R D E Macphee
Biographic Data
| ID | 625882 |
|---|---|
| NAME | R D E Macphee |
| GIVEN NAMES | R D E |
| FAMILY NAME | Macphee |
| SIGNATURE | MACPHEE R D E |
| AFFILIATIONS | American Museum of Natural History |
| ORCID | 0000-0003-0688-0232 |
| VERIFIED | Yes |
| TOTAL WORKS | 26 |
| TOTAL CITATIONS | 218 |
| AUTHOR COUNT | 26 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1981 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 8 |
Cranial Anatomy of Argyrolagus (Metatheria, Argyrolagidae)
Argyrolagus and its closest relatives (Argyrolagidae; Late Eocene or Early Oligocene–Early Pleistocene) are usually regarded as outliers among marsupials, with many peculiar craniodental and postcranial features that differ considerably from those found in other recognized groups of metatherians. In the literature this factor has led to variant interpretations of basic anatomical features that usually present no difficulty in identification, like…
Transverse Canal Foramen and Pericarotid Venous Network in Metatheria and Other Mammals
Although few nondental features of the osteocranium consistently discriminate marsupials from placentals, the transverse canal foramen (TCF) has been repeatedly offered as a potential synapomorphy of crown-group Marsupialia and their closest allies. To explore this contention appropriately, the TCF needs to be evaluated in relation to the morphofunctional complex of which it is a part, something never previously undertaken in a systematic fashion…
Optimizing extraction and targeted capture of ancient environmental DNA for reconstructing past environments using the PalaeoChip Arctic-1.0 bait-set
Sedimentary ancient DNA (sedaDNA) has been established as a viable biomolecular proxy for tracking taxon presence through time in a local environment, even in the total absence of surviving tissues. SedaDNA is thought to survive through mineral binding, facilitating long-term biomolecular preservation, but also challenging DNA isolation. Two common limitations in sedaDNA extraction are the carryover of other substances that inhibit enzymatic reac…
Cranial Morphology and Phylogenetic Relationships of Trigonostylops wortmani, an Eocene South American Native Ungulate
In 1933 George G. Simpson described a remarkably complete skull of Trigonostylops, an Eocene South American native ungulate (SANU) whose relationships were, in his mind, quite uncertain. Although some authorities, such as Florentino Ameghino and William B. Scott, thought that a case could be made for regarding Trigonostylops as an astrapothere, Simpson took a different position, emphasizing what would now be regarded as autapomorphies. He pointed…
Caudal Cranium of Thylacosmilus atrox (Mammalia, Metatheria, Sparassodonta), a South American Predaceous Sabertooth
The caudal cranium of the South American sabertooth Thylacosmilus atrox (Thylacosmilidae, Sparassodonta, Metatheria) is described in detail, with emphasis on the constitution of the walls of the middle ear, cranial vasculature, and major nerve pathways. With the aid of micro-CT scanning of the holotype and paratype, we have established that five cranial elements (squamosal, alisphenoid, exoccipital, petrosal, and ectotympanic) and their various o…
Late Quaternary Fossil Mammals from the Cayman Islands, West Indies
Abundant fossils of nesophontid lipotyphlan insectivores and capromyid rodents have been collected from late Quaternary deposits on the Cayman Islands, an island group separated by a major marine barrier from other Caribbean landmasses and isolated from anthropogenic impacts until the arrival of Columbus in 1503 CE. These collections have not previously been formally described. Using morphological and ancient DNA approaches, we document three new…
Exceptional Skull of Huayqueriana (Mammalia, Litopterna, Macraucheniidae) From the Late Miocene of Argentina
The Huayquerías Formation (Late Miocene, Huayquerian SALMA) is broadly exposed in west-central Argentina (Mendoza). The target of several major paleontological expeditions in the first half of the 20th century, the Mendozan Huayquerías (“badlands”) have recently yielded a significant number of new fossil finds. In this contribution we describe a complete skull (IANIGLA-PV 29) and place it systematically as Huayqueriana cf. H. cristata (Rovereto, …
The Serrialis Bone, Interparietals, “X” Elements, Entotympanics, and the Composition of the Notoungulate Caudal Cranium
The composition of the caudal cranium in Notoungulata, an extinct group of endemic South American “ungulates,” has never been properly clarified. Some investigators have claimed that socalled “adventitious” elements, or elements not known to occur in other placentals, existed in the auditory regions of certain typotheres and toxodontians. Others have disputed this, arguing that sutures or other indicia that supposedly provide evidence of the deve…
Basicranial Morphology and Relationships of Antillean Heptaxodontidae (Rodentia, Ctenohystrica, Caviomorpha)
