy, palaeoecology, and evolution. All taxonomic groups are treated, including invertebrates, microfossils, plants, and vertebrates.