What, if much of anything, are “Antillean heptaxodontids”? Over the course of nearly a century and a half, these caviomorph rodents, with their distinctive quasilamellar cheek teeth and generally large body size, have been diversely regarded as members of Chinchilloidea, or Cavioidea, or Octodontoidea; as distinct enough to warrant their own family or subfamily, or as no more than an offshoot within Dinomyidae or Capromyidae; and as having diverg…
Mammoths in the insular Nearctic? Some constraints on the existence of a Pleistocene megafaunal refugium in the Canadian Arctic Archipelago
Radiocarbon Chronologies and Extinction Dynamics of the Late Quaternary Mammalian Megafauna of the Taimyr Peninsula, Russian Federation
Skull of early EoceneCantius abditus (primates
A substantially complete skull and mandible of the primitive adapiform Cantius is reported from the Early Eocene Willwood Formation of Wyoming. The mandible contains an almost complete lower dentition in which the lower incisors are strongly inclined and have spatulate crowns, I(2) is larger than I(1), and the canine is large and projecting. The cranium shares many features with those of Notharctus and Smilodectes but differs in having nasals tha…
The quaternary Cuban platyrrhineParalouatta varonaiand the origin of Antillean monkeys
Body Size Variability and a Sangamonian Extinction Model for Amblyrhiza, a West Indian Megafaunal Rodent
The megafaunal rodent Amblyrhiza inundata from Anguilla and St. Martin is often cited in lists of late Quaternary human-induced extinctions, but its date of disappearance has never been established. Here, we present a suite of uranium-series disequilibrium dates from three independent Amblyrhiza sites in Anguilla, all of which cluster in marine isotope Stage 5. Thus, there is no indication that Amblyrhiza survived into the late Holocene, when isl…
Accelerator mass spectrometry14C age determination for the alleged ''Cuban spider monkey'',Ateles(=;Montaneia) anthropomorphus
Earliest monkey from Greater Antilles
Significance of primate petrosal from Middle Eocene fissure-fillings at Shanghuang, Jiangsu Province, People's Republic of China
Cranial Anatomy of Shoshonius and the Antiquity of Anthropoidea
Holocene Charcoal Stratigraphy from Laguna Tortuguero, Puerto Rico, and the Timing of Human Arrival on the Island
From Cuba
Dating of modified femora of extinct dwarf Hippopotamus from Southern Madagascar
Pre-Wisconsinan Mammals from Jamaica and Models of Late Quaternary Extinction in the Greater Antilles
The vertebrate fauna recovered from indurated conglomerates at Wallingford Roadside Cave (central Jamaica) is shown to be in excess of 100,000 yr old according to uranium series and electron spin resonance dating. The Wallingford local fauna is therefore pre-Wisconsinan in age, and Roadside Cave is now the oldest radiometrically dated locality in the West Indies containing identifiable species of land mammals. In the absence of a good radiometric…
Basicranial morphology and ontogeny of the extinct giant lemur Megaladapis
The extinct Holocene giant lemurs of Madagascar— Magaladapis, Palaeopropithecus , and Archaeoindris —possess a suite of basicranial features not found in any other lemuriforms: (1) ectotympanic not “free,” (2) external acoustic canal elongated, (3) tympanic floors not swollen, and (4) reduced internal carotid and stapedial arteries. According to some authors, the first three traits are strongly convergent on morphological conditions in catarrhine…
Early Holocene chronology and environment of Ampasambazimba, A Malagasy subfossil lemur site
A new fossil cebine from hispaniola
An incomplete mandibular fragment of a cebine monkey from an early Holocene Haitian cave deposit adds to the small but growing list of fossil Antillean primates. The jaw is of the correct size to belong to the same taxon as the partial maxilla of “Saimiri” bernensis from the Dominican Republic. Both finds probably represent a single species whose proximate ancestry lay closer to Cebus than to Saimiri , although more evidence will be required to s…
Radiocarbon Chronologies and Extinction Dynamics of the Late Quaternary Mammalian Megafauna of the Taimyr Peninsula, Russian Federation
Anatomy of the temporal bone in early anthropoids, with remarks on the problem of anthropoid origins
New and previously undescribed specimens of the petrous, squamous, and tympanic parts of the temporal bones of anthropoid primates from the Oligocene of Egypt display a general morphological resemblance to the equivalent parts of Recent ceboid skulls. Like that of ceboids, the ectotympanic bone of Fayum anthropoids is a simple anulus, fused to the squamosal at both its extremities. The petrosal's bullar contribution appears to bear transverse sep…
Holocene Charcoal Stratigraphy from Laguna Tortuguero, Puerto Rico, and the Timing of Human Arrival on the Island
Dating of modified femora of extinct dwarf Hippopotamus from Southern Madagascar
Significance of primate petrosal from Middle Eocene fissure-fillings at Shanghuang, Jiangsu Province, People's Republic of China
The quaternary Cuban platyrrhineParalouatta varonaiand the origin of Antillean monkeys
A new fossil cebine from hispaniola
An incomplete mandibular fragment of a cebine monkey from an early Holocene Haitian cave deposit adds to the small but growing list of fossil Antillean primates. The jaw is of the correct size to belong to the same taxon as the partial maxilla of “Saimiri” bernensis from the Dominican Republic. Both finds probably represent a single species whose proximate ancestry lay closer to Cebus than to Saimiri , although more evidence will be required to s…
Early Holocene chronology and environment of Ampasambazimba, A Malagasy subfossil lemur site
Basicranial morphology and ontogeny of the extinct giant lemur Megaladapis
The extinct Holocene giant lemurs of Madagascar— Magaladapis, Palaeopropithecus , and Archaeoindris —possess a suite of basicranial features not found in any other lemuriforms: (1) ectotympanic not “free,” (2) external acoustic canal elongated, (3) tympanic floors not swollen, and (4) reduced internal carotid and stapedial arteries. According to some authors, the first three traits are strongly convergent on morphological conditions in catarrhine…
Earliest monkey from Greater Antilles
From Cuba
Anatomy of the temporal bone in early anthropoids, with remarks on the problem of anthropoid origins
New and previously undescribed specimens of the petrous, squamous, and tympanic parts of the temporal bones of anthropoid primates from the Oligocene of Egypt display a general morphological resemblance to the equivalent parts of Recent ceboid skulls. Like that of ceboids, the ectotympanic bone of Fayum anthropoids is a simple anulus, fused to the squamosal at both its extremities. The petrosal's bullar contribution appears to bear transverse sep…
A new fossil cebine from hispaniola
An incomplete mandibular fragment of a cebine monkey from an early Holocene Haitian cave deposit adds to the small but growing list of fossil Antillean primates. The jaw is of the correct size to belong to the same taxon as the partial maxilla of “Saimiri” bernensis from the Dominican Republic. Both finds probably represent a single species whose proximate ancestry lay closer to Cebus than to Saimiri , although more evidence will be required to s…
Early Holocene chronology and environment of Ampasambazimba, A Malagasy subfossil lemur site
Basicranial morphology and ontogeny of the extinct giant lemur Megaladapis
The extinct Holocene giant lemurs of Madagascar— Magaladapis, Palaeopropithecus , and Archaeoindris —possess a suite of basicranial features not found in any other lemuriforms: (1) ectotympanic not “free,” (2) external acoustic canal elongated, (3) tympanic floors not swollen, and (4) reduced internal carotid and stapedial arteries. According to some authors, the first three traits are strongly convergent on morphological conditions in catarrhine…
Pre-Wisconsinan Mammals from Jamaica and Models of Late Quaternary Extinction in the Greater Antilles
The vertebrate fauna recovered from indurated conglomerates at Wallingford Roadside Cave (central Jamaica) is shown to be in excess of 100,000 yr old according to uranium series and electron spin resonance dating. The Wallingford local fauna is therefore pre-Wisconsinan in age, and Roadside Cave is now the oldest radiometrically dated locality in the West Indies containing identifiable species of land mammals. In the absence of a good radiometric…
Dating of modified femora of extinct dwarf Hippopotamus from Southern Madagascar
From Cuba
Cranial Anatomy of Shoshonius and the Antiquity of Anthropoidea
Holocene Charcoal Stratigraphy from Laguna Tortuguero, Puerto Rico, and the Timing of Human Arrival on the Island
Earliest monkey from Greater Antilles
Significance of primate petrosal from Middle Eocene fissure-fillings at Shanghuang, Jiangsu Province, People's Republic of China
Accelerator mass spectrometry14C age determination for the alleged ''Cuban spider monkey'',Ateles(=;Montaneia) anthropomorphus
Body Size Variability and a Sangamonian Extinction Model for Amblyrhiza, a West Indian Megafaunal Rodent
The megafaunal rodent Amblyrhiza inundata from Anguilla and St. Martin is often cited in lists of late Quaternary human-induced extinctions, but its date of disappearance has never been established. Here, we present a suite of uranium-series disequilibrium dates from three independent Amblyrhiza sites in Anguilla, all of which cluster in marine isotope Stage 5. Thus, there is no indication that Amblyrhiza survived into the late Holocene, when isl…
Skull of early EoceneCantius abditus (primates
A substantially complete skull and mandible of the primitive adapiform Cantius is reported from the Early Eocene Willwood Formation of Wyoming. The mandible contains an almost complete lower dentition in which the lower incisors are strongly inclined and have spatulate crowns, I(2) is larger than I(1), and the canine is large and projecting. The cranium shares many features with those of Notharctus and Smilodectes but differs in having nasals tha…
The quaternary Cuban platyrrhineParalouatta varonaiand the origin of Antillean monkeys
Radiocarbon Chronologies and Extinction Dynamics of the Late Quaternary Mammalian Megafauna of the Taimyr Peninsula, Russian Federation
Mammoths in the insular Nearctic? Some constraints on the existence of a Pleistocene megafaunal refugium in the Canadian Arctic Archipelago
Basicranial Morphology and Relationships of Antillean Heptaxodontidae (Rodentia, Ctenohystrica, Caviomorpha)
What, if much of anything, are “Antillean heptaxodontids”? Over the course of nearly a century and a half, these caviomorph rodents, with their distinctive quasilamellar cheek teeth and generally large body size, have been diversely regarded as members of Chinchilloidea, or Cavioidea, or Octodontoidea; as distinct enough to warrant their own family or subfamily, or as no more than an offshoot within Dinomyidae or Capromyidae; and as having diverg…
The Serrialis Bone, Interparietals, “X” Elements, Entotympanics, and the Composition of the Notoungulate Caudal Cranium
The composition of the caudal cranium in Notoungulata, an extinct group of endemic South American “ungulates,” has never been properly clarified. Some investigators have claimed that socalled “adventitious” elements, or elements not known to occur in other placentals, existed in the auditory regions of certain typotheres and toxodontians. Others have disputed this, arguing that sutures or other indicia that supposedly provide evidence of the deve…
Exceptional Skull of Huayqueriana (Mammalia, Litopterna, Macraucheniidae) From the Late Miocene of Argentina
The Huayquerías Formation (Late Miocene, Huayquerian SALMA) is broadly exposed in west-central Argentina (Mendoza). The target of several major paleontological expeditions in the first half of the 20th century, the Mendozan Huayquerías (“badlands”) have recently yielded a significant number of new fossil finds. In this contribution we describe a complete skull (IANIGLA-PV 29) and place it systematically as Huayqueriana cf. H. cristata (Rovereto, …
Caudal Cranium of Thylacosmilus atrox (Mammalia, Metatheria, Sparassodonta), a South American Predaceous Sabertooth
The caudal cranium of the South American sabertooth Thylacosmilus atrox (Thylacosmilidae, Sparassodonta, Metatheria) is described in detail, with emphasis on the constitution of the walls of the middle ear, cranial vasculature, and major nerve pathways. With the aid of micro-CT scanning of the holotype and paratype, we have established that five cranial elements (squamosal, alisphenoid, exoccipital, petrosal, and ectotympanic) and their various o…
Late Quaternary Fossil Mammals from the Cayman Islands, West Indies
Abundant fossils of nesophontid lipotyphlan insectivores and capromyid rodents have been collected from late Quaternary deposits on the Cayman Islands, an island group separated by a major marine barrier from other Caribbean landmasses and isolated from anthropogenic impacts until the arrival of Columbus in 1503 CE. These collections have not previously been formally described. Using morphological and ancient DNA approaches, we document three new…
Optimizing extraction and targeted capture of ancient environmental DNA for reconstructing past environments using the PalaeoChip Arctic-1.0 bait-set
Sedimentary ancient DNA (sedaDNA) has been established as a viable biomolecular proxy for tracking taxon presence through time in a local environment, even in the total absence of surviving tissues. SedaDNA is thought to survive through mineral binding, facilitating long-term biomolecular preservation, but also challenging DNA isolation. Two common limitations in sedaDNA extraction are the carryover of other substances that inhibit enzymatic reac…
Cranial Morphology and Phylogenetic Relationships of Trigonostylops wortmani, an Eocene South American Native Ungulate
In 1933 George G. Simpson described a remarkably complete skull of Trigonostylops, an Eocene South American native ungulate (SANU) whose relationships were, in his mind, quite uncertain. Although some authorities, such as Florentino Ameghino and William B. Scott, thought that a case could be made for regarding Trigonostylops as an astrapothere, Simpson took a different position, emphasizing what would now be regarded as autapomorphies. He pointed…
Transverse Canal Foramen and Pericarotid Venous Network in Metatheria and Other Mammals
Although few nondental features of the osteocranium consistently discriminate marsupials from placentals, the transverse canal foramen (TCF) has been repeatedly offered as a potential synapomorphy of crown-group Marsupialia and their closest allies. To explore this contention appropriately, the TCF needs to be evaluated in relation to the morphofunctional complex of which it is a part, something never previously undertaken in a systematic fashion…
Biology (23 works) · Evolution and Paleontology Studies (18 works) · Geography (11 works) · Paleontology (11 works) · Paleontology (10 works) · Primate Behavior and Ecology (10 works) · Anatomy (9 works) · Bat Biology and Ecology Studies (9 works) · Ecology (9 works) · Anatomy (8 works)